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Qingxiang Meng
State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China

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Journal article
Published: 30 August 2021 in Animals
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These experiments were conducted to evaluate the effect of excessive sulfur on rumen fermentation, microflora, and epithelial barrier function in steers through in vitro gas production and animal feeding experiments. Nine and four levels of sulfur addition were evaluated in in vitro ruminal fermentation and animal feeding experiment, respectively. The results showed that increasing the level of sulfur in substrates decreased the total gas and methane production linearly, while increasing the production of hydrogen sulfide gas (p< 0.01). Volatile fatty acid concentrations, especially that of butyric acid, were increased by extra sulfur (p< 0.01). Sulfur content in the diet had no significant effect (p > 0.05) on most of the rumen microbes, except for Desulfovibrio, one of the major sulfate-reducing bacteria (SRB) in the rumen, whose population increased by adding extra sulfur (p< 0.001). The changes in the morphology of rumen epithelium and thickening of the total epithelial layer were mainly attributed to the increase in the acanthosis cell layer and stratum basale (p< 0.05). Further, the relative expressions of two tight junction protein regulating genes, CLDN-1 and TJP1, were reduced (p< 0.05). Excessive sulfur in the diet can change the type of rumen fermentation, sulfate metabolism and SRB population, and the rumen epithelial barrier function. The results of this study demonstrated that sulfur can be used as a methane inhibitor with the mechanism that SRB competitively used protons to produce hydrogen sulfide. However, a higher level of sulfur in the diet could increase the inflammatory reaction of the rumen epithelium which may affect nutrient absorption.

ACS Style

Hao Wu; Yan Li; Qingxiang Meng; Zhenming Zhou. Effect of High Sulfur Diet on Rumen Fermentation, Microflora, and Epithelial Barrier Function in Steers. Animals 2021, 11, 2545 .

AMA Style

Hao Wu, Yan Li, Qingxiang Meng, Zhenming Zhou. Effect of High Sulfur Diet on Rumen Fermentation, Microflora, and Epithelial Barrier Function in Steers. Animals. 2021; 11 (9):2545.

Chicago/Turabian Style

Hao Wu; Yan Li; Qingxiang Meng; Zhenming Zhou. 2021. "Effect of High Sulfur Diet on Rumen Fermentation, Microflora, and Epithelial Barrier Function in Steers." Animals 11, no. 9: 2545.

Journal article
Published: 28 May 2021 in Animals
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In Vivo fermentable organic matter (FOM) reflects the energy production and the potential of rumen’s microbial protein synthesis. However, the in vivo method with fistulated animals for FOM measurement compromises animal welfare and is laborious as well as expensive. Although the alternative in situ nylon bag technique has been widely used, it is also costly and requires rumen liquor. Therefore, the present study was performed to compare the in situ nylon bag technique with the in vitro neutral detergent cellulase (NDC) method or chemical composition to estimate in vivo FOM of roughages. For this purpose, we selected 12 roughages, including six each from forages and crop residues. Our results have shown the strong correlation equations between FOMin situ and FOMNDC of forages (n = 6; R2 = 0.79), crop residues (n = 6; R2 = 0.80), and roughages (n = 12; R2 = 0.84), respectively. Moreover, there were also strong correlations between the chemical composition of roughages and FOMin situ (n = 12; R2 = 0.84–0.93) or FOMNDC (n = 12; R2 = 0.79–0.89). In conclusion, the in vitro NDC method and chemical composition were alternatives to in situ nylon bag technique for predicting in vivo FOM of roughages in the current experiment.

ACS Style

Yue Liu; Rui Li; Hao Wu; Qingxiang Meng; Muhammad Khan; Zhenming Zhou. In Vitro Neutral Detergent Cellulase Method and Chemical Composition to Predict In Vivo Fermentable Organic Matter of Roughages. Animals 2021, 11, 1594 .

AMA Style

Yue Liu, Rui Li, Hao Wu, Qingxiang Meng, Muhammad Khan, Zhenming Zhou. In Vitro Neutral Detergent Cellulase Method and Chemical Composition to Predict In Vivo Fermentable Organic Matter of Roughages. Animals. 2021; 11 (6):1594.

Chicago/Turabian Style

Yue Liu; Rui Li; Hao Wu; Qingxiang Meng; Muhammad Khan; Zhenming Zhou. 2021. "In Vitro Neutral Detergent Cellulase Method and Chemical Composition to Predict In Vivo Fermentable Organic Matter of Roughages." Animals 11, no. 6: 1594.

Journal article
Published: 22 April 2020 in Foods
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Along with animal production factors, it is important to understand whether demographic factors influence untrained consumer perceptions of eating quality. This study examined the impact of demographic factors and sheepmeat consumption preferences on eating quality scores of American, Australian and Chinese untrained consumers. M. longissimus lumborum (LL) and m. semimembranosus (SM) were grilled according to sheep Meat Standards Australia protocols and evaluated by 2160 consumers for tenderness, juiciness, flavour and overall liking. Linear mixed effects models were used to analyse the impact of demographic factors and sheepmeat consumption habits on eating quality scores. Consumer age, gender, number of adults in a household and income had the strongest effect on sensory scores (P ≤ 0.05), although, the impact was often different across countries. Frequency of lamb consumption had an impact on sensory scores of American, Australian and Chinese consumers but larger sample sizes in some underrepresented subclasses for Australian and Chinese consumers are needed. Results suggest it is important to balance sensory panels for demographic factors of age, gender, number of adults and income to ensure sensory preferences are accurately represented for these particular populations.

ACS Style

Rachel A. O'reilly; Liselotte Pannier; Graham E. Gardner; Andrea J. Garmyn; Hailing Luo; Qingxiang Meng; Markus F. Miller; David W. Pethick. Influence of Demographic Factors on Sheepmeat Sensory Scores of American, Australian and Chinese Consumers. Foods 2020, 9, 529 .

AMA Style

Rachel A. O'reilly, Liselotte Pannier, Graham E. Gardner, Andrea J. Garmyn, Hailing Luo, Qingxiang Meng, Markus F. Miller, David W. Pethick. Influence of Demographic Factors on Sheepmeat Sensory Scores of American, Australian and Chinese Consumers. Foods. 2020; 9 (4):529.

Chicago/Turabian Style

Rachel A. O'reilly; Liselotte Pannier; Graham E. Gardner; Andrea J. Garmyn; Hailing Luo; Qingxiang Meng; Markus F. Miller; David W. Pethick. 2020. "Influence of Demographic Factors on Sheepmeat Sensory Scores of American, Australian and Chinese Consumers." Foods 9, no. 4: 529.

Journal article
Published: 17 September 2019 in Animals
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This study aimed to investigate the effect of applying various silage additives to whole corn crops at ensiling on growth performance, rumen fermentation, and blood physiology in growing–finishing bulls. Sixty Simmental × Yellow Cattle crossbred bulls were blocked by initial body weight (BW; 324.0 ± 5.4 kg) into 15 blocks. Animals in each block were randomly assigned to one of four diets formulated based on the following corn silage: control (CON), inoculated with complex lactic acid bacteria (CLB), ensilaged with mixed organic acid salts (MS), and ensilaged with CLB and MS (CLBMS). The feeding experiment lasted over 155 days, with an additional 7 days for adaptation. The results showed that bulls fed CLB-inoculated silage had greater (p < 0.05) daily dry matter intake than the other groups. The experimental treatment had no significant effect on average daily gain (p = 0.33) and feed-to-gain ratio (p = 0.13), although bulls fed CLB-inoculated silage had a larger numeric average daily gain. All additive-treated silage increased ruminal NH3–N content (p < 0.05) and reduced the acetate-to-propionate ratio (p < 0.05) of bulls compared with the control group. Bulls fed CLB-inoculated silage had a lower ruminal pH value (p < 0.05) than that of the other groups. Compared with the control group, bulls fed CLB-inoculated silage had greater blood cholesterol, albumin, and urea nitrogen (p < 0.05). Blood physiological responses were similar in bulls fed MS-treated and control silage, whereas those in cattle fed CLBMS-treated silage were between bulls fed CLB- and MS-treated silages and more similar to the former. Taking animal performance and cost effectiveness into consideration, the application of CLB alone to whole corn crops at ensiling appears to be a better choice compared with the application of either MS alone or both of them together.

ACS Style

Yawei Zhang; Xiangwei Zhao; Wanbao Chen; Zhenming Zhou; Qingxiang Meng; Hao Wu; Zhao; Chen; Zhou; Meng; Wu. Effects of Adding Various Silage Additives to Whole Corn Crops at Ensiling on Performance, Rumen Fermentation, and Serum Physiological Characteristics of Growing-Finishing Cattle. Animals 2019, 9, 695 .

AMA Style

Yawei Zhang, Xiangwei Zhao, Wanbao Chen, Zhenming Zhou, Qingxiang Meng, Hao Wu, Zhao, Chen, Zhou, Meng, Wu. Effects of Adding Various Silage Additives to Whole Corn Crops at Ensiling on Performance, Rumen Fermentation, and Serum Physiological Characteristics of Growing-Finishing Cattle. Animals. 2019; 9 (9):695.

Chicago/Turabian Style

Yawei Zhang; Xiangwei Zhao; Wanbao Chen; Zhenming Zhou; Qingxiang Meng; Hao Wu; Zhao; Chen; Zhou; Meng; Wu. 2019. "Effects of Adding Various Silage Additives to Whole Corn Crops at Ensiling on Performance, Rumen Fermentation, and Serum Physiological Characteristics of Growing-Finishing Cattle." Animals 9, no. 9: 695.

Journal article
Published: 16 September 2019 in Animals
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Although many byproducts of milling industries have potential as a ruminant feed, they have not been widely used due to their low nutritive value, especially high-fiber content and difficult processing techniques. Steam explosion can increase the degradation of hemicellulose, cellulose and lignin and make byproduct feedstuffs more suitable as ruminant feed. Five byproduct feedstuffs: cassava alcohol residue (CAR), distillers’ grains (DG), cottonseed meal (CM), rapeseed meal (RM) and potato starchy residues (PSR), were steam-exploded using five different processing parameters and the effects on the chemical composition, in vitro digestibility, energy value, and Cornell Net Carbohydrate and Protein System composition were assessed in order to provide a theoretical basis for the technique’s development and utilization for ruminant feed production. In this study, after steam-explosion treatment, the nutritive value and in vitro dry matter digestibility (IVDMD) of CAR, DG, RM and PSR were improved (p < 0.05), while there was no effect on nutritive value of CM (p > 0.05). Specifically, steam explosion treatment decreased the contents of neutral detergent fiber, acid detergent fiber, available cell wall, and slowly degraded protein, and increased the total digestible nutrients, digestible energy, metabolic energy, net energy for maintenance, and net energy for gain, sugar, non-structural carbohydrate and IVDMD. Therefore, steam-explosion treatment offers the potential to improve the suitability of byproduct feedstuffs as ruminant feed.

ACS Style

Yue Liu; Xiaoxuan Ren; Hao Wu; Qingxiang Meng; Zhenming Zhou. Steam Explosion Treatment of Byproduct Feedstuffs for Potential Use as Ruminant Feed. Animals 2019, 9, 688 .

AMA Style

Yue Liu, Xiaoxuan Ren, Hao Wu, Qingxiang Meng, Zhenming Zhou. Steam Explosion Treatment of Byproduct Feedstuffs for Potential Use as Ruminant Feed. Animals. 2019; 9 (9):688.

Chicago/Turabian Style

Yue Liu; Xiaoxuan Ren; Hao Wu; Qingxiang Meng; Zhenming Zhou. 2019. "Steam Explosion Treatment of Byproduct Feedstuffs for Potential Use as Ruminant Feed." Animals 9, no. 9: 688.

Journal article
Published: 01 May 2018 in Meat Science
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The effect of cattle feed on beef quality and oxidative stability was investigated. A corn silage (CS)-based finishing diet was compared with the diets based on corn stalk silage (SS) or corn stalk silage combined with its expected corn grain (SSC), containing a ratio of stalk to grain of corn plant of 1.5:1. Replacing CS with SS in the finishing diet had no effect on the proximate nutrients, cholesterol content, fatty acids profile, pH, color, water holding capacity, tenderness, texture profile, or oxidative stability of beef muscle. Compared to the CS diet and SS diet, cattle fed SSC diet showed an inferior antioxidant capacity, lower SOD and higher MDA concentrations in blood. SSC diet fed cattle also showed higher MDA and protein carbonyl concentrations in beef muscle indicating increased oxidation damage, and potentially resulting in a greater drip loss of the beef muscle. Corn silage can be replaced in the finishing feed of beef cattle with corn stalk silage without any negative effects on measures of beef quality.

ACS Style

Liwen He; Hao Wu; Guogen Wang; Qingxiang Meng; Zhenming Zhou. The effects of including corn silage, corn stalk silage, and corn grain in finishing ration of beef steers on meat quality and oxidative stability. Meat Science 2018, 139, 142 -148.

AMA Style

Liwen He, Hao Wu, Guogen Wang, Qingxiang Meng, Zhenming Zhou. The effects of including corn silage, corn stalk silage, and corn grain in finishing ration of beef steers on meat quality and oxidative stability. Meat Science. 2018; 139 ():142-148.

Chicago/Turabian Style

Liwen He; Hao Wu; Guogen Wang; Qingxiang Meng; Zhenming Zhou. 2018. "The effects of including corn silage, corn stalk silage, and corn grain in finishing ration of beef steers on meat quality and oxidative stability." Meat Science 139, no. : 142-148.

Journal article
Published: 20 March 2018 in BMC Microbiology
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This study was conducted to examine effects of nitrate on ruminal methane production, methanogen abundance, and composition. Six rumen-fistulated Limousin×Jinnan steers were fed diets supplemented with either 0% (0NR), 1% (1NR), or 2% (2NR) nitrate (dry matter basis) regimens in succession. Rumen fluid was taken after two-week adaptation for evaluation of in vitro methane production, methanogen abundance, and composition measurements. Results showed that nitrate significantly decreased in vitro ruminal methane production at 6 h, 12 h, and 24 h (P < 0.01; P < 0.01; P = 0.01). The 1NR and 2NR regimens numerically reduced the methanogen population by 4.47% and 25.82% respectively. However, there was no significant difference observed between treatments. The alpha and beta diversity of the methanogen community was not significantly changed by nitrate either. However, the relative abundance of the methanogen genera was greatly changed. Methanosphaera (PL = 0.0033) and Methanimicrococcus (PL = 0.0113) abundance increased linearly commensurate with increasing nitration levels, while Methanoplanus abundance was significantly decreased (PL = 0.0013). The population of Methanoculleus, the least frequently identified genus in this study, exhibited quadratic growth from 0% to 2% when nitrate was added (PQ = 0.0140). Correlation analysis found that methane reduction was significantly related to Methanobrevibacter and Methanoplanus abundance, and negatively correlated with Methanosphaera and Methanimicrococcus abundance.

ACS Style

Liping Zhao; Qingxiang Meng; Yan Li; Hao Wu; Yunlong Huo; Xinzhuang Zhang; Zhenming Zhou. Nitrate decreases ruminal methane production with slight changes to ruminal methanogen composition of nitrate-adapted steers. BMC Microbiology 2018, 18, 21 .

AMA Style

Liping Zhao, Qingxiang Meng, Yan Li, Hao Wu, Yunlong Huo, Xinzhuang Zhang, Zhenming Zhou. Nitrate decreases ruminal methane production with slight changes to ruminal methanogen composition of nitrate-adapted steers. BMC Microbiology. 2018; 18 (1):21.

Chicago/Turabian Style

Liping Zhao; Qingxiang Meng; Yan Li; Hao Wu; Yunlong Huo; Xinzhuang Zhang; Zhenming Zhou. 2018. "Nitrate decreases ruminal methane production with slight changes to ruminal methanogen composition of nitrate-adapted steers." BMC Microbiology 18, no. 1: 21.

Journal article
Published: 01 January 2018 in Animal Production Science
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This study was conducted to compare the effect of active dry yeasts (ADY) and yeast cultures (YC), two typical products of yeast preparations, on ruminal fermentation parameters, and on the fatty acid composition and flavour of beef from finishing bulls fed a high-concentrate diet. Forty-five finishing bulls (mean bodyweight ± s.d.: 505.4 ± 29.1 kg body weight) were allocated to three groups of 15 bulls and assigned randomly to one of three diets, which were CON diet (basal diet), ADY diet (basal diet + Levucell SC) and YC diet (basal diet + Diamond V XP). After 112 days trial, all bulls (mean bodyweight ± s.d.: 591.6 ± 64.2 kg body weight) were slaughtered. The rumen fluid of each animal was collected at slaughter and cross-sectional samples of longissimus lumborum were collected from three treatments at carcass segmentation after a 24-h chill. The result indicated that both ADY and YC supplementation had no significant effect (P > 0.05) on rumen pH, concentration of ammonia-N and total volatile fatty acid compared with CON. ADY had no significant effect (P > 0.05) on percentage of rumen individual fatty acid whereas YC significantly decreased valerate molar percentage (P = 0.008) and increased acetate molar percentage (P = 0.029) and the ratio of acetate to propionate (P = 0.035). In addition, compared with CON, ADY significantly (P = 0.003) increased the concentration of C16:1n7 and significantly (P = 0.012) decreased the concentration of C18:3n6c compared with CON. YC significantly decreased the concentration of C18:3n6c (P = 0.014) compared with CON. However, both ADY and YC had no significant effect (P > 0.05) on other individual fatty acid concentrations, the proportions of saturated fatty acids and monounsaturated fatty acids and nutritionally important values including the ratio of n-6/n-3, polyunsaturated fatty acids/saturated fatty acid and C18:2n6/C:18:3n3. Both ADY and YC significantly improved beef tenderness for cooking method of chaffy dish (P < 0.05) and beef tenderness also tended improve for ADY (P = 0.075) and YC (P = 0.097) when samples were fried. Both ADY and YC did not show improvements in flavour or juiciness compared with CON for either cooking method.

ACS Style

C. Y. Geng; Q. X. Meng; L. P. Ren; Z. M. Zhou; M. Zhang; C. G. Yan. Comparison of ruminal fermentation parameters, fatty acid composition and flavour of beef in finishing bulls fed active dry yeast (Saccharomyces cerevisiae) and yeast culture. Animal Production Science 2018, 58, 841 .

AMA Style

C. Y. Geng, Q. X. Meng, L. P. Ren, Z. M. Zhou, M. Zhang, C. G. Yan. Comparison of ruminal fermentation parameters, fatty acid composition and flavour of beef in finishing bulls fed active dry yeast (Saccharomyces cerevisiae) and yeast culture. Animal Production Science. 2018; 58 (5):841.

Chicago/Turabian Style

C. Y. Geng; Q. X. Meng; L. P. Ren; Z. M. Zhou; M. Zhang; C. G. Yan. 2018. "Comparison of ruminal fermentation parameters, fatty acid composition and flavour of beef in finishing bulls fed active dry yeast (Saccharomyces cerevisiae) and yeast culture." Animal Production Science 58, no. 5: 841.

Journal article
Published: 21 April 2017 in BMC Microbiology
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Here, we aimed to investigate the effects of ensiled mulberry leaves (EML) and sun-dried mulberry fruit pomace (SMFP) on fecal bacterial communities in Simmental crossbred finishing steers. To this end, the steers were reared on a standard TMR diet, standard diet containing EML, and standard diet containing SMFP. The protein and energy levels of all the diets were similar. Illumina MiSeq sequencing of the V4 region of the 16S rRNA gene and quantitative real-time PCR were used to analyze and detect the fecal bacterial community. Most of the sequences were assigned to Firmicutes (56.67%) and Bacteroidetes (35.90%), followed by Proteobacteria (1.87%), Verrucomicrobia (1.80%) and Tenericutes (1.37%). The predominant genera were 5-7 N15 (5.91%), CF231 (2.49%), Oscillospira (2.33%), Paludibacter (1.23%) and Akkermansia (1.11%). No significant differences were observed in the numbers of Firmicutes (p = 0.28), Bacteroidetes (p = 0.63), Proteobacteria (p = 0.46), Verrucomicrobia (p = 0.17), and Tenericutes (p = 0.75) populations between the treatment groups. At the genus level, genera classified with high abundance (more than 0.1%) belonged primarily to Bacteroidetes and Firmicutes. Furthermore, no differences were observed at the genus level: 5-7 N15, CF231, Oscillospira, Paludibacter, and Akkermansia (p > 0.05 in all cases), except that rc4–4 was lower in the CON and SMFP groups than in the EML group (p = 0.02). There were no significant differences in the richness estimate and diversity indices between the groups (p > 0.16), and the different diets did not significantly influence most selected fecal bacterial species (p > 0.06), except for Ruminococcus albus, which was higher in the EML group (p < 0.01) and Streptococcus bovis, which was lower in the CON group (p < 0.01) relative to the other groups. In conclusion, diets supplemented with EML and SMFP have little influence on the fecal bacterial community composition in finishing steers.

ACS Style

Yan Li; Qingxiang Meng; Bo Zhou; Zhenming Zhou. Effect of ensiled mulberry leaves and sun-dried mulberry fruit pomace on the fecal bacterial community composition in finishing steers. BMC Microbiology 2017, 17, 1 -9.

AMA Style

Yan Li, Qingxiang Meng, Bo Zhou, Zhenming Zhou. Effect of ensiled mulberry leaves and sun-dried mulberry fruit pomace on the fecal bacterial community composition in finishing steers. BMC Microbiology. 2017; 17 (1):1-9.

Chicago/Turabian Style

Yan Li; Qingxiang Meng; Bo Zhou; Zhenming Zhou. 2017. "Effect of ensiled mulberry leaves and sun-dried mulberry fruit pomace on the fecal bacterial community composition in finishing steers." BMC Microbiology 17, no. 1: 1-9.

Journal article
Published: 01 August 2016 in Journal of Animal Science
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A new apparatus, named Bang-Bang (BB), which can facilitate the in situ nylon bag measurement of ruminal degradation in beef cattle, is described. The BB is an apparatus specially designed as a replacement of the traditional steel chain or flexible plastic tubes for binding the bags used in the in situ nylon bag (ISNB) method. The BB apparatus consists of cylindrical pedestals, sealing clips, nylon string, and nylon bags. A series of in situ rumen incubations using 3 ruminally cannulated beef steers were conducted to compare the BB with the ISNB method by measuring rumen DM degradation kinetics of 12 different feedstuffs commonly offered to beef cattle in China. Greater (P < 0.01) DM disappearance and less (P < 0.01) relative SD (%) were observed with the BB than with the ISNB method. In addition, effective degradability of DM was highly correlated between the 2 methods (ISNB = (1.01 ± 0.04 × BB) − 4.03 ± 2.12; r2 = 0.99, P < 0.001, n = 12). These results indicate that the BB apparatus can be effectively used to determine the rumen degradation properties of feedstuffs with advantages over the traditional ISNB technique. Copyright © 2016. American Society of Animal Science.

ACS Style

F. Wang; D. Y. Li; Q. X. Meng. Technical note: A special apparatus for facilitating the in situ nylon bag measurement of the ruminal degradation of feedstuffs in cattle1. Journal of Animal Science 2016, 94, 3457 -3463.

AMA Style

F. Wang, D. Y. Li, Q. X. Meng. Technical note: A special apparatus for facilitating the in situ nylon bag measurement of the ruminal degradation of feedstuffs in cattle1. Journal of Animal Science. 2016; 94 (8):3457-3463.

Chicago/Turabian Style

F. Wang; D. Y. Li; Q. X. Meng. 2016. "Technical note: A special apparatus for facilitating the in situ nylon bag measurement of the ruminal degradation of feedstuffs in cattle1." Journal of Animal Science 94, no. 8: 3457-3463.

Comparative study
Published: 16 October 2015 in Animal Science Journal
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This study was conducted to compare the effect of active dry yeasts (ADY) and yeast cultures (YC), two typical products of yeast preparations, on growth performance, carcass characteristics, meat quality and blood indexes in finishing bulls fed a high‐concentrate diet. Forty‐five finishing bulls (mean body weight (BW) ± standard deviation: 505 ± 29 kg BW) were allocated to three groups of 15 bulls and assigned randomly to one of three diets which were CON diet (basal diet), ADY diet (basal diet + Levucell SC) and YC diet (basal diet + Diamond V XP), respectively. After 98 days of trial, all bulls were slaughtered. The result showed that ADY rather than YC improved growth performance and carcass traits of bulls compared to CON. Moreover, both ADY and YC improved beef tenderness and changed blood indexes related to fat metabolism. In conclusion, ADY had more pronounced effect on growth performance of bulls fed high‐concentrate diet, and both ADY and YC improved the beef quality by intensive fat metabolism.

ACS Style

Chun-Yin Geng; Li-Ping Ren; Zhen-Ming Zhou; Ying Chang; Qing-Xiang Meng. Comparison of active dry yeast (Saccharomyces cerevisiae) and yeast culture for growth performance, carcass traits, meat quality and blood indexes in finishing bulls. Animal Science Journal 2015, 87, 982 -988.

AMA Style

Chun-Yin Geng, Li-Ping Ren, Zhen-Ming Zhou, Ying Chang, Qing-Xiang Meng. Comparison of active dry yeast (Saccharomyces cerevisiae) and yeast culture for growth performance, carcass traits, meat quality and blood indexes in finishing bulls. Animal Science Journal. 2015; 87 (8):982-988.

Chicago/Turabian Style

Chun-Yin Geng; Li-Ping Ren; Zhen-Ming Zhou; Ying Chang; Qing-Xiang Meng. 2015. "Comparison of active dry yeast (Saccharomyces cerevisiae) and yeast culture for growth performance, carcass traits, meat quality and blood indexes in finishing bulls." Animal Science Journal 87, no. 8: 982-988.

Journal article
Published: 23 December 2014 in Asian-Australasian Journal of Animal Sciences
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The objective of this study was to evaluate the effects of different litter mixture compositions on bedding system temperature, pH and volatile fatty acid and ammonia-N (NH3-N) content, and the serum physico-chemical parameters and growth indices of calves. Thirty-two Limousin calves (280±20 kg) were randomly assigned to four groups (n = 8 for each group) according to the bedding system used: i) control with soil only (CTR); ii) mixture with 50% paddy hulls (PH), 30% saw dusts (SD), 10% peat moss (PM) and 10% corn cobs (CC) (TRT1); iii) mixture with 15% PH, 15% SD, 10% PM, 40% CC, and 20% corn stover (CS) (TRT2); iv) mixture with 30% PH, 10% PM, 40% CC, and 20% CS (TRT3). The litter material combinations of different treatments were based on the cost of bedding system materials in China. The cost of four treatments from low to high: Control

ACS Style

J. Meng; F. H. Shi; Q. X. Meng; L. P. Ren; Z. M. Zhou; H. Wu; L. P. Zhao. Effects of Bedding Material Composition in Deep Litter Systems on Bedding Characteristics and Growth Performance of Limousin Calves. Asian-Australasian Journal of Animal Sciences 2014, 28, 143 -150.

AMA Style

J. Meng, F. H. Shi, Q. X. Meng, L. P. Ren, Z. M. Zhou, H. Wu, L. P. Zhao. Effects of Bedding Material Composition in Deep Litter Systems on Bedding Characteristics and Growth Performance of Limousin Calves. Asian-Australasian Journal of Animal Sciences. 2014; 28 (1):143-150.

Chicago/Turabian Style

J. Meng; F. H. Shi; Q. X. Meng; L. P. Ren; Z. M. Zhou; H. Wu; L. P. Zhao. 2014. "Effects of Bedding Material Composition in Deep Litter Systems on Bedding Characteristics and Growth Performance of Limousin Calves." Asian-Australasian Journal of Animal Sciences 28, no. 1: 143-150.

Journal article
Published: 20 August 2014 in Asian-Australasian Journal of Animal Sciences
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Increasing cost and scarcity of maize has stimulated the use of alternative feed sources (AFS) in the diets of cattle. In this study, we investigated the effects of partial or total replacement of maize on nutrient digestibility, growth performance, blood metabolites, and economics in Limousin crossbred feedlot cattle. Forty-five Limousin×Luxi crossbred bulls were randomly assigned to the three treatment groups, orthodox diet (OD; 45.0% maize), partial replacement diet (PRD; 15% maize, 67% AFS), total replacement diet (TRD; 0% maize, 100% AFS). The growth feeding trial lasted for 98 days. Dry matter intake (DMI) and average daily gain (ADG) were recorded. The digestion trial was carried out after the end of the growth trial. Total faeces and feed samples were measured daily. Digestibilities of dry matter (DM) and organic matter (OM), crude protein (CP), neutral detergent fiber (NDF) and acid detergent fiber (ADF) were calculated. After the feeding trial, blood metabolites were measured in 12 animals from each group. Initial and final body weights did not differ significantly among treatment groups (p>0.05). The ADG and DMI were 1.72 and 8.66, 1.60 and 9.10, and 1.40 and 9.11 kg/d for OD, PRD, and TRD, respectively. The PRD and TRD exhibited lower ADG (p0.5). Feed efficiency of PRD and TRD were lower than OD (p0.05). Blood urea nitrogen (mg/dL) in PRD and TRD was higher than OD (p0.05), although TRD showed the highest economic benefits overall (p<0.01). While a traditional diet maximized the growth rate, partial or total replacement of dietary maize with AFS proved economically feasible due to their lower costs and comparable nutrient digestibilities of DM, CP, NDF, and ADF. Partial replacement may prove economically competitive in the current situation of China

ACS Style

F. H. Shi; L. Fang; Q. X. Meng; H. Wu; J. P. Du; X. X. Xie; L. P. Ren; Z. M. Zhou; B. Zhou. Effects of Partial or Total Replacement of Maize with Alternative Feed Source on Digestibility, Growth Performance, Blood Metabolites and Economics in Limousin Crossbred Cattle. Asian-Australasian Journal of Animal Sciences 2014, 27, 1443 -1451.

AMA Style

F. H. Shi, L. Fang, Q. X. Meng, H. Wu, J. P. Du, X. X. Xie, L. P. Ren, Z. M. Zhou, B. Zhou. Effects of Partial or Total Replacement of Maize with Alternative Feed Source on Digestibility, Growth Performance, Blood Metabolites and Economics in Limousin Crossbred Cattle. Asian-Australasian Journal of Animal Sciences. 2014; 27 (10):1443-1451.

Chicago/Turabian Style

F. H. Shi; L. Fang; Q. X. Meng; H. Wu; J. P. Du; X. X. Xie; L. P. Ren; Z. M. Zhou; B. Zhou. 2014. "Effects of Partial or Total Replacement of Maize with Alternative Feed Source on Digestibility, Growth Performance, Blood Metabolites and Economics in Limousin Crossbred Cattle." Asian-Australasian Journal of Animal Sciences 27, no. 10: 1443-1451.

Journal article
Published: 01 January 2014 in Journal of Animal Science and Biotechnology
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Live yeast (Saccharomyces cerevisiae) constitutes an effective additive for animal production; its probiotic effect may be related to the concentrate-to-forage ratio (CTFR). The objective of this study was to assess the effects of S. cerevisiae (SC) on fiber degradation and rumen microbial populations in steers fed diets with different levels of dietary concentrate. Ten Simmental × Local crossbred steers (450 ± 50 kg BW) were assigned to a control group or an SC group. Both groups were fed the same basal diet but the SC group received SC supplementation (8 × 109 cfu/h/d through the ruminal fistula) following a two-period crossover design. Each period consisted of four phases, each of which lasted 17 d: 10 d for dietary adaptation, 6 d for degradation study, and 1 d for rumen sample collection. From the 1st to the 4th phase, steers were fed in a stepwise fashion with increasing CTFRs, i.e., 30:70, 50:50, 70:30, and 90:10. The kinetics of dry matter and fiber degradation of alfalfa pellets were evaluated; the rumen microbial populations were detected using real-time PCR. The results revealed no significant (P > 0.05) interactions between dietary CTFR and SC for most parameters. Dietary CTFR had a significant effect (P < 0.01) on degradation characteristics of alfalfa pellets and the copies of rumen microorganism; the increasing concentrate level resulted in linear, quadratic or cubic variation trend for these parameters. SC supplementation significantly (P < 0.05) affected dry matter (DM) and neutral detergent fiber (NDF) degradation rates (cDM, cNDF) and NDF effective degradability (EDNDF). Compared with the control group, there was an increasing trend of rumen fungi and protozoa in SC group (P < 0.1); copies of total bacteria in SC group were significantly higher (P < 0.05). Additionally, percentage of Ruminobacter amylophilus was significantly lower (P < 0.05) but percentage of Selenomonas ruminantium was significantly higher (P < 0.05) in the SC group. In a word, dietary CTFR had a significant effect on degradation characteristics of forage and rumen microbial population. S. cerevisiae had positive effects on DM and NDF degradation rate or effective degradability of forage; S. cerevisiae increased rumen total bacteria, fungi, protozoa, and lactate-utilizing bacteria but reduced starch-degrading and lactate-producing bacteria.

ACS Style

Gengzhi Ding; Ying Chang; Liping Zhao; Zhenming Zhou; Liping Ren; Qingxiang Meng. Effect of Saccharomyces cerevisiae on alfalfa nutrient degradation characteristics and rumen microbial populations of steers fed diets with different concentrate-to-forage ratios. Journal of Animal Science and Biotechnology 2014, 5, 24 -24.

AMA Style

Gengzhi Ding, Ying Chang, Liping Zhao, Zhenming Zhou, Liping Ren, Qingxiang Meng. Effect of Saccharomyces cerevisiae on alfalfa nutrient degradation characteristics and rumen microbial populations of steers fed diets with different concentrate-to-forage ratios. Journal of Animal Science and Biotechnology. 2014; 5 (1):24-24.

Chicago/Turabian Style

Gengzhi Ding; Ying Chang; Liping Zhao; Zhenming Zhou; Liping Ren; Qingxiang Meng. 2014. "Effect of Saccharomyces cerevisiae on alfalfa nutrient degradation characteristics and rumen microbial populations of steers fed diets with different concentrate-to-forage ratios." Journal of Animal Science and Biotechnology 5, no. 1: 24-24.

Ruminant nutrition
Published: 01 September 2013 in Journal of Animal Science
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This study investigated the effects of a mixture of steam-flaked corn and extruded soybeans on performance, ruminal development, ruminal fermentation variables, and intestinal absorptive capability in Holstein male calves (n = 39). Calves were assigned to 1 of 3 treatments (13 calves per treatment): 1) milk replacer (MR), 2) one-half of the amount of MR in treatment 1, plus a mixture of 62.1% steam-flaked corn and 30.5% extruded soybeans provided ad libitum (HMCS), or 3) a mixture of 62.1% steam-flaked corn and 30.5% extruded soybeans provided ad libitum (CS). All the calves were started at 2 ± 1 d of age and studied for 150 d. Each 30 d was defined as 1 period. Dry matter intake and growth were measured daily and monthly, respectively. All calves were harvested at 150 d of age, after which rumen fluid was collected. Rumen and intestine samples were gathered. Calves fed MR exhibited greater BW (P = 0.001) and ADG (P < 0.001), compared with calves fed HMCS and CS from period 2 to 3; however, from period 4 to 5, CS calves had greater (P < 0.04) ADG than MR calves. The treatments did not differ in final BW (P = 0.72) and ADG (P = 0.20) from period 2 to 5. Compared with HMCS and MR calves, CS calves had the greatest DMI (P < 0.001) and the least feed efficiency (P < 0.001) from period 2 to 5. For ruminal fermentation parameters, CS calves had decreased (P = 0.04) rumen pH than MR calves. The NH3 concentrations were greater (P = 0.03) in calves fed HMCS than calves fed MR and CS. Total VFA concentrations were greatest in CS calves (P = 0.02). Calves fed CS had the greatest molar concentrations of propionate, butyrate, and valerate (P < 0.002), and calves fed HMCS had the greatest molar concentrations of isobutyrate (P = 0.001) and isovalerate (P = 0.001). The CS calves exhibited greater empty rumen weight (P = 0.001), papillae length (P < 0.001), papillae width (P < 0.001), rumen wall thickness (P = 0.012), and papillae density (P = 0.003). The greatest villus heights in the jejunum (P = 0.04) and ileum (P = 0.005) were observed in CS calves. Compared with HMCS calves, calves fed CS had greater villus:crypt ratios in the duodenum (P = 0.001) and jejunum (P = 0.001). Results indicate that CS improves ADG in period 4 to 5 and positively contributes to ruminal development, ruminal fermentation, and intestinal absorptive capability in veal calves.

ACS Style

X. X. Xie; Q. X. Meng; P. Liu; H. Wu; S. R. Li; L. P. Ren; X. Z. Li. Effects of a mixture of steam-flaked corn and extruded soybeans on performance, ruminal development, ruminal fermentation, and intestinal absorptive capability in veal calves1. Journal of Animal Science 2013, 91, 4315 -4321.

AMA Style

X. X. Xie, Q. X. Meng, P. Liu, H. Wu, S. R. Li, L. P. Ren, X. Z. Li. Effects of a mixture of steam-flaked corn and extruded soybeans on performance, ruminal development, ruminal fermentation, and intestinal absorptive capability in veal calves1. Journal of Animal Science. 2013; 91 (9):4315-4321.

Chicago/Turabian Style

X. X. Xie; Q. X. Meng; P. Liu; H. Wu; S. R. Li; L. P. Ren; X. Z. Li. 2013. "Effects of a mixture of steam-flaked corn and extruded soybeans on performance, ruminal development, ruminal fermentation, and intestinal absorptive capability in veal calves1." Journal of Animal Science 91, no. 9: 4315-4321.

Journal article
Published: 12 June 2012 in The National Medical Journal of India
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Q-X Li; X Ao; L Wen; H-J Zhong; X-Y Zeng; Y Li; H-R Gong; J-X Li; Q Wu; Z Zhang; X-K Peng; J-X Zhang; S-Y Yuan; A-M Zhu; G Li; Y Zhang; Q-X Meng. Effect of increased levels of adiponectin by administration of the adeno vector rAAV2/1-Acrp30 on glucose, lipid metabolism and ultrastructure of the aorta in Goto-Kakizaki rats with arteriosclerosis. The National Medical Journal of India 2012, 25, 1 .

AMA Style

Q-X Li, X Ao, L Wen, H-J Zhong, X-Y Zeng, Y Li, H-R Gong, J-X Li, Q Wu, Z Zhang, X-K Peng, J-X Zhang, S-Y Yuan, A-M Zhu, G Li, Y Zhang, Q-X Meng. Effect of increased levels of adiponectin by administration of the adeno vector rAAV2/1-Acrp30 on glucose, lipid metabolism and ultrastructure of the aorta in Goto-Kakizaki rats with arteriosclerosis. The National Medical Journal of India. 2012; 25 (1):1.

Chicago/Turabian Style

Q-X Li; X Ao; L Wen; H-J Zhong; X-Y Zeng; Y Li; H-R Gong; J-X Li; Q Wu; Z Zhang; X-K Peng; J-X Zhang; S-Y Yuan; A-M Zhu; G Li; Y Zhang; Q-X Meng. 2012. "Effect of increased levels of adiponectin by administration of the adeno vector rAAV2/1-Acrp30 on glucose, lipid metabolism and ultrastructure of the aorta in Goto-Kakizaki rats with arteriosclerosis." The National Medical Journal of India 25, no. 1: 1.

Journal article
Published: 15 March 2012 in Journal of Animal and Feed Sciences
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The study was conducted to evaluate the nutritive value of mulberry pomace (MP) treated with sun-drying (SD), ensiling (EN), and ensiling with a Lactobacillus additive (ELA), respectively. The chemical composition, in situ degradabilities, and in vitro gas production were determined for all...

ACS Style

B. Zhou; Q.-X. Meng; L.-P. Ren; F.-H. Shi; Z. Wei; Z.-M. Zhou. Evaluation of chemical composition, in situ degradability and in vitro gas production of ensiled and sun-dried mulberry pomace. Journal of Animal and Feed Sciences 2012, 21, 188 -197.

AMA Style

B. Zhou, Q.-X. Meng, L.-P. Ren, F.-H. Shi, Z. Wei, Z.-M. Zhou. Evaluation of chemical composition, in situ degradability and in vitro gas production of ensiled and sun-dried mulberry pomace. Journal of Animal and Feed Sciences. 2012; 21 (1):188-197.

Chicago/Turabian Style

B. Zhou; Q.-X. Meng; L.-P. Ren; F.-H. Shi; Z. Wei; Z.-M. Zhou. 2012. "Evaluation of chemical composition, in situ degradability and in vitro gas production of ensiled and sun-dried mulberry pomace." Journal of Animal and Feed Sciences 21, no. 1: 188-197.

Journal article
Published: 17 September 2007 in Journal of Animal and Feed Sciences
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The objective of this study was to examine the effect of processing dejuiced sweet sorghum residues on ruminal fermentation characteristics in vitro . Dejuiced sweet sorghum residues (DSSR) were subjected to three treatments: 1. direct ensilage (E), 2. ensilage of distillers after distillation...

ACS Style

W. Du; L. Wan; C. M. Sun; H. Song; Q. X. Meng. Effect of processing dejuiced sweet sorghum residues on ruminal fermentation characteristics in vitro. Journal of Animal and Feed Sciences 2007, 16, 31 -36.

AMA Style

W. Du, L. Wan, C. M. Sun, H. Song, Q. X. Meng. Effect of processing dejuiced sweet sorghum residues on ruminal fermentation characteristics in vitro. Journal of Animal and Feed Sciences. 2007; 16 (Suppl. 2):31-36.

Chicago/Turabian Style

W. Du; L. Wan; C. M. Sun; H. Song; Q. X. Meng. 2007. "Effect of processing dejuiced sweet sorghum residues on ruminal fermentation characteristics in vitro." Journal of Animal and Feed Sciences 16, no. Suppl. 2: 31-36.

Journal article
Published: 17 September 2007 in Journal of Animal and Feed Sciences
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Thirty six lactating Holstein cows were selected based on identical parity, milk yield, body weight and body condition score to study the effect of supplemental β-carotene in the periparturient diet on plasma vitamin A (VA) and β-carotene concentrations and lymphocyte proliferation. The cows...

ACS Style

W. J. He; Q. D. Zhang; L. P. Ren; Q. X. Meng. Effect of supplemental β-carotene in the periparturient diet on plasma vitamin A and β-carotene concentrations and lymphocyte proliferation in Holstein cows. Journal of Animal and Feed Sciences 2007, 16, 393 -398.

AMA Style

W. J. He, Q. D. Zhang, L. P. Ren, Q. X. Meng. Effect of supplemental β-carotene in the periparturient diet on plasma vitamin A and β-carotene concentrations and lymphocyte proliferation in Holstein cows. Journal of Animal and Feed Sciences. 2007; 16 (Suppl. 2):393-398.

Chicago/Turabian Style

W. J. He; Q. D. Zhang; L. P. Ren; Q. X. Meng. 2007. "Effect of supplemental β-carotene in the periparturient diet on plasma vitamin A and β-carotene concentrations and lymphocyte proliferation in Holstein cows." Journal of Animal and Feed Sciences 16, no. Suppl. 2: 393-398.

Journal article
Published: 17 September 2007 in Journal of Animal and Feed Sciences
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ACS Style

H. F. Xue; Y. F. Deng; Z. M. Zhou; L. P. Ren; Q. X. Meng. Effect of two methods of Van Soest fibre detergent system on monosaccharide compositions of acid detergent residues. Journal of Animal and Feed Sciences 2007, 16, 500 -505.

AMA Style

H. F. Xue, Y. F. Deng, Z. M. Zhou, L. P. Ren, Q. X. Meng. Effect of two methods of Van Soest fibre detergent system on monosaccharide compositions of acid detergent residues. Journal of Animal and Feed Sciences. 2007; 16 (Suppl. 2):500-505.

Chicago/Turabian Style

H. F. Xue; Y. F. Deng; Z. M. Zhou; L. P. Ren; Q. X. Meng. 2007. "Effect of two methods of Van Soest fibre detergent system on monosaccharide compositions of acid detergent residues." Journal of Animal and Feed Sciences 16, no. Suppl. 2: 500-505.