Article
Genetics & Heredity
Bruno G. N. Andrade, Flavia A. Bressani, Rafael R. C. Cuadrat, Taina F. Cardoso, Jessica M. Malheiros, Priscila S. N. de Oliveira, Juliana Petrini, Gerson B. Mourao, Luiz L. Coutinho, James M. Reecy, James E. Koltes, Adhemar Z. Neto, Sergio R. de Medeiros, Alexandre Berndt, Julio C. P. Palhares, Haithem Afli, Luciana C. A. Regitano
Summary: The study showed that the composition of feed greatly influenced the abundance and diversity of ruminal and stool microbial populations in Nelore breed ruminants. Specific ASVs were associated with the host's residual methane emission and residual feed intake, suggesting their potential as intervention targets or biomarkers. Ruminal ASVs were expected to influence CH4 emission and RFI, while the relationship of stool taxa like Alistipes and Rikenellaceae with these traits was not previously reported and might be linked to host health.
FRONTIERS IN GENETICS
(2022)
Article
Agriculture, Dairy & Animal Science
Yawei Zhang, Fuyong Li, Yanhong Chen, Le-Luo Guan
Summary: This study assessed the effects of breed and feed efficiency on rumen microbiota in beef steers. The results showed that breed has an effect on microbial groups, with previous studies focusing mainly on bacteria and archaea. This study is the first to reveal the effect of breed (host genetics) on rumen eukaryotes, highlighting the potential of manipulating and obtaining desirable rumen microbiota using breeding and genetic selection.
Review
Agriculture, Dairy & Animal Science
Sang Weon Na, Le Luo Guan
Summary: This review discusses the relationship between rumen microbiota and cattle feed efficiency, emphasizing the importance of rumen epithelium and epimural microbiota in feed efficiency.
Article
Green & Sustainable Science & Technology
Mian Wei, Hui Zhou, Jiliang Ma, Nawab Khan, Jianmin Cao, Xiangdong Hu
Summary: The overuse of feed in China's animal husbandry needs more attention. The study shows that the feed utilization efficiency has gradually improved with technological development, and there are differences in feed utilization efficiency among different scales of farmers in different years. The largest scale does not necessarily represent the best efficiency, and the gap between different scales is narrowing.
Article
Microbiology
Miika Tapio, Daniel Fischer, Paivi Mantysaari, Ilma Tapio
Summary: Efficient feed utilization in dairy cows was evaluated based on rumen microbial data in this study. It was found that taxonomic variation in the microbial community can predict feed efficiency, and efficient animals had more highly interacting microbes and consortia. Furthermore, differences in metabolic pathways between efficient and inefficient rumen were observed, with the efficient group emphasizing bacterial environmental sensing and motility.
Article
Biotechnology & Applied Microbiology
Gabriela Ribeiro, Fernando Baldi, Aline S. M. Cesar, Pamela A. Alexandre, Elisa Peripolli, Jose B. S. Ferraz, Heidge Fukumasu
Summary: In this study, potential functional variants (PFVs) for feed efficiency in beef cattle were identified using a systems-biology driven approach and deep molecular phenotyping. The PFVs showed tissue-specific effects on protein expression and were enriched for genes involved in antigen processing and presentation. The experimental validation of these PFVs improved the prediction accuracy for feed efficiency. This approach has great potential for genetic prediction of polygenic phenotypes.
Review
Agriculture, Dairy & Animal Science
Longteng Ma, Lifen Wang, Zixi Zhang, Dingfu Xiao
Summary: This paper summarizes the classification, function, application, and existing issues of biological feed in livestock and poultry production, providing a reference for future research and applications. Biological feed is a feed product developed through bioengineering technologies such as fermentation engineering, enzyme engineering, protein engineering, and genetic engineering. It has functional characteristics of high nutritional value and good palatability, which can improve feed utilization, replace antibiotics, enhance the health level of livestock and poultry, improve the quality of livestock products, and promote a better breeding environment. The article provides a comprehensive review on the types of biological feed, their mechanism of action, fermenting strains, fermenting raw material resources, and their current status in animal production to facilitate in-depth research and development of applications.
Article
Agronomy
Lydia J. Farrell, Stephen T. Morris, Paul R. Kenyon, Peter R. Tozer
Summary: The liveweight of New Zealand beef cows has increased due to selection for higher growth rates, but efficiency of beef cow production decreases with increasing cow liveweight. Heavier cows may be more profitable with consistent calf production efficiency, but less profitable according to published efficiency data. The heaviest cows may not be optimal for New Zealand hill country conditions based on potential economic impacts.
Article
Agriculture, Dairy & Animal Science
Cori J. Siberski-Cooper, James E. Koltes
Summary: Sensors, high-throughput measurements, and other data sources can provide frequent and novel information on dairy cow feed intake. Applying predictive algorithms would allow for the selection of animals that consume less feed while producing the same amount of milk, leading to reduced production costs, improved animal health, and decreased environmental impact. Establishing the relationship between measurements and feed intake and developing prediction equations are necessary for the implementation of these tools.
Article
Biotechnology & Applied Microbiology
Kampanat Phesatcha, Krittika Chunwijitra, Burarat Phesatcha, Metha Wanapat, Anusorn Cherdthong
Summary: Supplementing Thai native beef cattle with dry yeast (Saccharomyces cerevisiae) improved feed intake, fiber digestibility, rumen fermentation, and reduced methane production. This study showed that the addition of dry yeast to cattle feed can have positive effects on overall feed efficiency and methane emissions.
FERMENTATION-BASEL
(2021)
Article
Microbiology
Xiaopeng Qu, Sayed Haidar Abbas Raza, Yanqing Zhao, Jiahan Deng, Jing Ma, Juze Wang, Nada Alkhorayef, Samia S. Alkhalil, Sameer D. Pant, Hongtao Lei, Linsen Zan
Summary: This study aimed to evaluate the effect of supplementing cattle feed with tea saponins on ruminal bacteria and fungi. Results show that tea saponin supplementation can increase the proportion of total volatile fatty acids and propionate in the rumen, decrease bacterial diversity, and have a significant impact on the relative abundance of certain bacteria. These findings provide a theoretical basis for using tea saponins instead of antibiotics to promote cattle growth.
Article
Agriculture, Dairy & Animal Science
Silvia Grossi, Luciana Rossi, Matteo Dell'Anno, Stefano Biffani, Carlo Angelo Sgoifo Rossi
Summary: Research has shown that drinking heated water can significantly improve growth performance and feed intake in fattening beef cattle, while also enhancing ruminal stability.
Article
Veterinary Sciences
Huazhe Si, Hanlu Liu, Weixiao Nan, Guangyu Li, Zhipeng Li, Yujie Lou
Summary: This study showed that arginine supplementation had significant effects on antler growth, serum biochemical indices, and rumen bacterial community of sika deer, especially in the low-dose and high-dose groups.
FRONTIERS IN VETERINARY SCIENCE
(2021)
Article
Genetics & Heredity
Mehrnush Forutan, Andrew Lynn, Hassan Aliloo, Samuel A. Clark, Peter McGilchrist, Rod Polkinghorne, Ben J. Hayes
Summary: Phenotype predictions of beef eating quality can be used to assign animals to different feeding regimes based on predicted quality, and to sort carcasses for different market value. The predictions involve genetic effects (breed, heterosis, breeding value) predicted from genetic markers, as well as fixed effects such as days aged and carcass weight.
FRONTIERS IN GENETICS
(2023)
Article
Biotechnology & Applied Microbiology
Yalei Cui, Hua Liu, Zimin Gao, Junying Xu, Boshuai Liu, Ming Guo, Xu Yang, Jiakuan Niu, Xiaoyan Zhu, Sen Ma, Defeng Li, Yu Sun, Yinghua Shi
Summary: It has been found that compared to corn straw silage, whole-plant corn silage can improve the growth performance and rumen fermentation of beef cattle. This improvement is achieved by altering the rumen microbiota and regulating the metabolism of amino acids, carbohydrates, and nucleotides.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2022)
Meeting Abstract
Biochemistry & Molecular Biology
Bohye Park, Ji Yeon Kim, Olivia F. Riffey, Antje Bruckbauer, James McLoughlin, Ahmed Bettaieb, Dallas R. Donohoe
Meeting Abstract
Biochemistry & Molecular Biology
Ji Yeon Kim, Bohye Park, Ahmed Bettaieb, Dallas R. Donohoe
Meeting Abstract
Physiology
Ji Yeon Kim, Bohye Park, Olivia Riffey, Dallas Donohoe
Article
Agriculture, Dairy & Animal Science
Kiernan J. Brandt, Taylor B. Ault-Seay, Rebecca R. Payton, Liesel G. Schneider, J. Lannett Edwards, Phillip R. Myer, Justin D. Rhinehart, Kyle J. McLean
Summary: Replacement heifer development is critical for beef production. Identifying the ideal uterine environment and understanding the influence of diet can improve reproductive efficiency. Protein supplementation has minimal impact on uterine amino acid concentrations, but it can affect uterine luminal fluid composition on day 14 post-insemination, potentially impacting conception rates.
Review
Microbiology
Macey P. Soltis, Sarah E. Moorey, Amanda M. Egert-McLean, Brynn H. Voy, Elizabeth A. Shepherd, Phillip R. Myer
Summary: The rumen is a vital organ for converting low-quality feedstuffs into energy. The rumen microbiome and its interaction with the host play a key role in this process. However, previous studies have mainly focused on specific regions within the rumen, which may not provide a comprehensive analysis of the rumen microbiome and its fermentative capacity. This review highlights the importance of rumen biogeography and its contribution to microbiome variation.
Article
Multidisciplinary Sciences
Yunyi Zhang, Claudia A. Kirk, M. Katherine Tolbert, Jorg M. Steiner, Dallas Donohoe, Maryanne Murphy, Cary Springer, Angela Witzel-Rollins
Summary: The study suggests that different types of dietary fat have little acute impact on most markers of exocrine pancreatic stimulation in healthy dogs, except for serum triglyceride concentrations.
Review
Veterinary Sciences
Alison P. Pfau, Elizabeth A. Shepherd, M. Gabbi Martin, Sophia Ascolese, Katie M. Mason, Amanda M. Egert-McLean, Brynn H. Voy, Phillip R. Myer
Summary: The beef industry is facing the challenge of increasing protein supply to a growing global population. Improving nutrient use efficiency and addressing the rumen microbial community are important for enhancing the sustainability of the industry. Beta-adrenergic agonists and dietary protein play critical roles in beef cattle production, with beta-agonists enhancing growth and feed efficiency, and dietary protein providing necessary nutrients. By optimizing rumen fermentation, diet, and growth-promoting technologies, the industry can improve energy capture and performance. Research and development in this field can lead to innovative solutions that benefit both producers and the environment.
VETERINARY SCIENCES
(2023)
Article
Biology
Brooke A. Clemmons, Taylor B. Ault-Seay, Madison T. Henniger, M. Gabbi Martin, Pierre-Yves Mulon, David E. Anderson, Brynn H. Voy, Kyle J. McLean, Phillip R. Myer
Summary: Blood chemistry may provide indicators of feed efficiency in cattle. A study was conducted to investigate the variation in blood chemistry between high- and low-residual feed intake (RFI) beef cattle. The results showed that high-RFI heifers had higher blood urea nitrogen (BUN) levels, indicating inefficient protein utilization, while low-RFI heifers had higher blood glucose concentrations, suggesting greater utilization of energy precursors. These findings suggest that there are measurable indicators of nutrient utilization in cattle, but further research is needed to explore this.
BMC RESEARCH NOTES
(2023)
Article
Agriculture, Dairy & Animal Science
Macey P. P. Soltis, Madison T. T. Henniger, Amanda M. M. Egert-McLean, Brynn H. H. Voy, Sarah E. E. Moorey, Liesel G. G. Schnieder, Elizabeth A. A. Shepherd, Courtney Christopher, Shawn R. R. Campagna, Joe S. S. Smith, Pierre-Yves Mulon, David E. E. Anderson, Phillip R. R. Myer
Summary: The rumen microbiome plays a critical role in the health and nutrition of its host by converting low-quality feedstuffs into energy. This study examined the microbial communities and metabolites in different regions of the rumen. While the fiber-adherent microbial communities showed similarity, planktonic and epimural fractions may require multiple sampling to obtain a comprehensive analysis. Understanding these variabilities is essential for defining host-microbiome interactions.
FRONTIERS IN ANIMAL SCIENCE
(2023)
Review
Agriculture, Dairy & Animal Science
Taylor B. Ault-Seay, Sarah E. Moorey, Daniel J. Mathew, F. Neal Schrick, Ky G. Pohler, Kyle J. McLean, Phillip R. Myer
Summary: The reproductive tract microbiome has been studied using culture-independent sequencing methods. Previous research in cows focused on uterine bacteria associated with postpartum disease, but next generation sequencing identified a normal bacterial community in the reproductive tract. These bacterial communities play important roles in maintaining a healthy uterine environment.
FRONTIERS IN ANIMAL SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Nicholas B. B. Gill, Presley D. D. Dowker-Key, Katelin Hubbard, Brynn H. H. Voy, Jay Whelan, Mark Hedrick, Ahmed Bettaieb
Summary: By 2050, it is estimated that at least 700 million people will need hearing therapy, while 2.5 billion will suffer from hearing loss. Sensorineural hearing loss (SNHL) is caused by the death of cochlear hair cells in the inner ear, resulting in the inability to convert fluid waves into neural electric signals. Phytochemicals, such as ginsenosides found in ginseng, have shown potential in treating SNHL due to their anti-inflammatory, antioxidant, and anti-apoptotic properties. In this study, the effects of ginsenoside Rc (G-Rc) on primary murine sensory hair cell survival were investigated, and the results demonstrated that G-Rc promoted cell survival, differentiation, and reduced inflammation, endoplasmic reticulum stress, and apoptosis. Further studies are needed to explore the molecular mechanisms of G-Rc as a potential adjuvant for SNHL.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Meeting Abstract
Agriculture, Dairy & Animal Science
Phillip R. Myer
JOURNAL OF ANIMAL SCIENCE
(2023)
Meeting Abstract
Pharmacology & Pharmacy
Katelin Hubbard, Mohammed Alquraishi, Samah Chahed, Dina Alani, Dexter Puckett, Presley Dowker-Key, Yi Zhao, Ji Yeon Kim, Laurentia Nodit, Huma Fatima, Dallas Donohoe, Brynn Voy, Jay N. Whelan, Winyoo Chowanadisai, Ahmed Bettaieb
JOURNAL OF PHARMACOLOGY AND EXPERIMENTAL THERAPEUTICS
(2023)
