Article
Agriculture, Dairy & Animal Science
Dangdang Wang, Guangfu Tang, Yannan Wang, Junjian Yu, Luyu Chen, Jie Chen, Yanbo Wu, Yuanjie Zhang, Yangchun Cao, Junhu Yao
Summary: This study found that there are two bacterial clusters in the rumen of goats: P-cluster and R-cluster. Compared to P-cluster goats, R-cluster goats have higher growth rates and concentrations of propionate, butyrate, amino acids, and unsaturated fatty acids. The bacteria enriched in the R-cluster have negative correlations with the bacteria enriched in the P-cluster. These results shed light on improving the growth performance of ruminant animals.
Article
Agriculture, Multidisciplinary
Hu Hong-lian, Yang Shu-qing, Cheng Meng, Song Li-wen, Xu Ming, Gao Min, Yu Zhong-tang
Summary: Grain-induced subacute ruminal acidosis (SARA) impairs the morphology and permeability of the ruminal epithelium and the expression of genes involved in epithelial barrier function. However, these effects can be partially reversed during the restitution period.
JOURNAL OF INTEGRATIVE AGRICULTURE
(2022)
Article
Agriculture, Dairy & Animal Science
Chunjia Jin, Xiaodong Su, Peiyue Wang, Ziqi Liang, Xinjian Lei, Hanxun Bai, Gaofeng Liang, Jie Li, Yangchun Cao, Junhu Yao
Summary: The effects of dietary rumen degradable starch level on growth, carcass performance, rumen fermentation, and rumen papillae development in growing goats were investigated. High rumen degradable starch diet led to reductions in weight gain, lean meat percentage, and meat to bone ratio, while increasing feed conversion ratio. It also affected rumen fermentation, decreased rumen papillae development, and down-regulated the expression of important genes, resulting in decreased growth performance.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2023)
Article
Agriculture, Dairy & Animal Science
Xi Guo, Yuqin Liu, Yu Jiang, Junhu Yao, Zongjun Li
Summary: This study investigated the succession processes of ruminal bacterial community in response to monensin supplementation in goats. The results showed that the ruminal ecosystem was reshaped through a series of succession processes, and the carbohydrate-degrading bacteria presented a higher level of adaptability. The findings suggest that potential alternatives for monensin as rumen modifiers could have similar patterns of microbial community successions.
Article
Agriculture, Dairy & Animal Science
Sonny C. Ramos, Chang Dae Jeong, Lovelia L. Mamuad, Seon Ho Kim, Seung Ha Kang, Eun Tae Kim, Yong Il Cho, Sung Sill Lee, Sang Suk Lee
Summary: The study found that changing diet from high-forage to two succeeding high-concentrate diets, and then back to high-forage diet, significantly impacted ruminal fermentation parameters, bacterial community composition, and expressed genes in Holstein Friesian cows. Specifically, during the high-concentrate diet period, ruminal pH decreased, while ammonia nitrogen and volatile fatty acid concentrations increased, and bacterial richness and diversity decreased. The diet transitions also influenced gene expression in rumen epithelia.
Article
Geosciences, Multidisciplinary
Dorsaf Kerfahi, Ke Dong, Ying Yang, Hyoki Kim, Koichi Takahashi, Jonathan Adams
Summary: In this study, elevational patterns in functional gene diversity in bacteria were studied along a 2,300 m elevational gradient on Mt. Norikura, Japan, using metagenomic and amplicon data. Contrary to the hypothesis, a mid-elevation maximum in functional gene diversity was observed, along with a weak negative relationship between OTU diversity and functional diversity. The decoupling of functional gene diversity from taxonomic diversity emphasizes the importance of treating each as separate dimensions of diversity.
Article
Biotechnology & Applied Microbiology
Xiaodong Chen, Xiaodong Su, Jilong Li, Yuntian Yang, Peiyue Wang, Fang Yan, Junhu Yao, Shengru Wu
Summary: Ruminal microbiota undergo frequent changes with high grain diets, potentially leading to the occurrence of subacute ruminal acidosis (SARA). Significant bacterial differences were observed between goats with SARA and healthy goats, indicating potential pathogenic risks associated with altered microbiota.
NPJ BIOFILMS AND MICROBIOMES
(2021)
Article
Veterinary Sciences
Xing-Zhou Tian, Jia-Xuan Li, Qing-Yuan Luo, Di Zhou, Qing-Meng Long, Xu Wang, Qi Lu, Gui-Lan Wen
Summary: The supplementation of anthocyanin-rich purple corn pigment had positive effects on blood biochemical indexes and ruminal fermentation parameters in goats, including increased digestibility of protein and energy, enhanced antioxidant potential, and altered ruminal microbiota structure.
FRONTIERS IN VETERINARY SCIENCE
(2021)
Article
Agriculture, Dairy & Animal Science
Nittaya Taethaisong, Siwaporn Paengkoum, Walailuck Kaewwongsa, Narawich Onjai-uea, Sorasak Thongpea, Pramote Paengkoum
Summary: This study evaluated the effect of neem leaf supplementation on digestibility, growth performance, rumen fermentation, and ruminal microbial population in goats. The results showed that goats fed 6% neem leaf and 15% polyethylene glycol had the highest values of feed intake, nutrient digestion, nitrogen utilization, and increased growth performance. They also had reduced protozoa and methanogens. Therefore, neem leaf could be a potential substitute supplement for goat feed.
Article
Agriculture, Dairy & Animal Science
Y. Ma, C. Wang, M. Elmhadi, H. Zhang, Y. Han, B. Shen, B. L. He, X. Y. Liu, H. R. Wang
Summary: The study found that dietary thiamine supplementation can alleviate rumen epithelium inflammation and barrier function in goats fed a high-concentrate diet. Results showed that the HCT group had significantly higher concentrations of metabolites compared to the HC group, indicating that thiamine supplementation promotes rumen epithelial growth.
JOURNAL OF DAIRY SCIENCE
(2021)
Article
Agriculture, Dairy & Animal Science
Bin Yang, Hongwei Chen, Yalu Liu, Yang Luo, Bo He, Shanshan Wang, Jiakun Wang
Summary: Understanding the development of the rumen epithelial microbial community structure and population dynamics in young ruminants is crucial for promoting rumen health and production. This study investigated the effects of alfalfa intervention on the rumen epithelial bacteria of 10-day-old lambs, and found that it induced changes in the bacterial community and was associated with rumen health parameters.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2023)
Article
Agriculture, Dairy & Animal Science
Bin Yang, Hongwei Chen, Yalu Liu, Yang Luo, Bo He, Shanshan Wang, Jiakun Wang
Summary: This study investigated the changes in rumen epithelial (RE) microbial community structure and population dynamics during early life and their response to fiber intervention. The results showed that fiber intervention induced a more mature RE bacterial community and changes in rumen tissue genes associated with fatty acid metabolism and barrier function. Additionally, the composition of RE bacteria in the postweaning period differed between groups. These findings suggest that manipulating RE bacteria during early life can improve rumen health.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2023)
Article
Agriculture, Dairy & Animal Science
Qingyue Zhang, Yanli Zhao, Yinhao Li, Xiaoyu Guo, Yongmei Guo, Guoqiang Ma, Xiaoshuai Liang, Sumei Yan
Summary: Due to the imbalance and limited availability of pastures in China, cashmere goats are often raised in a confined feeding system, which may result in metabolic diseases. Noni fruit polysaccharides have demonstrated the potential to enhance rumen fermentation and improve nutrient metabolism in ruminants. This study aimed to investigate the effects of polysaccharide-rich noni fruit extract (NFP) on ruminal fermentation, microbiota, and nutrient digestion in cashmere goats. Results showed that NFP improved ruminal fermentation and nutrient digestibility, and altered the microbial composition in the rumen. The findings suggest that NFP could serve as a promising rumen fermentation enhancer for cashmere goats.
Article
Multidisciplinary Sciences
Jill Hagey, Maia Laabs, Elizabeth A. Maga, Edward J. DePeters
Summary: The rumen is an important ecosystem in improving cattle feed efficiency and reducing environmental impacts. This study investigated the bacterial and archaeal communities using different sampling methods and rumen fraction types. The results showed that the abundance of major archaeal communities was not affected by the sampling method, while the bacterial order WCHB1-41 and family Prevotellaceae were enriched in liquid samples. Solid samples with rumen liquid particles resembled the grab samples. Stomach tube samples had higher variability and represented the liquid phase, and fecal samples differed significantly from the rumen samples.
Article
Microbiology
Long-Ping Li, Lei Qu, Tuo Li
Summary: This study investigated the effects of dietary supplementation of Selenohomolanthionine (SeHLan) on the growth and rumen microbiota of cashmere goats. The results showed that medium SeHLan supplementation significantly affected rumen bacterial composition, nutrient digestibility, and growth of the goats.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Nutrition & Dietetics
Jinzhen Jiao, Xiaopeng Li, Karen A. Beauchemin, Zhiliang Tan, Shaoxun Tang, Chuanshe Zhou
BRITISH JOURNAL OF NUTRITION
(2015)
Article
Agriculture, Dairy & Animal Science
J. Jiao, Q. Lu, R. J. Forster, C. Zhou, M. Wang, J. Kang, Z. Tan
JOURNAL OF ANIMAL SCIENCE
(2016)
Article
Agriculture, Multidisciplinary
Jinzhen Jiao, Xiaoli Zhang, Min Wang, Chuanshe Zhou, Qiongxian Yan, Zhiliang Tan
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2019)
Article
Agriculture, Dairy & Animal Science
Changxin Tian, Jian Wu, Jinzhen Jiao, Chuanshe Zhou, Zhiliang Tan
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2020)
Article
Biotechnology & Applied Microbiology
X. Zhang, J. Wu, C. Zhou, Z. Tan, J. Jiao
Summary: This study investigated the temporal and spatial colonization patterns of bacterial communities in the jejunal mucosa and digesta of goats at different developmental stages. Results showed that the jejunal bacterial community exhibited age- and gut region-dependent progression, with different microbial signatures enriched in the digesta and mucosa. The study highlighted the complexity of ecological niches in manipulating gut microbiota and provided insights into potential interventions for improving nutrient utilization and reducing enteric diseases in ruminants.
JOURNAL OF APPLIED MICROBIOLOGY
(2021)
Article
Agriculture, Multidisciplinary
Jian Wu, Xiaoli Zhang, Zhiliang Tan, Jinzhen Jiao
Summary: This experiment studied the distribution of free amino acids and expression of related genes in the intestines of Liuyang black goats, finding that replacing corn grain with corn gluten feed did not significantly affect amino acid profiles. Differences were observed in amino acid concentrations and transporter expression between the small intestine and large intestine, with the jejunum identified as the primary site for amino acid transport. Substitution with corn gluten feed did not negatively impact the amino acid chemosensing systems.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2022)
Article
Microbiology
Jian Wu, Xiaoli Zhang, Min Wang, Chuanshe Zhou, Jinzhen Jiao, Zhiliang Tan
Summary: Precise dietary intervention in early-life gastrointestinal microbiota has significant implications in the long-life productivity and health of young ruminants, as well as in lowering their environmental footprint. Here, using weaned goats as a model, we report that animals adapted to high rumen-undegradable protein diet in a dynamic manner by enriching fecal community that could effectively move toward and scavenge nutrients such as glucose and amino acids and, thereafter, elicit butyrate and BCAA production. Meanwhile, the three dynamic assembly trajectories in fecal microbiota highlight the importance of taking microbiota dynamics into account. Our findings systematically reported when, which, and how the fecal microbiome responded to metabolizable protein profile intervention in young ruminants and laid a foundation for improving the productivity and health of livestock due to the host-microbiota interplay.
MICROBIOLOGY SPECTRUM
(2022)
Article
Ecology
Qiu Shuang Li, Rong Wang, Zhi Yuan Ma, Xiu Min Zhang, Jin Zhen Jiao, Zhi Gang Zhang, Emilio M. Ungerfeld, Kang Le Yi, Bai Zhong Zhang, Liang Long, Yun Long, Ye Tao, Tao Huang, Chris Greening, Zhi Liang Tan, Min Wang
Summary: This study investigates the effect of dietary carbohydrates on hydrogen metabolism and methane production in rumen microbiota of beef cattle. The results show that a fiber-rich diet selects for fibrolytic bacteria and methanogens, leading to increased fiber utilization and reduced methane production. On the other hand, a starch-rich diet selects for amylolytic bacteria and lactate utilizers, maintaining a healthy rumen and decreasing methane production. These findings provide insights into energy harvesting strategies, rumen maintenance, and methane mitigation in ruminants.
Article
Food Science & Technology
Xiaoli Zhang, Jian Wu, Chuanshe Zhou, Min Wang, Zhiliang Tan, Jinzhen Jiao
Summary: This study aimed to explore the temporal accumulative process of functional components and their dynamic regulatory metabolic pathways in the longissimus during growth in goats. The results showed that the longissimus exhibited synchronously increased intermuscular fat content, cross-sectional area, and fast- to slow-switch fiber ratio during the growth period. The functional components and transcriptomic pathways of the longissimus exhibited two distinct phases, with genes related to de novo lipogenesis contributing to the accumulation of palmitic acid in the first phase, and genes involved in fatty acid elongation and desaturation driving the accumulation of oleic acid, linoleic acid, and linolenic acid in the second phase.
