Article
Microbiology
Boxue Si, Kaizhen Liu, Guoxin Huang, Meiqing Chen, Jiyong Yang, Xufang Wu, Ning Li, Wenhao Tang, Shengguo Zhao, Nan Zheng, Yangdong Zhang, Jiaqi Wang
Summary: The variation of milk fat is closely related to rumen bacteria, and certain rumen bacteria have a potential impact on the deposition of specific fatty acids in raw milk.
FRONTIERS IN MICROBIOLOGY
(2023)
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
Agriculture, Dairy & Animal Science
N. A. Carpinelli, J. Halfen, E. Trevisi, J. D. Chapman, E. D. Sharman, J. L. Anderson, J. S. Osorio
Summary: Results of the study showed that feeding dairy cows a commercial yeast culture product can increase milk yield and feed intake, reduce somatic cell counts, and have an impact on rumen fermentation and bacterial population.
JOURNAL OF DAIRY SCIENCE
(2021)
Article
Agriculture, Dairy & Animal Science
Yangchun Cao, Dangdang Wang, Lamei Wang, Xiaoshi Wei, Xiaoyong Li, Chuanjiang Cai, Xinjian Lei, Junhu Yao
Summary: Increasing the concentration of physically effective neutral detergent fiber (peNDF) in diets can reduce the risk of subacute ruminal acidosis (SARA) in dairy cows. High peNDF(8.0) diet decreased the number of meals per day, increased chewing and ruminating times, and improved rumen fluid pH and fermentation characteristics.
JOURNAL OF DAIRY SCIENCE
(2021)
Article
Agriculture, Dairy & Animal Science
Z. Wang, L. Liu, F. Pang, Z. Zheng, Z. Teng, T. Miao, T. Fu, H. E. Rushdi, L. Yang, T. Gao, F. Lin, S. Liu
Summary: This study investigated differential heat resistance in Holstein cows using rumen bacterial and metabolome analyses. The results showed that heat-tolerant cows had higher propionic acid content and lower respiratory rate, acetic acid, and butyric acid compared to heat-sensitive cows under heat stress conditions. The composition of rumen microbiota and metabolites also differed significantly between the two groups. These findings suggest that rumen microbiota and metabolomics can serve as important diagnostic tools for assessing heat tolerance in dairy cattle.
Article
Multidisciplinary Sciences
Keith W. Savinid, Peter J. Moate, S. R. O. Williams, Carolyn Bathid, Joanne Hemsworth, Jianghui Wang, Doris Ram, Jody Zawadzki, Simone Rochfort, Benjamin G. Cocks
Summary: Feeding trials in dairy cows have shown that wheat-based diets can reduce methane production. Analysis of the rumen microbiome revealed that certain bacterial species preferentially grow in wheat-fed cows and are associated with reduced methane yield. These findings suggest the potential for developing wheat-associated bacteria as anti-methane probiotics.
Article
Microbiology
Sara M. Tondini, Roderick I. Mackie, Joshua C. McCann
Summary: Researchers developed polyclonal antibodies to inhibit the growth of targeted cellulolytic bacteria, with limited effects on non-targeted strains. These validated polyclonal antibodies can effectively modify rumen bacterial populations.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Microbiology
Yingyu Mu, Wangpan Qi, Tao Zhang, Jiyou Zhang, Shengyong Mao
Summary: The study found that high-grain feeding can induce subacute ruminal acidosis (SARA) in dairy cows, resulting in thickened rumen epithelial papilla with edge injury and decreased plasma beta-hydroxybutyrate concentration. 16S rRNA gene sequencing results showed that high-grain feeding caused changes in rumen bacterial structure and composition, while metabolomics analysis indicated the enrichment of certain detrimental metabolites in rumen fluid and the upregulation of cholesterol biosynthesis genes in rumen epithelium.
Article
Agronomy
Sonny C. Ramos, Chang-Dae Jeong, Lovelia L. Mamuad, Seon-Ho Kim, A-Rang Son, Michelle A. Miguel, Mahfuzul Islam, Yong-Il Cho, Sang-Suk Lee
Summary: This study investigated the effects of rumen buffer agents on ruminal fermentation parameters and bacterial community composition using in vitro and in vivo experiments. The buffer agents were found to stabilize ruminal pH, improve fermentation, and alter bacterial community, potentially preventing ruminal acidosis induced by high-concentrate diets in dairy cows.
Article
Microbiology
Shuai Huang, Shoukun Ji, Garret Suen, Feiran Wang, Shengli Li
Summary: The rumen microbiome composition influences dry matter intake and milk yield in dairy cows, especially during the early lactation period. Higher levels of VFA-producing microbes were found in cows 14 days after calving, correlating with increased concentrations of acetate, propionate, butyrate, valerate, and total VFAs. The differences in rumen microbiota between low and high dry matter intake cows were limited but specific bacterial families were altered based on DMI levels.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Microbiology
Benchu Xue, Mei Wu, Shuangming Yue, Anhai Hu, Xiang Li, Qionghua Hong, Zhisheng Wang, Lizhi Wang, Quanhui Peng, Bai Xue
Summary: This study aimed to investigate the effects of dietary physically effective neutral detergent fiber (peNDF) on the growth performance and rumen bacterial communities in goats. The results showed that an optimal peNDF level between 26.5% and 28.1% improved goat growth performance, rumen development, and influenced the composition of rumen bacterial communities.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Food Science & Technology
Fengfei Gu, Shuling Liang, Senlin Zhu, Jianxin Liu, Hui-Zeng Sun
Summary: This study found that supplementation of dairy cows with RPM led to a significant increase in milk fat content and yield, as well as changes in milk metabolites. The research also revealed the connection between key rumen bacteria after RPM supplementation and functional nutrients in milk.
FOOD RESEARCH INTERNATIONAL
(2021)
Article
Agriculture, Dairy & Animal Science
J. Halfen, N. Carpinelli, F. A. B. Del Pino, J. D. Chapman, E. D. Sharman, J. L. Anderson, J. S. Osorio
Summary: The continuous trend of narrowing margin between feed costs and milk prices in the US dairy industry underlines the importance of improving and maintaining feed efficiency. Yeast culture supplements have been evaluated for their effects on milk production and feed efficiency, but their impact on rumen microbial populations and fermentation is not well understood. This study aimed to assess the effects of yeast culture supplementation on lactation performance, rumen fermentation, and abundance of ruminal bacteria in dairy cows.
JOURNAL OF DAIRY SCIENCE
(2021)
Article
Agricultural Engineering
Zhijie Xie, Xianghui Meng, Hongxia Ding, Qin Cao, Yichao Chen, Xiaofeng Liu, Dong Li
Summary: The addition of rumen cellulolytic bacteria and activated carbon can enhance methane production during thermophilic digestion of cornstalk, with the best performance achieved when both are present simultaneously. This improvement is attributed to the synergistic effect of the enriched bacteria working together.
BIORESOURCE TECHNOLOGY
(2021)
Article
Microbiology
Jinjia Zhu, Yicheng Wu, Aoyu Jiang, Bin Li, Tao Ran, Chuanshe Zhou, Dingfu Xiao, Zhiliang Tan
Summary: This study investigated the effects of N-carbamylglutamic acid (NCG) supplementation on rumen microbiota of Holstein dairy cows in the Himalayan region. The results showed that NCG supplementation can lower ruminal NH3-N concentration, increase the production of acetic acid and total volatile fatty acids, and enhance microbial diversity. These findings indicate that the use of NCG can improve the adaptability and production performance of dairy cows in the high-altitude hypoxia environment.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Statistics & Probability
Mohammadreza Nassiri, Mahdi Elahi Torshizi, Shahrokh Ghovvati, Mohammad Doosti
JOURNAL OF APPLIED STATISTICS
(2018)
Article
Biochemical Research Methods
Ali Forouharmehr, Mohammadreza Nassiri, Shahrokh Ghovvati, Ali Javadmanesh
CURRENT PROTEOMICS
(2018)
Article
Agriculture, Dairy & Animal Science
Seyed Mohsen Hosseini, Mohsen Danesh Mesgaran, Ali Reza Vakili, Abbas Ali Naserian, Ehsan Khafipour
ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES
(2019)
Article
Biochemistry & Molecular Biology
Farid Vahedi, Mohammadreza Nassiri, Shahrokh Ghovvati, Ali Javadmanesh
INTERNATIONAL JOURNAL OF PEPTIDE RESEARCH AND THERAPEUTICS
(2019)
Article
Biochemistry & Molecular Biology
Shahrokh Ghovvati, Zahra Pezeshkian, Seyed Ziaeddin Mirhoseini
ACTA BIOCHIMICA POLONICA
(2018)
Article
Agriculture, Dairy & Animal Science
Fereshteh Alipour, Alireza Vakili, Mohsen Danesh Mesgaran, Hadi Ebrahimi
ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES
(2019)
Article
Biochemistry & Molecular Biology
A. Doozandeh-Juibari, S. Ghovvati, H. R. Vaziri, M. M. Sohani, Z. Pezeshkian
INTERNATIONAL JOURNAL OF PEPTIDE RESEARCH AND THERAPEUTICS
(2020)
Article
Cell Biology
Ali Forouharmehr, Mohammadreza Nassiri, Shahrokh Ghovvati Roudsari, Ali Javadmanesh
JOURNAL OF CELLULAR PHYSIOLOGY
(2020)
Article
Biochemistry & Molecular Biology
H. Darsaraei, S. Ghovvati, S. A. Khodaparast
INTERNATIONAL JOURNAL OF PEPTIDE RESEARCH AND THERAPEUTICS
(2020)
Article
Agriculture, Dairy & Animal Science
Zahra Pezeshkian, Seyed Ziaeddin Mirhoseini, Shahrokh Ghovvati
Summary: In this study, candidate genes associated with divergent apparent metabolizable energy in chickens were identified through bioinformatics analysis. Important biological pathways and gene modules related to feed efficiency were successfully identified, and core genes closely related to apparent metabolizable energy in chickens were determined. These core genes can serve as biomarkers for apparent metabolizable energy and feed efficiency in chickens.
ANIMAL BIOTECHNOLOGY
(2022)
Article
Food Science & Technology
Marzieh Hajmohammadi, Reza Valizadeh, Abassali Naserian, Mohammad E. Nourozi, Carlos A. F. Oliveira
Summary: The study found that using raw mineral clays with appropriate particle sizes can effectively reduce the content of AFM(1) in dairy cow milk, with a reduction effect equivalent to commercial adsorbents. This method can provide a more economical alternative to reduce the transfer rate of AFM(1) to dairy cow milk.
INTERNATIONAL JOURNAL OF DAIRY TECHNOLOGY
(2021)
Article
Agriculture, Dairy & Animal Science
Reza Naseroleslami, Mohsen Danesh Mesgaran, Abdolmansour Tahmasbi, Alireza Vakili, Sadjad Danesh Mesgaran
Summary: The study investigated the effects of diets containing untreated or processed barley grain on lactating Holstein cows, and found that processed barley grain could improve milk production indices of dairy cows, including increasing daily production of milk fat, protein, lactose, and total solids.
JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION
(2022)
Review
Psychiatry
Kourosh Sayemiri, Hamed Tavan, Masoumeh Shohani, Reza Valizadeh
Summary: Self-immolation is a violent form of suicide and a psychosocial issue. A systematic review and meta-analysis were conducted to investigate self-immolation in Iran, showing a mortality rate of 64%, with oil being the most common method and winter being the peak season for incidents. Meta-regression found no significant correlation between self-immolation mortality and year of study.
IRANIAN JOURNAL OF PSYCHIATRY AND BEHAVIORAL SCIENCES
(2021)
Article
Veterinary Sciences
Zohreh Zarnegar, Seyed Hadi Ebrahimi, Abbas Ali Naserian, Reza Valizadeh
TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES
(2019)
Article
Agriculture, Dairy & Animal Science
V. Vosooghi-Postindoz, A. Tahmasbi, A. A. Naserian, R. Valizade, H. Ebrahimi
IRANIAN JOURNAL OF APPLIED ANIMAL SCIENCE
(2018)