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Veterinary Zootechnist graduated from the Universidad Autónoma Metropolitana Campus Xochimilco Unit in 1981. Obtained his master's degree at the Centro de Ganadería at the Colegio de Postgraduados in 1984 in Mexico and his doctoral degree at the University of Nebraska, Lincoln in 1991 conducting experiments in ruminant nutrition. Subsequently realized a post-doctoral training at New Mexico State University in wildlife nutrition in 1998. Dr. Mendoza has been a member of the Mexican National System of Researchers since 1987 and was distinguished with the higher Level since 2000. Is a member of the Mexican Academy of Sciences (2002) and the Mexican Veterinary Academy (2000). Dr. Mendoza has been part of numerous Scientific Committees in the National Council of Science and Technology of Mexico (CONACYT) and in national and international scientific societies. In 2002 received the State of Mexico Award for Science and Technology. In 2007 he was distinguished with the Recognition of Scientific Merit by the Benemérita Universidad Autónoma de Puebla for his studies in wildlife. In 2017 he received the IV Foundation Prize of the Spanish Confederation of Compound Food Manufacturers (CESFAC) granted by the Royal Academy of Veterinary Sciences of Spain 2017.Currently the Coordinator of the Doctorate in Agricultural Sciences at the Universidad Autónoma Metropolitana at the Campus Xochimilco in Mexico City.
The environmental sustainability of beef production is a significant concern within the food production system. Tannins (TANs) can be used to minimize the environmental impact of ruminant production because they can improve ruminal fermentation and ruminants’ lifetime performances and mitigate methane (CH4) emissions. The objective of this study was to evaluate the effects of dietary supplementation with TANs as sustainable natural alternative to reduce the environmental impact on growth performance, rumen fermentation, enteric CH4 emissions, and nitrogen (N) use efficiency of beef cattle through a meta-analysis. A comprehensive search of studies published in scientific journals that investigated the effects of TANs’ supplementation on the variables of interest was performed using the Scopus, Web of Science, and PubMed databases. The data analyzed were extracted from 32 peer-reviewed publications. The effects of TANs were assessed using random-effects statistical models to examine the standardized mean difference (SMD) between TANs’ treatments and control (non-TANs). The heterogeneity was explored by meta-regression and subgroup analysis was performed for the covariates that were significant. TANs’ supplementation did not affect weight gain, feed consumption, feed efficiency, or N use efficiency (p > 0.05). However, it reduced the concentration of ammonia nitrogen in rumen (SMD = −0.508, p< 0.001), CH4 emissions per day (SMD = −0.474, p< 0.01) and per unit dry matter intake (SMD = −0.408, p< 0.01), urinary N excretion (SMD = −0.338, p< 0.05), and dry matter digestibility (SMD = −0.589, p< 0.001). Ruminal propionate (SMD = 0.250) and butyrate (SMD = 0.198) concentrations and fecal N excretion (SMD = 0.860) improved in response to TANs’ supplementation (p< 0.05). In conclusion, it is possible to use TANs as a CH4 mitigation strategy without affecting cattle growth rate. In addition, the shift from urinary to fecal N may be beneficial for environment preservation, as urinary N induces more harmful emissions than fecal N. Therefore, the addition of tannins in the diet of beef cattle could be used as a sustainable natural alternative to reduce the environmental impact of beef production.
José Orzuna-Orzuna; Griselda Dorantes-Iturbide; Alejandro Lara-Bueno; Germán Mendoza-Martínez; Luis Miranda-Romero; Pedro Hernández-García. Effects of Dietary Tannins’ Supplementation on Growth Performance, Rumen Fermentation, and Enteric Methane Emissions in Beef Cattle: A Meta-Analysis. Sustainability 2021, 13, 7410 .
AMA StyleJosé Orzuna-Orzuna, Griselda Dorantes-Iturbide, Alejandro Lara-Bueno, Germán Mendoza-Martínez, Luis Miranda-Romero, Pedro Hernández-García. Effects of Dietary Tannins’ Supplementation on Growth Performance, Rumen Fermentation, and Enteric Methane Emissions in Beef Cattle: A Meta-Analysis. Sustainability. 2021; 13 (13):7410.
Chicago/Turabian StyleJosé Orzuna-Orzuna; Griselda Dorantes-Iturbide; Alejandro Lara-Bueno; Germán Mendoza-Martínez; Luis Miranda-Romero; Pedro Hernández-García. 2021. "Effects of Dietary Tannins’ Supplementation on Growth Performance, Rumen Fermentation, and Enteric Methane Emissions in Beef Cattle: A Meta-Analysis." Sustainability 13, no. 13: 7410.
The objective of this experiment was to evaluate the effects of feeding different levels concentrations of dietary calcium propionate (CaPr) on lambs’ growth performance; ruminal fermentation parameters; glucose–insulin concentration; and hypothalamic mRNA expression for neuropeptide Y (NPY), agouti-related peptide (AgRP), and proopiomelanocortin (POMC). Thirty-two individually fed lambs were randomly assigned to four treatments: (1) control diet (0 g/kg of CaPr), (2) low CaPr, (30 g/kg dry matter (DM)), (3) medium CaPr, (35 g/kg DM), and (4) high CaPr (40 g/kg DM). After 42 days of feeding, lambs were slaughtered for collecting samples of the hypothalamus. Data were analyzed as a complete randomized design, and means were separated using linear and quadratic polynomial contrast. Growth performance was not affected (p ≥ 0.11) by dietary CaPr inclusion. The ruminal concentration of total volatile fatty acids (VFA) increased linearly (p = 0.04) as dietary CaPr increased. Likewise, a linear increase in plasma insulin concentration (p = 0.03) as dietary CaPr concentration increased. The relative mRNA expression of NPY exhibited a quadratic effect (p< 0.01), but there were significant differences in the mRNA expression of AgRP and POMC (p ≥ 0.10). Dietary calcium propionate did not improve lamb growth performance in lambs feed with only forage diets. Intake was not correlated with feed intake with mRNA expression of neuropeptides.
Oswaldo Cifuentes-Lopez; Héctor Lee-Rangel; German Mendoza; Pablo Delgado-Sanchez; Luz Guerrero-Gonzalez; Alfonso Chay-Canul; Juan Pinos-Rodriguez; Rogelio Flores-Ramírez; José Roque-Jiménez; Alejandro Relling. Effects of Dietary Calcium Propionate Supplementation on Hypothalamic Neuropeptide Messenger RNA Expression and Growth Performance in Finishing Rambouillet Lambs. Life 2021, 11, 566 .
AMA StyleOswaldo Cifuentes-Lopez, Héctor Lee-Rangel, German Mendoza, Pablo Delgado-Sanchez, Luz Guerrero-Gonzalez, Alfonso Chay-Canul, Juan Pinos-Rodriguez, Rogelio Flores-Ramírez, José Roque-Jiménez, Alejandro Relling. Effects of Dietary Calcium Propionate Supplementation on Hypothalamic Neuropeptide Messenger RNA Expression and Growth Performance in Finishing Rambouillet Lambs. Life. 2021; 11 (6):566.
Chicago/Turabian StyleOswaldo Cifuentes-Lopez; Héctor Lee-Rangel; German Mendoza; Pablo Delgado-Sanchez; Luz Guerrero-Gonzalez; Alfonso Chay-Canul; Juan Pinos-Rodriguez; Rogelio Flores-Ramírez; José Roque-Jiménez; Alejandro Relling. 2021. "Effects of Dietary Calcium Propionate Supplementation on Hypothalamic Neuropeptide Messenger RNA Expression and Growth Performance in Finishing Rambouillet Lambs." Life 11, no. 6: 566.
The objective of this study was to determine the effects of the supplementation of a polyherbal mixture (HM) on the productive performance, carcass characteristics, meat quality, and the profile of blood metabolites of lambs fed a high-concentrate diet. Thirty-six male Pelibuey lambs (25.21 ± 0.96 kg BW) were housed in individual pens during a 56-day feeding period and were randomly assigned to four treatments: (1) Control (CON): Basal diet without HM; (2) HM1: CON + 1 g of HM kg−1 dry matter (DM); (3) HM2: CON + 2 g of HM kg−1 DM; and (4) HM3: CON + 3 g of HM kg−1 DM. Data were analyzed using the GLM (General Linear Model) procedure of statistical analysis system (SAS), and linear and quadratic effects were tested to evaluate the effects of the HM level. A quadratic increase was observed in the dry matter intake and in daily weight gain (p < 0.05) of lambs fed with HM2 and HM1, respectively. However, final body weight, body condition, carcass characteristics, and meat quality were similar among treatments (p > 0.05). It was observed a linear increase (p < 0.05) in the mean corpuscular hemoglobin concentration. Lymphocytes in blood from lambs supplemented with the HM1 diet increased and segmented neutrophils decreased compared to lambs receiving the CON treatment (p < 0.05). The concentration of uric acid in the blood had a linear increase (p < 0.05) and the serum creatinine level decreased (p < 0.05) as the HM dietary dose increased. In conclusion, dietary inclusion of 2 and 1 g of HM kg−1 of DM improves feed consumption and daily weight gain, respectively, without affecting carcass characteristics, meat quality, and health status on finishing lambs.
José Orzuna-Orzuna; Griselda Dorantes-Iturbide; Alejandro Lara-Bueno; Germán Mendoza-Martínez; Luis Miranda-Romero; Pedro Hernández-García. Growth Performance, Carcass Characteristics, and Blood Metabolites of Lambs Supplemented with a Polyherbal Mixture. Animals 2021, 11, 955 .
AMA StyleJosé Orzuna-Orzuna, Griselda Dorantes-Iturbide, Alejandro Lara-Bueno, Germán Mendoza-Martínez, Luis Miranda-Romero, Pedro Hernández-García. Growth Performance, Carcass Characteristics, and Blood Metabolites of Lambs Supplemented with a Polyherbal Mixture. Animals. 2021; 11 (4):955.
Chicago/Turabian StyleJosé Orzuna-Orzuna; Griselda Dorantes-Iturbide; Alejandro Lara-Bueno; Germán Mendoza-Martínez; Luis Miranda-Romero; Pedro Hernández-García. 2021. "Growth Performance, Carcass Characteristics, and Blood Metabolites of Lambs Supplemented with a Polyherbal Mixture." Animals 11, no. 4: 955.
Herbal formulas during pregnancy have been used in developing countries. Despite that, the potential effects on the mother and offspring and whether those supplements elicit epigenetic modifications is still unknown. Therefore, our objectives were to determine the effects of supplemental herbal choline source (BCho) on the percentage of 5-hmC in whole blood from gestating ewes and their offspring, as well as determining the milk quality and growth of the offspring. Thirty-five gestating Rambouillet ewes were randomly assigned to five treatments: T1, supplementation of 4 g per day (gd−1) of BCho during the first third of gestation; T2, supplementation of 4 gd−1 of BCho during the second third of gestation; T3, supplementation of 4 gd−1 of BCho during the last third of gestation; T4, supplementation of 4 gd−1 of BCho throughout gestation; and T5, no BCho supplementation (control). For the 5-hmC DNA analysis, whole blood from ewes was sampled before pregnancy and at each third of gestation (50 days). Whole blood from lambs was sampled five weeks after birth. The evaluation of the nutritional programming effects was conducted through the percentages of 5-hmC in the lambs. Compared with other treatments, the whole blood from ewes supplemented during T1 and T4 had the greatest 5-hmC percentages (p < 0.05). However, only ewes fed BCho throughout gestation (T4) maintained the greatest percentages of 5-hmC (p < 0.05). The lamb growth performance indicated that the BCho maternal supplementation did not affect the nutritional programming. However, the lambs born from ewes supplemented during T2 had the greatest 5-hmC percentages (p < 0.05). Our data suggest that ewes supplemented during T4 with BCho increase and maintain the percentages of 5-hmC in whole blood, and the offspring born from ewes supplemented with BCho during T2 maintained the greatest percentages of 5-hmC 35 d after they were born.
José Alejandro Roque-Jiménez; German David Mendoza-Martínez; Anayeli Vázquez-Valladolid; María De La Luz Guerrero-González; Rogelio Flores-Ramírez; Juan Manuel Pinos-Rodriguez; Juan J. Loor; Alejandro Enrique Relling; Héctor Aarón Lee-Rangel. Supplemental Herbal Choline Increases 5-hmC DNA on Whole Blood from Pregnant Ewes and Offspring. Animals 2020, 10, 1277 .
AMA StyleJosé Alejandro Roque-Jiménez, German David Mendoza-Martínez, Anayeli Vázquez-Valladolid, María De La Luz Guerrero-González, Rogelio Flores-Ramírez, Juan Manuel Pinos-Rodriguez, Juan J. Loor, Alejandro Enrique Relling, Héctor Aarón Lee-Rangel. Supplemental Herbal Choline Increases 5-hmC DNA on Whole Blood from Pregnant Ewes and Offspring. Animals. 2020; 10 (8):1277.
Chicago/Turabian StyleJosé Alejandro Roque-Jiménez; German David Mendoza-Martínez; Anayeli Vázquez-Valladolid; María De La Luz Guerrero-González; Rogelio Flores-Ramírez; Juan Manuel Pinos-Rodriguez; Juan J. Loor; Alejandro Enrique Relling; Héctor Aarón Lee-Rangel. 2020. "Supplemental Herbal Choline Increases 5-hmC DNA on Whole Blood from Pregnant Ewes and Offspring." Animals 10, no. 8: 1277.
An experiment was conducted to evaluate the effect of a polyherbal mixture based on Withania somnifera, Ocimum tenuiflorum, Tinospora cordifolia and Emblica officinalis, on lamb’s growth and blood metabolites. Thirty-two lambs (initial body weight BW 25 ± 4.1 kg) were randomly assigned to the treatments which consisted of the polyherbal ImmuPlus at dietary concentrations of 0, 0.1, 0.2 and 0.3% of dry matter (DM) for 60 days. There was a quadratic response to polyherbal in average daily gain (p < 0.01) and feed conversion (p < 0.05). The optimal concentration estimated by regression for maximum ADG was 0.14 ± 0.08% DM of ImmuPlus. Ruminal DM digestibility was not affected but pH was reduced linearly (p < 0.05). Ruminal N-NH3 (p < 0.01) and total VFA concentration showed a quadratic increment (p < 0.05) whereas butyrate proportion was increased linearly (p < 0.05). There was no effect in most blood metabolites related to energy metabolism, but uric acid was linearly reduced (p < 0.01) and bilirubin showed a quadratic decrement (p < 0.05). Mean corpuscular haemoglobin (p < 0.01) increased linearly (p < 0.10), lymphocytes and segmented neutrophils showed a quadratic response (p < 0.01) and platelets showed a linear reduction (linear p < 0.05). The inclusion of ImmuPlus improved the daily gain in finishing lambs and feed efficiency at 0.1% DM without altering blood chemistry and blood biometry.
Pablo Benjamín Razo Ortiz; German David Mendoza Martinéz; Gabriela Vázquez Silva; Amada Isabel Osorio Teran; José Fernando González Sánchez; Pedro Abel Hernández García; María Eugenia De La Torre Hérnandez; Enrique Espinosa Ayala. Polyherbal feed additive for lambs: effects on performance, blood biochemistry and biometry. Journal of Applied Animal Research 2020, 48, 419 -424.
AMA StylePablo Benjamín Razo Ortiz, German David Mendoza Martinéz, Gabriela Vázquez Silva, Amada Isabel Osorio Teran, José Fernando González Sánchez, Pedro Abel Hernández García, María Eugenia De La Torre Hérnandez, Enrique Espinosa Ayala. Polyherbal feed additive for lambs: effects on performance, blood biochemistry and biometry. Journal of Applied Animal Research. 2020; 48 (1):419-424.
Chicago/Turabian StylePablo Benjamín Razo Ortiz; German David Mendoza Martinéz; Gabriela Vázquez Silva; Amada Isabel Osorio Teran; José Fernando González Sánchez; Pedro Abel Hernández García; María Eugenia De La Torre Hérnandez; Enrique Espinosa Ayala. 2020. "Polyherbal feed additive for lambs: effects on performance, blood biochemistry and biometry." Journal of Applied Animal Research 48, no. 1: 419-424.
The ovicidal effect of hydro-alcoholic extracts from mature fruits and dried leaves of the Caesalpinia coriariatree, against Haemonchus contortus and H. placei was evaluated by the egg hatching inhibition test (EHIT). Secondary compounds within the extracts were identified by high performance liquid chromatography. Five extract concentrations were assessed in the inhibition tests (25.0, 12.5, 6.2, 3.1 and 1.5 mg/mL), using distilled water and Thiabendazole (0.5 mg/mL) as negative and positive controls, respectively. The results were analysed under a 2 × 2 × 6 completely randomized factorial design, and mean differences were established by the Tukey’s post hoc test. The 50% (EC50) and 90% (EC90) effective concentrations for each extract were determined using a Probit analysis.A concentration-dependent ovicidal effect of hydro-alcoholic extracts from both leaves and fruits was observed, reaching a 100% efficacy against both nematode species with the 25.0 mg/mL concentration (p < 0.05). The EC50 for the fruit and leaves extracts were established as 1.63 and 3.91 mg/mL, and as 3.98 and 11.68 mg/mL, against H. contortus and H. placei, respectively. The most important secondary compounds identified in extracts were free-condensed tannins, gallic acid and methyl-gallate.In conclusion,hydro-alcoholic extracts from C. coriaria mature fruits and dried leaves inhibit in vitro egg hatching of H. contortus and H. placei.
Rolando Rojo-Rubio; Manases González-Cortazar; Agustín Olmedo-Juárez; Alejandro Zamilpa; Javier Arece-García; German David Mendoza-Martínez; Héctor Aarón Lee-Rangel; José Fernando Vázquez-Armijo; Pedro Mendoza-De Gives. Caesalpinia coriaria fruits and leaves extracts possess in vitro ovicidal activity against Haemonchus contortus and Haemonchus placei. Veterinaria México OA 2019, 6, 1 .
AMA StyleRolando Rojo-Rubio, Manases González-Cortazar, Agustín Olmedo-Juárez, Alejandro Zamilpa, Javier Arece-García, German David Mendoza-Martínez, Héctor Aarón Lee-Rangel, José Fernando Vázquez-Armijo, Pedro Mendoza-De Gives. Caesalpinia coriaria fruits and leaves extracts possess in vitro ovicidal activity against Haemonchus contortus and Haemonchus placei. Veterinaria México OA. 2019; 6 (4):1.
Chicago/Turabian StyleRolando Rojo-Rubio; Manases González-Cortazar; Agustín Olmedo-Juárez; Alejandro Zamilpa; Javier Arece-García; German David Mendoza-Martínez; Héctor Aarón Lee-Rangel; José Fernando Vázquez-Armijo; Pedro Mendoza-De Gives. 2019. "Caesalpinia coriaria fruits and leaves extracts possess in vitro ovicidal activity against Haemonchus contortus and Haemonchus placei." Veterinaria México OA 6, no. 4: 1.
Objetivo. Evaluar el consumo, la digestibilidad y el crecimiento de cuyes alimentados con dos alimentos (A y K) formulados para esta especie y un alimento para conejos en crecimiento con suplementación de vitamina C (AC+VC). Materiales y métodos. Dieciocho cuyes (Cavia porcellus) de 248±38 g de peso vivo inicial se distribuyeron en un diseño completamente al azar con un arreglo factorial 3 × 2 (tipo de alimento y género). La ingesta de alimento, fibra detergente neutro, el aumento de peso, la conversión alimenticia, y los cambios en las variables morfométricas se midieron diariamente, mientras que la digestibilidad de la MS y FDN se determinaron al final del periodo. Resultados. No hubo diferencias en el consumo de MS (p=0.88); sin embargo, la digestibilidad de la MS fue mayor (p0.05). No hubo diferencias (p>0.01) en las variables morfométricas entre los alimentos, pero los machos fueron más grandes que las hembras (p
Francisco Trejo-Sánchez; German D. Mendoza-Martínez; Fernando Xicotencatl Plata Perez; José A Martínez-García; Oscar A. Villarreal-Espino-Barros. Crecimiento de cuyes (Cavia porcellus) con alimento para conejos y suplementación de vitamina C. Revista MVZ Córdoba 2019, 7286 -7290.
AMA StyleFrancisco Trejo-Sánchez, German D. Mendoza-Martínez, Fernando Xicotencatl Plata Perez, José A Martínez-García, Oscar A. Villarreal-Espino-Barros. Crecimiento de cuyes (Cavia porcellus) con alimento para conejos y suplementación de vitamina C. Revista MVZ Córdoba. 2019; ():7286-7290.
Chicago/Turabian StyleFrancisco Trejo-Sánchez; German D. Mendoza-Martínez; Fernando Xicotencatl Plata Perez; José A Martínez-García; Oscar A. Villarreal-Espino-Barros. 2019. "Crecimiento de cuyes (Cavia porcellus) con alimento para conejos y suplementación de vitamina C." Revista MVZ Córdoba , no. : 7286-7290.
Coccidiosis negatively impacts health and productive performance in broilers. Anticoccidial resistance has prompted alternatives to prevent and control this disease. Therefore, the objective of this study was to evaluate a plant feed additive consisting of Acacia concinna containing saponins (Peptasan®) and compare its effectiveness with salinomycin in terms of performance of broilers challenged with Eimeria. In the first experiment, 300 Ross chicks (1 day old) were randomly distributed into a negative (uninfected and untreated), and positive control group (infected and untreated), and three levels of dietary Peptasan® (500, 750 and 1000 ppm). In the second experiment, the same number of chicks were distributed in two control groups (negative and positive), two levels of Peptasan® (500 and 750 ppm) and one level of salinomycin (550 ppm). In both experiments chicks were challenged at day 21 of age with 100,000 oocysts of Eimeria acervulina, 50,000 oocysts of Eimeria maxima and 50,000 oocysts of Eimeria tenella. Dietary Peptasan® improved productive performance, reduced mortality and the number of oocysts in feces, as well as increased yellow pigmentation of the skin of challenged chickens. The plant feed additive Peptasan® containing Acacia concinna can be effectively used for preventing coccidiosis in broilers.
C Sánchez-Hernández; Ja Castañeda-Gómez Del Campo; L Trejo-Castro; Gd Mendoza-Martínez; A Gloria-Trujillo. Evaluation of a Feed Plant Additive for Coocidiosis Control in Broilers Herbals for Coccidiosis Control. Revista Brasileira de Ciência Avícola 2019, 21, 1 .
AMA StyleC Sánchez-Hernández, Ja Castañeda-Gómez Del Campo, L Trejo-Castro, Gd Mendoza-Martínez, A Gloria-Trujillo. Evaluation of a Feed Plant Additive for Coocidiosis Control in Broilers Herbals for Coccidiosis Control. Revista Brasileira de Ciência Avícola. 2019; 21 (1):1.
Chicago/Turabian StyleC Sánchez-Hernández; Ja Castañeda-Gómez Del Campo; L Trejo-Castro; Gd Mendoza-Martínez; A Gloria-Trujillo. 2019. "Evaluation of a Feed Plant Additive for Coocidiosis Control in Broilers Herbals for Coccidiosis Control." Revista Brasileira de Ciência Avícola 21, no. 1: 1.
An experiment was carried out to evaluate the effect of an herbal choline feed plant additive on the productive parameters and blood metabolites of finishing lambs. Forty male Hampshire × Suffolk lambs (initial body weight of 30.36±3.75 kg) were assigned according to a completely randomized design. Treatments consisted of dietary inclusion of the herbal additive BioCholine at 0, 3, 6, and 9 g/kg dry matter for 56 days. A linear response for herbal choline dose was observed for daily gain, final body weight, feed conversion, blood glucose, and blood phosphatidylcholine as herbal choline level was increased in the diet. Total protein, globulins, and low-density lipoproteins showed a quadratic effect, and there were no effects on intake, Longissimus dorsi area, back fat, blood cholesterol, triglycerides, high-density lipoproteins, or albumins. The inclusion of the herbal choline feed plant additive improved daily gain and feed efficiency of finishing lambs. The choline feed plant additive is a source that can be used to meet choline requirements in small ruminants, as demonstrated by blood phosphatidylcholine and lamb performance.
José Alfredo Martínez-Aispuro; German David Mendoza; José Luis Cordero-Mora; Marco Antonio Ayala-Monter; María Teresa Sánchez-Torres; José Luis Figueroa-Velasco; Gabriela Vázquez-Silva; Adrian Gloria-Trujillo. Evaluation of an herbal choline feed plant additive in lamb feedlot rations. Revista Brasileira de Zootecnia 2019, 48, 1 .
AMA StyleJosé Alfredo Martínez-Aispuro, German David Mendoza, José Luis Cordero-Mora, Marco Antonio Ayala-Monter, María Teresa Sánchez-Torres, José Luis Figueroa-Velasco, Gabriela Vázquez-Silva, Adrian Gloria-Trujillo. Evaluation of an herbal choline feed plant additive in lamb feedlot rations. Revista Brasileira de Zootecnia. 2019; 48 ():1.
Chicago/Turabian StyleJosé Alfredo Martínez-Aispuro; German David Mendoza; José Luis Cordero-Mora; Marco Antonio Ayala-Monter; María Teresa Sánchez-Torres; José Luis Figueroa-Velasco; Gabriela Vázquez-Silva; Adrian Gloria-Trujillo. 2019. "Evaluation of an herbal choline feed plant additive in lamb feedlot rations." Revista Brasileira de Zootecnia 48, no. : 1.
We evaluated current uses of wild mammals by indigenous and mestizo communities in Mexico by extracting data from 59 sources published or produced between 1987–2017, covering data from 240 localities and 3,905 questionnaires. We then calculated a Cultural Value Index (CVI) previously applied to plants to quantify resource use and assess the cultural significance of each mammal. A total of 82 species were reported, and the animals with the highest cultural importance according to their CVI (in brackets) were two species of deer (Odocoileus virginianus [18.32] and Mazama temama [10.04]), as well as the nine-banded armadillo (Dasypus novemcinctus [14.18]), white-nosed coati (Nasua narica [14.75]), collared peccary (Pecari tajaccu [11.90]), northern raccoon (Procyon lotor [11.28]) and spotted paca (Cuniculus paca [9.84]). The most common uses were for food, to reduce the damage or harm they cause, and for medicinal purposes, with O. virginianus, P. lotor, N. narica, and D. novemcinctus frequently hunted for all these reasons. Our analysis also highlighted the hunting of rarer species of national conservation concern, including commercial trading of body parts of the felids Panthera onca, Leopardus pardalis, and Leopardus wiedii. By quantifying the ethnozoological significance of wildlife to indigenous communities, indices such as CVI provide a robust measure of the extent of use and preference for particular species or taxa. This adds to the body of evidence used to develop effective regulations and laws related to harvesting and hunting, and helps promote a more sustainable and long-term approach to the use of natural resources.
Dulce María Ávila Nájera; Eduardo J Naranjo; Barbara Jane Tigar; Oscar Agustin Villarreal; Germán David Mendoza. An Evaluation of the Contemporary Uses and Cultural Significance of Mammals in Mexico. Ethnobiology Letters 2018, 9, 124 -135.
AMA StyleDulce María Ávila Nájera, Eduardo J Naranjo, Barbara Jane Tigar, Oscar Agustin Villarreal, Germán David Mendoza. An Evaluation of the Contemporary Uses and Cultural Significance of Mammals in Mexico. Ethnobiology Letters. 2018; 9 (2):124-135.
Chicago/Turabian StyleDulce María Ávila Nájera; Eduardo J Naranjo; Barbara Jane Tigar; Oscar Agustin Villarreal; Germán David Mendoza. 2018. "An Evaluation of the Contemporary Uses and Cultural Significance of Mammals in Mexico." Ethnobiology Letters 9, no. 2: 124-135.
Anfibios y reptiles son grupos de vertebrados que históricamente ha sido utilizado por comunidades rurales. En México, la multiculturalidad del país está estrechamente relacionada con la diversidad biológica con la que coexiste. El uso del Índice de Importancia Cultural (IIC) permite cuantificar el valor de las especies con diversos usos y puede ser de utilidad para enfocar estrategias de conservación, tomando en cuenta el valor cultural de las especies. El objetivo del estudio fue identificar los usos y generar un IIC de la herpetofauna, mediante un meta-análisis bibliométrico de publicaciones sobre el uso de anfibios y reptiles mexicanos. Se registraron 103 reptiles y 32 anfibios que tienen al menos un uso, el cual varió dependiendo del taxón (reptiles o anfibios, respectivamente): alimenticio (47, 10), mascota (20, 6), comercial (20, 2), ornamental (25, 1), artesanal (32, 9), mágico-religioso (32, 10), medicinal (57, 19), caza deportiva (2, 2), control de daños (48, 2), benéfico (10, 4), otros (3, 3). Rhinella marina (27.13) y Crocodylus moreletii (15.42) fueron las especies con mayor IIC. De las especies registradas, el 61 % y 31 % de reptiles y anfibios, respectivamente, están en alguna categoría de riesgo. Es necesario establecer estrategias de conservación por medio de manejo y programas educativos que promuevan alternativas de uso sustentable de los recursos, así como la conservación de espacios naturales donde las especies habitan.
Dulce M. Ávila-Nájera; Germán David Mendoza; Oscar Villarreal; Ricardo Serna-Lagunes. Uso y valor cultural de la herpetofauna en México: una revisión de las últimas dos décadas (1997-2017). ACTA ZOOLÓGICA MEXICANA (N.S.) 2018, 34, 1 -15.
AMA StyleDulce M. Ávila-Nájera, Germán David Mendoza, Oscar Villarreal, Ricardo Serna-Lagunes. Uso y valor cultural de la herpetofauna en México: una revisión de las últimas dos décadas (1997-2017). ACTA ZOOLÓGICA MEXICANA (N.S.). 2018; 34 (1):1-15.
Chicago/Turabian StyleDulce M. Ávila-Nájera; Germán David Mendoza; Oscar Villarreal; Ricardo Serna-Lagunes. 2018. "Uso y valor cultural de la herpetofauna en México: una revisión de las últimas dos décadas (1997-2017)." ACTA ZOOLÓGICA MEXICANA (N.S.) 34, no. 1: 1-15.
To evaluate phenolic compounds and whether the combination of a tanniferous fruit and soybean oil could improve the performance, meat characteristics, and fatty acid (FA) profile in lambs, an experiment was conducted over 40 days with twenty creole male lambs (23.71±3.46 kg). The lambs were allotted in a completely randomised design, with factorial arrangement 2 × 2, with the following dietary treatments: (1) control diet, (2) 2%Caesalpinia coriariaground fruit dry matter (DM), (3) 2% soybean oil DM, and (4) 2%Caesalpinia coriariafruit plus 2% soybean oil. The concentration of condensed tannins (CT) inCaesalpinia coriaceawas 21.71 g/kg DM. No interactions were detected (P>0.05) among soybean oil andCaesalpinia coriaria, and there were no differences in daily gain, intake, and feed conversion. Soybean oil reduced (P<0.05) DM digestibility (68.05 versus 59.56%). In fat from thelongissimus thoracis et lumborum(LTL) muscle, only linoleic acid presented differences (P<0.05) between treatments. The combination ofCaesalpinia coriaceafruit and soybean oil did not improve lamb performance at the included levels.
Nallely Sánchez; Germán David Mendoza; José Antonio Martínez; Pedro Abel Hernández; Luis Miguel Camacho Diaz; Hector Aarón Lee-Rangel; Anayeli Vazquez; Rogelio Flores Ramírez. Effect ofCaesalpinia coriariaFruits and Soybean Oil on Finishing Lamb Performance and Meat Characteristics. BioMed Research International 2018, 2018, 1 -6.
AMA StyleNallely Sánchez, Germán David Mendoza, José Antonio Martínez, Pedro Abel Hernández, Luis Miguel Camacho Diaz, Hector Aarón Lee-Rangel, Anayeli Vazquez, Rogelio Flores Ramírez. Effect ofCaesalpinia coriariaFruits and Soybean Oil on Finishing Lamb Performance and Meat Characteristics. BioMed Research International. 2018; 2018 ():1-6.
Chicago/Turabian StyleNallely Sánchez; Germán David Mendoza; José Antonio Martínez; Pedro Abel Hernández; Luis Miguel Camacho Diaz; Hector Aarón Lee-Rangel; Anayeli Vazquez; Rogelio Flores Ramírez. 2018. "Effect ofCaesalpinia coriariaFruits and Soybean Oil on Finishing Lamb Performance and Meat Characteristics." BioMed Research International 2018, no. : 1-6.
The objective of this study was to evaluate the effects of four levels of fish oil on lamb performance, carcass yield, ruminal fermentation, and leptin gene expression in perirenal fat. Thirty-two lambs (24.10±2.15 kg, Katahdin × Pelibuey) were used in a completely randomized experimental design. The lambs were assigned to one of four dietary treatments (n = 8 lambs/treatment), expressed as g/kg DM basis: 0 fish oil and 300 corn; 10 fish oil and 250 corn; 20 fish oil and 205 corn; and 30 fish oil and 170 corn. The lambs were weighed on consecutive days at the beginning (days 0 and 1) and at the end (days 55 and 56) of the trial. Ruminal fluid samples were collected on day 56 to evaluate the ruminal fermentation pattern. The lambs were slaughtered on day 56; perirenal adipose tissue samples were collected and the carcass yields were recorded. Volatile fatty acids, ammonia N, and leptin mRNA expression were not affected by the dietary treatments. However, the dry matter intake, average daily gain, final body weight, and the hot carcass yield showed either increased linear or quadratic responses as the proportion of fish oil increased in the ration; the estimated optimal level obtained of fish oil levels for average daily gain was 11.2±0.21 g/kg and 12.8±4.67 g/kg for feed conversion. Additionally, feed efficiency and backfat thickness had an increment, showing quadratic response as the proportion of fish oil increased in the diet. Increasing the fish oil concentration in the diet does not affect leptin messenger ribonucleic acid expression. The lamb performance can be improved with 12 g/kg fish oil in diets of finishing lambs.
Pedro Abel Hernández-García; Germán David Mendoza-Martínez; Nallely Sánchez; José Antonio Martínez García; Fernando Xicotencatl Plata-Pérez; Alejandro Lara-Bueno; Silene Mariella Ferraro. Effects of increasing dietary concentrations of fish oil on lamb performance, ruminal fermentation, and leptin gene expression in perirenal fat. Revista Brasileira de Zootecnia 2017, 46, 521 -526.
AMA StylePedro Abel Hernández-García, Germán David Mendoza-Martínez, Nallely Sánchez, José Antonio Martínez García, Fernando Xicotencatl Plata-Pérez, Alejandro Lara-Bueno, Silene Mariella Ferraro. Effects of increasing dietary concentrations of fish oil on lamb performance, ruminal fermentation, and leptin gene expression in perirenal fat. Revista Brasileira de Zootecnia. 2017; 46 (6):521-526.
Chicago/Turabian StylePedro Abel Hernández-García; Germán David Mendoza-Martínez; Nallely Sánchez; José Antonio Martínez García; Fernando Xicotencatl Plata-Pérez; Alejandro Lara-Bueno; Silene Mariella Ferraro. 2017. "Effects of increasing dietary concentrations of fish oil on lamb performance, ruminal fermentation, and leptin gene expression in perirenal fat." Revista Brasileira de Zootecnia 46, no. 6: 521-526.
An evaluation of the effects of monensin and calcium propionate on the in vitro kinetics of gas production, digestibility, carbon dioxide, and minor gas production on different days was performed using the ruminal fluid from eight Suffolk lamb donors, after receiving additives for 1, 10, and 20 days. Treatments consisted of a control ration of 40% grain; 30 mg/kg of monensin in a diet with 40% grain; 10 g/kg calcium propionate in a diet with 30% grain; and the combination of both additives in a diet with 30% grain. The gas production was measured up to 72 h of incubation and all incubation procedures were repeated three times on days 1, 10, and 20. On incubation day 20, the volume and production of methane and minor gases were measured. There was an interaction between calcium propionate and monensin for maximum gas production, in vitro dry matter digestibility (IVDMD), carbon dioxide, and minor gases. Monensin reduced gas production on days 1 and 20, whereas calcium propionate increased gas production (Vm) on day 1. The rate of gas production (s) was reduced by calcium propionate on day 1 and by the combination of additives on day 10. Lag time was reduced by monensin on day 10; however, it declined linearly with the feeding time of the additives. Monensin had no effect on IVDMD (62.29 vs. 62.24%), while calcium propionate increased the IVDMD (60.00 vs. 64.53%). The inclusion of monensin increased CO2; however, the combination of monensin and calcium propionate had no effect on CO2 production. Monensin reduced methane (25.37 vs. 20.29%) and increased CO2. None of the additives showed consistent effects on the kinetic parameters of in vitro gas production over time. The treatments with monensin and calcium propionate showed a significant reduction in methane production, with a higher fermentation efficiency since the IVDMD was increased. Both additives are a strategy to consider to reduce methane emissions without affecting the ruminal fermentation.
Amada Isabel Osorio-Teran; Germán David Mendoza-Martínez; Luis Alberto Miranda Romero; Daniel Martínez-Gomez; Pedro Abel Hernández-García; José Antonio Martínez García. Effect of calcium propionate and monensin on in vitro digestibility and gas production. Revista Brasileira de Zootecnia 2017, 46, 348 -353.
AMA StyleAmada Isabel Osorio-Teran, Germán David Mendoza-Martínez, Luis Alberto Miranda Romero, Daniel Martínez-Gomez, Pedro Abel Hernández-García, José Antonio Martínez García. Effect of calcium propionate and monensin on in vitro digestibility and gas production. Revista Brasileira de Zootecnia. 2017; 46 (4):348-353.
Chicago/Turabian StyleAmada Isabel Osorio-Teran; Germán David Mendoza-Martínez; Luis Alberto Miranda Romero; Daniel Martínez-Gomez; Pedro Abel Hernández-García; José Antonio Martínez García. 2017. "Effect of calcium propionate and monensin on in vitro digestibility and gas production." Revista Brasileira de Zootecnia 46, no. 4: 348-353.
•Supplementation in blocks increased dry matter digestibility in horses presumably by improving the fermentative capacity in the gut•Mineral supplementation did not affect gas production but slightly improved the in vitro digestibility AbstractThe effects of a mineral block for horses on in vivo digestibility and in vitro fermentability with equine fecal inoculum were evaluated. Fifty healthy horses from three groups (lactating mares n=19, working horses n=18 and maintenance horses n=13) were randomly assigned to two treatment groups (with or without the mineral block; Ca 10.0%, P 12.0%, Zn 12.1 mg/kg, Cu 2050 mg/kg, Mn 4050 mg/kg, Se 30 mg/kg and I 105 mg/kg). Dry matter digestibility was estimated with an internal marker. Samples of diet were incubated with equine fecal bacteria with varying amounts of mineral block (0, 1.1, 3.6 and 6.2 mg /g dry matter DM) to record gas production and to estimate in vitro DM digestibility. The results showed that mineral supplementation with the blocks increased in vivo DM digestibility (P < 0.01) in all groups, but there was an interaction (P < 0.01) with a greater response in the maintenance horses (55.5 vs. 78.0%) compared to lactating mares (62.8 vs. 79.6%) and working (70.3 vs. 75.1%). Block consumption was lowest in the lactating mares (12.8 g/d), intermediate in the working horses (44.6 g/d) and highest in the maintenance horses (74.2 g/d). The mineral supplementation did not affect the kinetics of gas production but tended (P = 0.10) to improve the in vitro DM digestibility (37.01 vs. 38.34%). Mineral block supplementation increased dry matter digestibility in horses. The unsupplemented control diet was deficient in several minerals, and block intake was not proportional to the mineral requirements.
Eduardo Morones; Germán David Mendoza; José Antonio Martínez; Fernando X. Plata; Claudia Palancares; Pedro Abel Hernández; Claudia Palncares. Effect of Mineral Block Supplementation on In Vivo Digestibility and In Vitro Gas Production With Equine Fecal Bacteria. Journal of Equine Veterinary Science 2017, 53, 81 -85.
AMA StyleEduardo Morones, Germán David Mendoza, José Antonio Martínez, Fernando X. Plata, Claudia Palancares, Pedro Abel Hernández, Claudia Palncares. Effect of Mineral Block Supplementation on In Vivo Digestibility and In Vitro Gas Production With Equine Fecal Bacteria. Journal of Equine Veterinary Science. 2017; 53 ():81-85.
Chicago/Turabian StyleEduardo Morones; Germán David Mendoza; José Antonio Martínez; Fernando X. Plata; Claudia Palancares; Pedro Abel Hernández; Claudia Palncares. 2017. "Effect of Mineral Block Supplementation on In Vivo Digestibility and In Vitro Gas Production With Equine Fecal Bacteria." Journal of Equine Veterinary Science 53, no. : 81-85.
The effects of four different grain composition diets of finishing lambs on lamb performance, dry matter (DM) digestibility, rumen fermentation and leptin mRNA expression were evaluated. Thirty-two Pelibuey lambs (25.35 ± 4.73 kg bodyweight) were used in a completely randomised experiment in which lambs were fed diets that contained 30%, 45%, 60% or 75% grain (DM basis). The results indicated that increasing the grain level improved the average daily weight gain, hot carcass weight, DM digestibility and feed conversion linearly (P < 0.01); however, feed intake was not affected. Ruminal pH decreased linearly as the grain content was increased (P < 0.01). Ruminal propionate concentration increased and acetate concentration declined with increased grain content (P < 0.01). Leptin mRNA expression in perirenal adipose tissue increased linearly (P < 0.05) as grain content increased. Based on these results, we conclude that increasing grain level in the diets of finishing feedlot lambs improved weight gain and feed efficiency; however, because weight gain and feed efficiency were similar at the higher grain levels, our data suggest including 60% grain in lamb finishing rations.
Pedro A. Hernández; Germán D. Mendoza; A. Castro; A. Lara; F. X. Plata; J. A. Martínez; S. Ferraro. Effects of grain level on lamb performance, ruminal metabolism and leptin mRNA expression in perirenal adipose tissue. Animal Production Science 2017, 57, 2001 -2006.
AMA StylePedro A. Hernández, Germán D. Mendoza, A. Castro, A. Lara, F. X. Plata, J. A. Martínez, S. Ferraro. Effects of grain level on lamb performance, ruminal metabolism and leptin mRNA expression in perirenal adipose tissue. Animal Production Science. 2017; 57 (10):2001-2006.
Chicago/Turabian StylePedro A. Hernández; Germán D. Mendoza; A. Castro; A. Lara; F. X. Plata; J. A. Martínez; S. Ferraro. 2017. "Effects of grain level on lamb performance, ruminal metabolism and leptin mRNA expression in perirenal adipose tissue." Animal Production Science 57, no. 10: 2001-2006.
The objective of the study reported in this Research Communication was to evaluate graded levels of ruminally protected methionine (RPM) in dairy goat rations on milk production and live weight changes during 155 d of lactation. Twenty-five primiparous dairy goats (crosses of Toggenburg, French Alpine and Saanen; 45·4 ± 1·0 kg BW) were fed a basal diet (10·10% CP, 6·13 DP and 2·34 Mcal/kg ME) of corn silage, oat hay, alfalfa hay and concentrate (80% forage, 20% concentrate). After kidding, the treatments, which consisted of four oral doses of ruminally protected methionine (RPM) at 0, 1, 2 and 3 g/d, were randomly assigned to the goats. The experiment was conducted for 110 d with measurements of milk production and composition, body weight and dry matter intake. No treatment effects were detected in milk production and composition. However, goats with RPM showed a positive live weight changes during lactation which were improved as dose was increased (linear P < 0·01) whereas goats without RPM showed weight loss during the experiment.
Erick Alonso-Mélendez; German David Mendoza; Francisco A. Castrejón-Pineda; Andrés E. Ducoing-Watty. Milk production in dairy goats supplemented with different levels of ruminally protected methionine. Journal of Dairy Research 2016, 83, 148 -150.
AMA StyleErick Alonso-Mélendez, German David Mendoza, Francisco A. Castrejón-Pineda, Andrés E. Ducoing-Watty. Milk production in dairy goats supplemented with different levels of ruminally protected methionine. Journal of Dairy Research. 2016; 83 (2):148-150.
Chicago/Turabian StyleErick Alonso-Mélendez; German David Mendoza; Francisco A. Castrejón-Pineda; Andrés E. Ducoing-Watty. 2016. "Milk production in dairy goats supplemented with different levels of ruminally protected methionine." Journal of Dairy Research 83, no. 2: 148-150.
Genealogical records of animals (studbook) are created to avoid reproduction between closely related individuals, which could cause inbreeding, particularly for such endangered species as the Panthera onca (Linnaeus, 1758). Jaguar is the largest felid in the Americas and is considered an important ecological key species. In Mexico, wild jaguar populations have been significantly reduced in recent decades, and population decline typically accompany decreases in genetic variation. There is no current census of captive jaguars in Mexico, and zoos do not follow a standardized protocol in breeding programs based on genetic studies. Here, we emphasise the importance of maintaining an adequate level of genetic variation and propose the implementation of standardised studbooks for jaguars in Mexico, mainly to avoid inbreeding. In addition, achieving the aims of studbook registration would provide a population genetic characterisation that could serve as a basis for ex situ conservation programmes.
Pilar Rueda-Zozaya; German David Mendoza; Daniel Martínez-Gómez; Octavio Monroy-Vilchis; José A. Godoy; Armando Sunny; Francisco Palomares; Cuauhtémoc Chavez; José Herrera-Haro. Genetic variability and structure of jaguar (Panthera onca) in Mexican zoos. Genetica 2016, 144, 59 -69.
AMA StylePilar Rueda-Zozaya, German David Mendoza, Daniel Martínez-Gómez, Octavio Monroy-Vilchis, José A. Godoy, Armando Sunny, Francisco Palomares, Cuauhtémoc Chavez, José Herrera-Haro. Genetic variability and structure of jaguar (Panthera onca) in Mexican zoos. Genetica. 2016; 144 (1):59-69.
Chicago/Turabian StylePilar Rueda-Zozaya; German David Mendoza; Daniel Martínez-Gómez; Octavio Monroy-Vilchis; José A. Godoy; Armando Sunny; Francisco Palomares; Cuauhtémoc Chavez; José Herrera-Haro. 2016. "Genetic variability and structure of jaguar (Panthera onca) in Mexican zoos." Genetica 144, no. 1: 59-69.
S.M. Ferraro; G.D. Mendoza; L.A. Miranda; C.G. Gutiérrez. In vitro ruminal fermentation of glycerol, propylene glycol and molasses combined with forages and their effect on glucose and insulin blood plasma concentrations after an oral drench in sheep. Animal Feed Science and Technology 2016, 213, 74 -80.
AMA StyleS.M. Ferraro, G.D. Mendoza, L.A. Miranda, C.G. Gutiérrez. In vitro ruminal fermentation of glycerol, propylene glycol and molasses combined with forages and their effect on glucose and insulin blood plasma concentrations after an oral drench in sheep. Animal Feed Science and Technology. 2016; 213 ():74-80.
Chicago/Turabian StyleS.M. Ferraro; G.D. Mendoza; L.A. Miranda; C.G. Gutiérrez. 2016. "In vitro ruminal fermentation of glycerol, propylene glycol and molasses combined with forages and their effect on glucose and insulin blood plasma concentrations after an oral drench in sheep." Animal Feed Science and Technology 213, no. : 74-80.
The objective of this study was to evaluate the effects of the addition of two levels of calcium propionate on lamb performance and some carcass characteristics. Twenty-one male Creole lambs with an initial weight of 25.3 ± 3.3 kg were randomly assigned to one of the following treatments: 0, 10, and 20 g of calcium propionate/kg of diet (dry matter basis). Intake, daily gain, feed conversion, carcass weight, and rib eye area were not affected (P < 0.05) by calcium propionate addition. Ruminal fermentation was not altered (rumen pH, volatile fatty acids concentration, and fermentation pattern), and ruminal ammonia-N presented a quadratic response (P < 0.05). In fat from the longissimus dorsi muscle, oleic acid showed a linear decrease (P < 0.05) and α-linolenic presented a linear increment (P < 0.05). The addition of 10 or 20 g of calcium propionate in diets containing 350 g/kg grain and 100 g/kg molasses did not modify the productive performance of lambs or ruminal fermentation, and minor changes were detected in long-chain fatty acid in intramuscular fat.
German David Mendoza; Juan M. Pinos-Rodríguez; Héctor A. Lee-Rangel; Pedro A. Hernández-García; Rolando Rojo Rubio; Alejandro Relling. Effects of dietary calcium propionate on growth performance and carcass characteristics of finishing lambs. Animal Production Science 2016, 56, 1194 -1198.
AMA StyleGerman David Mendoza, Juan M. Pinos-Rodríguez, Héctor A. Lee-Rangel, Pedro A. Hernández-García, Rolando Rojo Rubio, Alejandro Relling. Effects of dietary calcium propionate on growth performance and carcass characteristics of finishing lambs. Animal Production Science. 2016; 56 (7):1194-1198.
Chicago/Turabian StyleGerman David Mendoza; Juan M. Pinos-Rodríguez; Héctor A. Lee-Rangel; Pedro A. Hernández-García; Rolando Rojo Rubio; Alejandro Relling. 2016. "Effects of dietary calcium propionate on growth performance and carcass characteristics of finishing lambs." Animal Production Science 56, no. 7: 1194-1198.