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The European Common Agricultural Policy promotes the sustainable use of soils through the principle of cross-compliance that links direct payments to good farming practices. Thus, it is necessary to find sustainable alternatives to the conventional management for forage production in the Atlantic Arc dairy farms. Two alternative managements (faba bean in monoculture—FB—and faba bean–Italian ryegrass intercrop—FBIR) were cultivated with organic fertilization during two consecutive years, and compared to the conventional management (Italian ryegrass in monoculture—IR—under chemical fertilization) as winter crops. Maize was used as the summer crop to complete the rotations using organic and chemical fertilization, respectively. The forage yield of winter fodder was quantified. Soil samples and summer harvests were performed to analyse the physico-chemical and biological parameters. The best forage yield corresponded to FBIR with 9.2 t dry matter (DM) ha−1 vs. 7.2 and 5.7 t DM ha−1 for FB and IR, respectively. The soil organic matter did not show significant differences among treatments, suggesting that it may be a poor indicator of the management influence on edaphic quality in the short term. Biological indicators were more sensitive and faster to differentiate among managements than chemical indicators. Earthworm abundance was higher in FB and FBIR than IR (p < 0.001), and consequently, soil infiltration was improved with the alternative management (13.90 vs. 2.08 and 0.90 min for IR, FB and FBIR, respectively, p < 0.01). As a result, the soil health diagnosis of the agroecosystem was better for alternative management.
Silvia Baizán; Fernando Vicente; Adela Martínez-Fernández. Management Influence on the Quality of an Agricultural Soil Destined for Forage Production and Evaluated by Physico-Chemical and Biological Indicators. Sustainability 2021, 13, 5159 .
AMA StyleSilvia Baizán, Fernando Vicente, Adela Martínez-Fernández. Management Influence on the Quality of an Agricultural Soil Destined for Forage Production and Evaluated by Physico-Chemical and Biological Indicators. Sustainability. 2021; 13 (9):5159.
Chicago/Turabian StyleSilvia Baizán; Fernando Vicente; Adela Martínez-Fernández. 2021. "Management Influence on the Quality of an Agricultural Soil Destined for Forage Production and Evaluated by Physico-Chemical and Biological Indicators." Sustainability 13, no. 9: 5159.
The optimization of milk production includes a rational use of forages, respect for the environment and offers the best quality to consumers. Milk production based on grass and forages produces healthier milk and it is widely spread throughout the Atlantic arc to maximize milk yield per hectare. However, the mode of offering the grass can have a major influence on milk composition. The aim of this study was to evaluate the effect of grass supply mode (grazing, zero-grazing or ensiling) on dairy cows’ performance, with particular reference to fatty acids and fat-soluble antioxidants concentration. A three by three Latin square experiment was performed with 18 dairy cows. Experimental treatments consisted of exclusive feeding with grass silage and zero-grazing, both offered ad libitum indoors, or grazing for 24 h. The results showed that grazing cows had a higher dry matter intake and greater milk yield than cows feeding on grass silage and zero-grazing, as well as higher concentrations of protein, lactose, nonfat-solids and urea in milk than housed cows. Milk fat from grazing cows had a higher proportion of unsaturated fatty acids than from cows feeding on grass silage and zero-grazing, with significant differences in the proportion of vaccenic and rumenic acids. The 18:1 trans-11 to 18:1 trans-10 ratio is proposed as biomarker to identify the milk produced from the management system of grazing cattle. Milk from grazing cows had a greater proportion of lutein than cows eating grass silage, with the zero-grazing system having intermediate values. In conclusion, the mode of grass supply affects fatty acid and antioxidant profiles of milk.
Senén De La Torre-Santos; Luis Royo; Adela Martínez-Fernández; Cristina Chocarro; Fernando Vicente. The Mode of Grass Supply to Dairy Cows Impacts on Fatty Acid and Antioxidant Profile of Milk. Foods 2020, 9, 1256 .
AMA StyleSenén De La Torre-Santos, Luis Royo, Adela Martínez-Fernández, Cristina Chocarro, Fernando Vicente. The Mode of Grass Supply to Dairy Cows Impacts on Fatty Acid and Antioxidant Profile of Milk. Foods. 2020; 9 (9):1256.
Chicago/Turabian StyleSenén De La Torre-Santos; Luis Royo; Adela Martínez-Fernández; Cristina Chocarro; Fernando Vicente. 2020. "The Mode of Grass Supply to Dairy Cows Impacts on Fatty Acid and Antioxidant Profile of Milk." Foods 9, no. 9: 1256.
Soil fertility building measures should be explored at the short and long-term for an adequate evaluation of their impact on sustaining yields and of its environmental consequences in crop rotations under organic farming. For such a purpose, process-based crop models are potential useful tools to complement and upscale field observations under a range of soil and climatic conditions. Organic rotations differ in soil fertility dynamics in comparison to conventional farming but very few modelling studies have explicitly considered this specific situation. Here, we evaluate the FASSET model to predict the effects of different fertility management options in organic crop rotations on dry matter (DM) and nitrogen (N) yield, and soil N dynamics, including N2O emissions. For that, we used data from seven short and long-term field experiments in different agro-climatic environments in Europe (Norway, Denmark, Poland, Switzerland, Italy and Spain) including climate, soil and management data. Soil fertility building measures covered fertilization type, green manures, cover crops, tillage, crop rotation composition and management (organic or conventional). Model performance was evaluated by comparing observed and simulated values of crop DM and N yield, soil mineral N and nitrous oxide (N2O) emissions using five complementary statistical indices. The model closely reproduced most observed DM and N yield trends and effects of soil fertility building measures in arable crops, particularly in cereals. Contrary, yields of grass-clover, especially N, were generally reproduced with low degree of accuracy. Model performance for simulating soil mineral N depended on site and the availability of soil and management information. Although high uncertainty was associated to the simulation of soil N dynamics, differences of cumulative N2O emissions between fertility building measures were reflected in model outputs. Aspects for modelling improvement include cover crop growth and decomposition, biological N fixation (BNF) or weed and pest soil-crop interactions. It is concluded that FASSET can be successfully used to investigate the impact of fertilization type, green manures, tillage and management (organic or conventional) on crop productivity and to a certain extent on soil N dynamics including soil N2O emissions at different soils and climates in organic farming in Europe.
J. Doltra; P. Gallejones; Jørgen E. Olesen; Sissel Hansen; R.B. Frøseth; M. Krauss; Jaroslaw Stalenga; K. Jończyk; Adela Martinez Fernandez; G.C. Pacini. Simulating soil fertility management effects on crop yield and soil nitrogen dynamics in field trials under organic farming in Europe. Field Crops Research 2019, 233, 1 -11.
AMA StyleJ. Doltra, P. Gallejones, Jørgen E. Olesen, Sissel Hansen, R.B. Frøseth, M. Krauss, Jaroslaw Stalenga, K. Jończyk, Adela Martinez Fernandez, G.C. Pacini. Simulating soil fertility management effects on crop yield and soil nitrogen dynamics in field trials under organic farming in Europe. Field Crops Research. 2019; 233 ():1-11.
Chicago/Turabian StyleJ. Doltra; P. Gallejones; Jørgen E. Olesen; Sissel Hansen; R.B. Frøseth; M. Krauss; Jaroslaw Stalenga; K. Jończyk; Adela Martinez Fernandez; G.C. Pacini. 2019. "Simulating soil fertility management effects on crop yield and soil nitrogen dynamics in field trials under organic farming in Europe." Field Crops Research 233, no. : 1-11.
Silvia Baizán; Fernando Vicente; Naouel Barhoumi; Isabel Feito; Lucía Rodríguez; Adela Martínez-Fernández. Efecto de la inclusión de ensilado de haba forrajera en la dieta de vacuno lechero sobre la ingestión voluntaria y la producción y composición de la leche. Informacion Tecnica Economica Agraria 2018, 114, 1 .
AMA StyleSilvia Baizán, Fernando Vicente, Naouel Barhoumi, Isabel Feito, Lucía Rodríguez, Adela Martínez-Fernández. Efecto de la inclusión de ensilado de haba forrajera en la dieta de vacuno lechero sobre la ingestión voluntaria y la producción y composición de la leche. Informacion Tecnica Economica Agraria. 2018; 114 (4):1.
Chicago/Turabian StyleSilvia Baizán; Fernando Vicente; Naouel Barhoumi; Isabel Feito; Lucía Rodríguez; Adela Martínez-Fernández. 2018. "Efecto de la inclusión de ensilado de haba forrajera en la dieta de vacuno lechero sobre la ingestión voluntaria y la producción y composición de la leche." Informacion Tecnica Economica Agraria 114, no. 4: 1.
This study evaluated the effect of organic or chemical fertilization of maize on cow performance, economic outcomes, and greenhouse gas emission. Each type of maize silage according its different fertilization was used in two rations offered to two different groups of nine Friesian-Holstein cows throughout 4 months. The production cost of the maize silage was 8.8% lower for organic than for chemical fertilization. Both silages had similar nutritive value, except a higher concentration of starch in maize with organic fertilization, which allowed a reduction in the proportion of concentrate in the ration, saving 25.3 eurocents per cow in the daily ration, generating a positive balance of 21.8 eurocents per cow and day. The milk yield and composition were unaffected depending on the type of fertilization, whereas the estimation of CH4 and N2O emissions with chemical fertilization was higher than emissions with organic fertilization. As a result, it is possible to increase the sustainability and profitability of dairy production with reuse and recycling of manure.
José D. Jiménez-Calderón; Adela Martinez Fernandez; Fernando Prospero-Bernal; José Velarde-Guillén; Carlos M. Arriaga-Jordán; Fernando Vicente. Using manure as fertilizer for maize could improve sustainability of milk production. Spanish Journal of Agricultural Research 2018, 16, e0601 .
AMA StyleJosé D. Jiménez-Calderón, Adela Martinez Fernandez, Fernando Prospero-Bernal, José Velarde-Guillén, Carlos M. Arriaga-Jordán, Fernando Vicente. Using manure as fertilizer for maize could improve sustainability of milk production. Spanish Journal of Agricultural Research. 2018; 16 (1):e0601.
Chicago/Turabian StyleJosé D. Jiménez-Calderón; Adela Martinez Fernandez; Fernando Prospero-Bernal; José Velarde-Guillén; Carlos M. Arriaga-Jordán; Fernando Vicente. 2018. "Using manure as fertilizer for maize could improve sustainability of milk production." Spanish Journal of Agricultural Research 16, no. 1: e0601.
Milk fatty acid (FA) profiles of lactating Holstein dairy cows were determined to evaluate the effects of parity (primiparous or multiparous) and the grazing time (0, 6 and 12 h), complementary to a total mixed ration, in a 2 × 3 factorial design. The interaction of parity with grazing time did not affect milk production and protein content; however, dry matter intake of herbage, total dry matter intake and milk fat content were affected by the interaction (P < 0.05). Both factors affected the milk concentration of monounsaturated FAs. The 18 : 3 cis9 cis12, 18 : 2 cis9 trans11, and 18 : 3 cis9 cis12 cis15 concentrations in milk were higher (P < 0.05) in primiparous cows. Milk 18 : 2 cis9 trans11 concentration in primiparous cows with 12 h grazing (1.17 g/100 g FA) was 44% and 57% higher than with 6 h and 0 h grazing (0.66 and 0.50 g/100 g FA, respectively). Similar pattern was observed for 18 : 3 cis9 cis12 cis15. The milk 18 : 1 trans11 concentration was higher (P < 0.05) with 6 h and 12 h grazing than without grazing. In conclusion, the parity would appear to mainly affect the proportion of short-chain FAs, and had an important influence on the proportions of 18 : 2 cis9 trans11, and 18 : 3 cis9 cis12 cis15. These FAs and also 18 : 1 trans11 were modified by grazing time.
E. Morales-Almaráz; B. De La Roza-Delgado; A. Soldado; A. Martínez-Fernández; A. González; I. A. Domínguez-Vara; Fernando Vicente. Parity and grazing-time effects on milk fatty acid profile in dairy cows. Animal Production Science 2018, 58, 1233 .
AMA StyleE. Morales-Almaráz, B. De La Roza-Delgado, A. Soldado, A. Martínez-Fernández, A. González, I. A. Domínguez-Vara, Fernando Vicente. Parity and grazing-time effects on milk fatty acid profile in dairy cows. Animal Production Science. 2018; 58 (7):1233.
Chicago/Turabian StyleE. Morales-Almaráz; B. De La Roza-Delgado; A. Soldado; A. Martínez-Fernández; A. González; I. A. Domínguez-Vara; Fernando Vicente. 2018. "Parity and grazing-time effects on milk fatty acid profile in dairy cows." Animal Production Science 58, no. 7: 1233.
Carme Santiago; Fernando Vicente; José Daniel Jiménez-Calderón; Adela Martínez-Fernández. Caracterización de los actuales modelos de alimentación para la producción de leche de vaca en Asturias y su influencia sobre la producción de la leche. Informacion Tecnica Economica Agraria 2017, 113, 1 .
AMA StyleCarme Santiago, Fernando Vicente, José Daniel Jiménez-Calderón, Adela Martínez-Fernández. Caracterización de los actuales modelos de alimentación para la producción de leche de vaca en Asturias y su influencia sobre la producción de la leche. Informacion Tecnica Economica Agraria. 2017; 113 (4):1.
Chicago/Turabian StyleCarme Santiago; Fernando Vicente; José Daniel Jiménez-Calderón; Adela Martínez-Fernández. 2017. "Caracterización de los actuales modelos de alimentación para la producción de leche de vaca en Asturias y su influencia sobre la producción de la leche." Informacion Tecnica Economica Agraria 113, no. 4: 1.
In order to combine the ability of legumes to fix atmospheric nitrogen and the cruciferous capacities to mobilize soil nutrients and herbicide action, the aim of this work was to evaluate an alternative winter intercrop (faba bean-rapeseed) as a replacement of Italian ryegrass culture in a rotational system with maize as summer crop. For this purpose, two adjacent plots were used during three agronomic years (2011–2012, 2012–2013 and 2013–2014) to evaluate the agronomic performance through the forage production, nutritional composition of forage and silage, and the effects on soil fertility. The Italian ryegrass was cultivated under conventional management: using chemical fertilization and recommended dosages of herbicides. The faba bean-rapeseed intercrop was cultivated under an alternative management: organic fertilization and less herbicide supply. The intercrop provides higher forage yield per hectare than Italian ryegrass, with greater protein (kg ha−1) and similar energy (GJ ha−1) yields. The intercrop allows reducing the inputs of chemical fertilization and herbicides, and it has a positive effect on the balance of soil nutrients, especially increasing the potassium, calcium and magnesium contents. The results show that faba bean-rapeseed intercrop could be an alternative to the Italian ryegrass as winter crop.
José D. Jiménez-Calderón; Adela Martínez-Fernández; Mohammed Benaouda; Fernando Vicente. A winter intercrop of faba bean and rapeseed for silage as a substitute for Italian ryegrass in rotation with maize. Archives of Agronomy and Soil Science 2017, 64, 983 -993.
AMA StyleJosé D. Jiménez-Calderón, Adela Martínez-Fernández, Mohammed Benaouda, Fernando Vicente. A winter intercrop of faba bean and rapeseed for silage as a substitute for Italian ryegrass in rotation with maize. Archives of Agronomy and Soil Science. 2017; 64 (7):983-993.
Chicago/Turabian StyleJosé D. Jiménez-Calderón; Adela Martínez-Fernández; Mohammed Benaouda; Fernando Vicente. 2017. "A winter intercrop of faba bean and rapeseed for silage as a substitute for Italian ryegrass in rotation with maize." Archives of Agronomy and Soil Science 64, no. 7: 983-993.
This Research Paper addresses the hypothesis that is possible to identify the type of feed used for dairy cows by means of the analysis of milk composition and the fatty acid profile of milk fat. Sixteen dairy farms were monitored during 1 year with quarterly visits between summer 2014 and spring 2015. Rations varied throughout the year due to annual dynamic change of forage production, forage rotation, variation of nutrient requirements according to physiological state of the animal, etc. The ingredients of the rations were analysed by cluster identifying five feeding systems based on the main ingredient of the diet: grazing, maize silage, grass silage, dry forage and concentrate. Milk composition could explain up to 91·3% of the total variability among feeding systems, while fatty acid profile could explain only up to 61·2% of total variability. However, when the sum of types of fatty acids and their ratios are taken, up to 93·5% of total variability could be explained. The maize silage system had the greatest milk yield, protein, solid non-fat and urea proportions, as well as the highest proportion of saturated fatty acid and lowest concentration of trans11 18 : 1, cis9 18 : 1 and 18 : 3 n3. Principal component analysis distinguishes the maize silage system from other feeding systems, both from milk composition and milk fatty acid profile. Concentrate system overlapped partially with the grazing, grass silage and dry forage systems. The latter systems had the highest concentrations of cis9 18 : 1, trans11 18 : 1 and 18 : 3, but there was no clear differentiation among them.
Fernando Vicente; Carme Santiago; José D Jiménez-Calderón; Adela Martinez Fernandez. Capacity of milk composition to identify the feeding system used to feed dairy cows. Journal of Dairy Research 2017, 84, 254 -263.
AMA StyleFernando Vicente, Carme Santiago, José D Jiménez-Calderón, Adela Martinez Fernandez. Capacity of milk composition to identify the feeding system used to feed dairy cows. Journal of Dairy Research. 2017; 84 (3):254-263.
Chicago/Turabian StyleFernando Vicente; Carme Santiago; José D Jiménez-Calderón; Adela Martinez Fernandez. 2017. "Capacity of milk composition to identify the feeding system used to feed dairy cows." Journal of Dairy Research 84, no. 3: 254-263.
Significant advances achieved in different sensor technologies and computer processing data have made possible to respond the needs of livestock sector, providing precise and rapid information on feed composition, being an alternative to real time quality control on compound feed the use of handheld NIRS sensors. This work aimed to evaluate two hand-held portable NIR spectrophotometers for on-site and real time analysis of nutritive parameters in raw compound feed: Phazir 1624 Polychromix Inc (PhIR) and MicroNIR 1700 by JDSU (MICRO). For computing data, different combinations of pre-treatments and multivariate statistical methods have been assayed to extract the valuable information of spectra data and to develop appropriate calibrations. The calibration models displayed greatest predictive capacity for Crude Protein (CP), Crude Fiber (CF) and Starch (STCH) and the determination coefficients of cross validation were 0.90-0.88 for CP, 0.85-0.91 for CF, 0.89-0.88 and 0.89-0.91 for STCH using PhIR and MICRO instruments respectively. Dry Matter showed the lowest determination coefficients of cross validation 0.67-0.73. Accuracy achieved 99-101% for both NIRS instruments and no differences were found when applying t-test comparing reference and predicted data. Results obtained with both instruments were compared by using standard deviation and not significant differences were observed at the 5% level. Results so far have demonstrated the potential of these handheld NIRS instruments proposed here to estimate the individual compound feeds composition changes at farms level instantly, time avoiding the disadvantage of moving the samples to the lab.
Sagrario Modroño; Ana Soldado; Adela Martinez Fernandez; Begoña de la Roza-Delgado. Handheld NIRS sensors for routine compound feed quality control: Real time analysis and field monitoring. Talanta 2017, 162, 597 -603.
AMA StyleSagrario Modroño, Ana Soldado, Adela Martinez Fernandez, Begoña de la Roza-Delgado. Handheld NIRS sensors for routine compound feed quality control: Real time analysis and field monitoring. Talanta. 2017; 162 ():597-603.
Chicago/Turabian StyleSagrario Modroño; Ana Soldado; Adela Martinez Fernandez; Begoña de la Roza-Delgado. 2017. "Handheld NIRS sensors for routine compound feed quality control: Real time analysis and field monitoring." Talanta 162, no. : 597-603.
A total of 220 faecal pig and poultry samples, collected from different experimental trials were employed with the aim to demonstrate the suitability of Near Infrared Reflectance Spectroscopy (NIRS) technology for estimation of gross calorific value on faeces as output products in energy balances studies. NIR spectra from dried and grounded faeces samples were analyzed using a Foss NIRSystem 6500 instrument, scanning over the wavelength range 400-2500 nm. Validation studies for quantitative analytical models were carried out to estimate the relevance of method performance associated to reference values to obtain an appropriate, accuracy and precision. The results for prediction of gross calorific value (GCV) of NIRS calibrations obtained for individual species showed high correlation coefficients comparing chemical analysis and NIRS predictions, ranged from 0.92 to 0.97 for poultry and pig. For external validation, the ratio between the standard error of cross validation (SECV) and the standard error of prediction (SEP) varied between 0.73 and 0.86 for poultry and pig respectively, indicating a sufficiently precision of calibrations. In addition a global model to estimate GCV in both species was developed and externally validated. It showed correlation coefficients of 0.99 for calibration, 0.98 for cross-validation and 0.97 for external validation. Finally, relative uncertainty was calculated for NIRS developed prediction models with the final value when applying individual NIRS species model of 1.3% and 1.5% for NIRS global prediction. This study suggests that NIRS is a suitable and accurate method for the determination of GCV in faeces, decreasing cost, timeless and for convenient handling of unpleasant samples.
Begoña de la Roza-Delgado; Sagrario Modroño; Fernando Vicente; Adela Martinez Fernandez; Ana Soldado. Suitability of faecal near-infrared reflectance spectroscopy (NIRS) predictions for estimating gross calorific value. Spanish Journal of Agricultural Research 2015, 13, e0203 .
AMA StyleBegoña de la Roza-Delgado, Sagrario Modroño, Fernando Vicente, Adela Martinez Fernandez, Ana Soldado. Suitability of faecal near-infrared reflectance spectroscopy (NIRS) predictions for estimating gross calorific value. Spanish Journal of Agricultural Research. 2015; 13 (1):e0203.
Chicago/Turabian StyleBegoña de la Roza-Delgado; Sagrario Modroño; Fernando Vicente; Adela Martinez Fernandez; Ana Soldado. 2015. "Suitability of faecal near-infrared reflectance spectroscopy (NIRS) predictions for estimating gross calorific value." Spanish Journal of Agricultural Research 13, no. 1: e0203.
This study was carried out to ascertain the ensiling capacity of fresh banana packaging industries by-products and the chemical composition and fermentative characteristics of the silage. Ensilability parameters were analysed in five different combinations [100% green banana (GB), 100% bunch (b), 30% GB–70% b, 50% GB–50% b and 100% ripe banana (RB)]. Subsequently, according to ensilability results, three combinations were selected [100% GB, 50% GB–50% b, 50% GB–50% b + additives, 10% molasses and 7% beet pulp] in order to assess the quality and stability over time of the experimental banana microsilages. The 50% GB–50% b combination showed the acceptable silage characteristics but requires certain additives to improve the fermentative process. The combination with better results, when assessed for quality and stability during the preservation process, was 50% GB–50% b + additives allowing to increase the initial dry matter (DM) and soluble sugars. This combination showed a good aptitude for ensilage, having a pleasant smell and good visual characteristics. The banana by-product showed moderate silage DM (20–30%) and organic matter (85–94%) content and low protein and fibre values. The chemical composition did not vary significantly along the conservation process. The three combinations of banana by-product silage studied presented a moderate DM content and a low protein value, with lower values in the 50% GB–50% b.
S. Álvarez; P. Mendez; A. Martínez-Fernández. Fermentative and nutritive quality of banana by-product silage for goats. Journal of Applied Animal Research 2014, 43, 1 -6.
AMA StyleS. Álvarez, P. Mendez, A. Martínez-Fernández. Fermentative and nutritive quality of banana by-product silage for goats. Journal of Applied Animal Research. 2014; 43 (4):1-6.
Chicago/Turabian StyleS. Álvarez; P. Mendez; A. Martínez-Fernández. 2014. "Fermentative and nutritive quality of banana by-product silage for goats." Journal of Applied Animal Research 43, no. 4: 1-6.
The possibilities of using high quality pastures in conjunction with total mixed ration (TMR) during the grazing season have been examined. An experiment with sixteen Holstein cows blocked and randomly assigned to four treatments in a factorial arrangement was conducted in order to evaluate the influence of grazing time of day (day or night) and type of silage (maize or Italian ryegrass) included in the TMR of dairy cows grazing 12 h daily on milk yield, composition and fatty acid profile. The silage type had no effect on the dry matter intake, milk yield and fat and protein proportions. However, cows grazing during the night ate more grass than cows grazing during the day (8·53 vs. 5·65 kg DM/d; Pn-6 (2·37 vs. 2·12 g/100 g FA respectively, Pvs. 1·74 g/100 g FA respectively, P
Martha Hernández-Ortega; Adela Martinez Fernandez; Ana Soldado; Amelia González; Carlos M. Arriaga-Jordán; Alejandro Argamentería; Begoña de la Roza-Delgado; Fernando Vicente. Effect of total mixed ration composition and daily grazing pattern on milk production, composition and fatty acids profile of dairy cows. Journal of Dairy Research 2014, 81, 471 -478.
AMA StyleMartha Hernández-Ortega, Adela Martinez Fernandez, Ana Soldado, Amelia González, Carlos M. Arriaga-Jordán, Alejandro Argamentería, Begoña de la Roza-Delgado, Fernando Vicente. Effect of total mixed ration composition and daily grazing pattern on milk production, composition and fatty acids profile of dairy cows. Journal of Dairy Research. 2014; 81 (4):471-478.
Chicago/Turabian StyleMartha Hernández-Ortega; Adela Martinez Fernandez; Ana Soldado; Amelia González; Carlos M. Arriaga-Jordán; Alejandro Argamentería; Begoña de la Roza-Delgado; Fernando Vicente. 2014. "Effect of total mixed ration composition and daily grazing pattern on milk production, composition and fatty acids profile of dairy cows." Journal of Dairy Research 81, no. 4: 471-478.
Forage ensilability mainly depends on dry matter (DM), water soluble carbohydrates (WSC) and buffer capacity (BC) values at harvest time. According to these parameters, and based on a collection of 208 forages of known ensilability characteristics including short and long term meadows for grazing, italian ryegrass, maize, triticale, soybean, faba bean crops, and samples coming from cereal-legume associations, the objective of this study has been to define a quantitative ensilability index (EI) based on a relationship between DM, WSC and BC contents at harvest date, adapted to the characteristics of fodder from wet temperate areas. For this purpose, a discriminant procedure was used to define this EI based on a linear combination of DM, WSC and BC of forages at harvest time. The quantitative calculated indexes distinguish five successive ranges of ensilability: high ensilability (EI>+28), medium high ensilability (+9
Adela Martinez Fernandez; Ana Soldado; Begoña de la Roza-Delgado; Fernando Vicente; M. A. Gonzalez-Arrojo; A. Argamenteria. Modelling a quantitative ensilability index adapted to forages from wet temperate areas. Spanish Journal of Agricultural Research 2013, 11, 455 .
AMA StyleAdela Martinez Fernandez, Ana Soldado, Begoña de la Roza-Delgado, Fernando Vicente, M. A. Gonzalez-Arrojo, A. Argamenteria. Modelling a quantitative ensilability index adapted to forages from wet temperate areas. Spanish Journal of Agricultural Research. 2013; 11 (2):455.
Chicago/Turabian StyleAdela Martinez Fernandez; Ana Soldado; Begoña de la Roza-Delgado; Fernando Vicente; M. A. Gonzalez-Arrojo; A. Argamenteria. 2013. "Modelling a quantitative ensilability index adapted to forages from wet temperate areas." Spanish Journal of Agricultural Research 11, no. 2: 455.
Sixty-one intact meat samples from Asturcelta autochthonous swine breed were scanned in the slaughterhouse in reflectance mode. A handheld microelectromechanical system digital transform (Phazir1624, Polychromix Inc.), with a window sampling area of 0.8 × 1 cm and wavelengths ranging from 1,600 to 2,400 nm, was used. With the spectra database recorded were developed different chemometrical models assaying first and second derivatives as math treatment and standard normal variate (SNV) and multiplicative scatter correction for minimizing scattering effect. The greatest predictive capacity was achieved after applying SNV and first derivative for moisture, intramuscular fat (IMF) content, and pH parameters and second derivative for CIE L*, a*, b* colorimetric values, and the Warner–Bratzler force (instrumental texture). The coefficients of determination for calibration ranged from 0.63 to 0.89. The ratio between the standard error of the laboratory and the standard error of calibration ranged from 0.8 to 2.5 for all parameters (1.7 on average) with the exception of b and pH with ratios of 3.5 and 4.1, respectively. The statistical values obtained for the models developed to estimate IMF, CIE L*, a*, b*, moisture, and pH, displayed acceptable predictive capacity. For instrumental texture, the model could be able to discriminate among tender, medium, and hard meat in carcasses for characterization slaughter purposes.
Begoña De La Roza-Delgado; Ana Soldado; Antonio F. Gomes De Faria Oliveira; Adela Martinez Fernandez; Alejandro Argamentería. Assessing the Value of a Portable Near Infrared Spectroscopy Sensor for Predicting Pork Meat Quality Traits of “Asturcelta Autochthonous Swine Breed”. Food Analytical Methods 2013, 7, 151 -156.
AMA StyleBegoña De La Roza-Delgado, Ana Soldado, Antonio F. Gomes De Faria Oliveira, Adela Martinez Fernandez, Alejandro Argamentería. Assessing the Value of a Portable Near Infrared Spectroscopy Sensor for Predicting Pork Meat Quality Traits of “Asturcelta Autochthonous Swine Breed”. Food Analytical Methods. 2013; 7 (1):151-156.
Chicago/Turabian StyleBegoña De La Roza-Delgado; Ana Soldado; Antonio F. Gomes De Faria Oliveira; Adela Martinez Fernandez; Alejandro Argamentería. 2013. "Assessing the Value of a Portable Near Infrared Spectroscopy Sensor for Predicting Pork Meat Quality Traits of “Asturcelta Autochthonous Swine Breed”." Food Analytical Methods 7, no. 1: 151-156.
For developing qualitative or quantitative applications with spectroscopic data, such as near infrared spectroscopy (NIRS), different methodologies have been proposed in the mathematical statistical and computer science literature. Useful chemometrical alternatives have emerged, such as support vector machines (SVM), widely used for modeling multivariate and non-linear systems. These methods are usually compared using the classification performance and the success of results. The aim of the present work was to develop and validate a robust, accurate and fast discriminant methodology based on NIRS data to detect presence of animal meals in feedstuffs. A linear method, modified partial least square (PLS) analysis and one non-linear method (SVM) were studied. Results showed that modified PLS model allows obtaining coefficients of determination for cross validation around 0.97. Applying SVM strategy no false negatives were detected during training step. With both strategies the lowest percentage of misclassified samples on external validation was achieved with SVM, 0% with certified standard samples containing from 0.05% to 4% of animal meals. These results show SVM strategy as a robust method of classification for detecting animal meals in feedstuffs using NIRS methodology.
A. Soldado; J. R. Quevedo; A. Bahamonde; S. Modroño; A. Martínez-Fernández; F. Vicente; D. Pérez-Marín; A. Garrido-Varo; J. E. Guerrero; B. De La Roza-Delgado. Validation of two discriminant strategies applied to NIRS data spectra for detection of animal meals in feedstuffs. Spanish Journal of Agricultural Research 2011, 9, 41 .
AMA StyleA. Soldado, J. R. Quevedo, A. Bahamonde, S. Modroño, A. Martínez-Fernández, F. Vicente, D. Pérez-Marín, A. Garrido-Varo, J. E. Guerrero, B. De La Roza-Delgado. Validation of two discriminant strategies applied to NIRS data spectra for detection of animal meals in feedstuffs. Spanish Journal of Agricultural Research. 2011; 9 (1):41.
Chicago/Turabian StyleA. Soldado; J. R. Quevedo; A. Bahamonde; S. Modroño; A. Martínez-Fernández; F. Vicente; D. Pérez-Marín; A. Garrido-Varo; J. E. Guerrero; B. De La Roza-Delgado. 2011. "Validation of two discriminant strategies applied to NIRS data spectra for detection of animal meals in feedstuffs." Spanish Journal of Agricultural Research 9, no. 1: 41.
Grazing cows could produce milk with a higher proportion of polyunsaturated fatty acids, which is beneficial to human health, compared with non-grazing cows, though grazing alone could compromise milk production. Under oceanic climate conditions, a study involving 15 dairy cows, fed total mixed ration (TMR) ad libitum in combination with different grazing times of 12 h (TMR12), 6 h (TMR06) and zero grazing time (TMR00) with the aim to evaluate different strategies on the fatty acids profile of milk and milk production. No differences were seen between the treatments with respect to milk yield (34·4±6·3 kg/d) or milk protein content (30·4±1·8 g/kg). The milk produced by the TMR12 cows had less total fat (36·2 vs. 38·2 g/kg) and saturated fatty acid (FA, 69·39 vs. 71·44 g/100 g FA) than that produced by the TMR00 cows. The concentration of vaccenic acid in the TMR06 and TMR12 milk was twice that of the TMR00 milk (4·22, 4·09 and 2·26 g/100 g FA respectively). Linear increases in conjugated linoleic (CLA) and linolenic acids were observed with increasing grazing time. Pasture was an important source of FA especially C18:3 for TMR06 and TMR12 cows. Under oceanic climatic conditions, the grazing of dairy cows as a complement to feeding with TMR can improve the FA profile of milk and increase its CLA content.
Ernesto Morales-Almaraz; Ana Soldado; Amelia González; Adela Martinez Fernandez; Ignacio Arturo Dominguez Vara; Begoña de la Roza-Delgado; Fernando Vicente. Improving the fatty acid profile of dairy cow milk by combining grazing with feeding of total mixed ration. Journal of Dairy Research 2010, 77, 225 -230.
AMA StyleErnesto Morales-Almaraz, Ana Soldado, Amelia González, Adela Martinez Fernandez, Ignacio Arturo Dominguez Vara, Begoña de la Roza-Delgado, Fernando Vicente. Improving the fatty acid profile of dairy cow milk by combining grazing with feeding of total mixed ration. Journal of Dairy Research. 2010; 77 (2):225-230.
Chicago/Turabian StyleErnesto Morales-Almaraz; Ana Soldado; Amelia González; Adela Martinez Fernandez; Ignacio Arturo Dominguez Vara; Begoña de la Roza-Delgado; Fernando Vicente. 2010. "Improving the fatty acid profile of dairy cow milk by combining grazing with feeding of total mixed ration." Journal of Dairy Research 77, no. 2: 225-230.
V. Fernández-Ibañez; A. Soldado; A. Martínez-Fernández; B. de la Roza-Delgado. Application of near infrared spectroscopy for rapid detection of aflatoxin B1 in maize and barley as analytical quality assessment. Food Chemistry 2009, 113, 629 -634.
AMA StyleV. Fernández-Ibañez, A. Soldado, A. Martínez-Fernández, B. de la Roza-Delgado. Application of near infrared spectroscopy for rapid detection of aflatoxin B1 in maize and barley as analytical quality assessment. Food Chemistry. 2009; 113 (2):629-634.
Chicago/Turabian StyleV. Fernández-Ibañez; A. Soldado; A. Martínez-Fernández; B. de la Roza-Delgado. 2009. "Application of near infrared spectroscopy for rapid detection of aflatoxin B1 in maize and barley as analytical quality assessment." Food Chemistry 113, no. 2: 629-634.
This study investigated the effects of wilting and Lactobacillus buchneri inoculation on fermentation end products, DM recovery, nutritive characteristics and aerobic stability in organically grown triticale-fava bean intercrop silages. For this purpose, a bi-crop of triticale (× Triticosecale Wittm.) and fava bean (Vicia faba L.) was established on an old low-input mixed sward (Lolium perenne-Trifolium repens). The association of triticale and fava bean in winter crops and wilting forages before ensiling improved ensilability characteristics. Wilting for 24 hours before ensiling avoided effluent losses during the fermentation process and reduced ammonia nitrogen production. Inoculation with Lactobacillus buchneri 40788, for a final application rate of 1×105 cfu g-1 of fresh forage ensiled in laboratory silos during 80 days, promoted a higher CP concentration. Furthermore, it promoted changes in the concentration of fermentation end products, decreasing lactic acid and increasing acetic and propionic acids. The effects of Lactobacillus buchneri on aerobic stability were not confirmed in this study. Wilting depressed, but did not inhibit the activity of Lactobacillus buchneri in the fermentation process.;
A. Martínez-Fernández; A. Soldado; Fernando Vicente. Wilting and inoculation of Lactobacillus buchneri on intercropped triticale-fava silage: effects on nutritive, fermentative and aerobic stability characteristics. Agricultural and Food Science 2008, 19, 302 -312.
AMA StyleA. Martínez-Fernández, A. Soldado, Fernando Vicente. Wilting and inoculation of Lactobacillus buchneri on intercropped triticale-fava silage: effects on nutritive, fermentative and aerobic stability characteristics. Agricultural and Food Science. 2008; 19 (4):302-312.
Chicago/Turabian StyleA. Martínez-Fernández; A. Soldado; Fernando Vicente. 2008. "Wilting and inoculation of Lactobacillus buchneri on intercropped triticale-fava silage: effects on nutritive, fermentative and aerobic stability characteristics." Agricultural and Food Science 19, no. 4: 302-312.
Near infrared spectroscopy coupled to a microscope (NIRM) is a technique where the infrared beam is focused on each particle (< 50 μm) of a sample to collect NIR spectra. In this work, the experimental conditions (sample pre-treatment and instrumental) have been evaluated and compared for collecting spectral information in order to develop a strategy able to build large and robust spectral libraries to be transferred between NIRM instruments. To attempt this objective, we selected the most representative ingredients included in animal feeds: straw as low density forage, soybean as raw material and total mixed ration (TMR). Then, different mills, sieves and the number of spectra to be averaged were evaluated, selecting those that minimise noise and scanning time. The best results were obtained grinding through 1 mm sieve ingredients and TMR and collecting each particle spectra by scanning 70 individual spectra averaged as pre-treatment and instrumental conditions to obtain the most relevant information about each ingredient.
Maria Del Valle Fernández-Ibáñez; Ana Soldado; Fernando Vicente; Adela Martinez Fernandez; Begoña de la Roza-Delgado. Particle Size Optimisation in Development of near Infrared Microscopy Methodology to Build Spectral Libraries of Animal Feeds. Journal of Near Infrared Spectroscopy 2008, 16, 243 -248.
AMA StyleMaria Del Valle Fernández-Ibáñez, Ana Soldado, Fernando Vicente, Adela Martinez Fernandez, Begoña de la Roza-Delgado. Particle Size Optimisation in Development of near Infrared Microscopy Methodology to Build Spectral Libraries of Animal Feeds. Journal of Near Infrared Spectroscopy. 2008; 16 (3):243-248.
Chicago/Turabian StyleMaria Del Valle Fernández-Ibáñez; Ana Soldado; Fernando Vicente; Adela Martinez Fernandez; Begoña de la Roza-Delgado. 2008. "Particle Size Optimisation in Development of near Infrared Microscopy Methodology to Build Spectral Libraries of Animal Feeds." Journal of Near Infrared Spectroscopy 16, no. 3: 243-248.