Article
Biotechnology & Applied Microbiology
Amin Omar Hendawy, Satoshi Sugimura, Kan Sato, Mohamed Mohsen Mansour, Ayman H. Abd El-Aziz, Haney Samir, Md. Aminul Islam, A. B. M. Rubayet Bostami, Ahmed S. Mandour, Ahmed Elfadadny, Rokaia F. Ragab, Hend A. Abdelmageed, Amira Mohammed Ali
Summary: Enzymes excreted by rumen microbiome help convert plant materials into nutrients required for animal growth. Factors such as diet, animal age, and health affect the structure of the rumen microbial community. The use of natural supplements, including selenium, has been explored to enhance rumen microbial nutrient supply. This review focuses on the effects of selenium on specific rumen microorganisms, fermentation, and digestibility. Positive effects on various parameters were observed, with selenium nanoparticles showing higher effectiveness. Further studies comparing synthetic selenium nanoparticles and probiotics enriched with sodium selenite are needed.
FERMENTATION-BASEL
(2022)
Article
Chemistry, Applied
Xing Zhang, Hui He, Jiqian Xiang, Bin Li, Mengge Zhao, Tao Hou
Summary: The study showed that antioxidative peptides from selenium-containing soybeans exhibit high cellular antioxidant activity and protective effects against oxidative stress-related diseases. These peptides can be efficiently absorbed and reverse inflammatory responses in cells, while also inhibiting brain oxidative stress. Comparing with other forms of selenium, the synergistic effects of selenium and peptides in antioxidant activity were highlighted in this study.
Article
Nutrition & Dietetics
Piotr Bawiec, Jan Sawicki, Paulina Lasinska-Pracuta, Marcin Czop, Ireneusz Sowa, Katarzyna Ilowiecka, Wojciech Koch
Summary: Bioavailability refers to the fraction of a substance that is absorbed from the gastrointestinal tract and enters the bloodstream. This study aimed to assess the bioavailability of selenium (Se) from dietary supplements and explore the influence of diet type on relative bioavailability. The research used a two-stage in vitro digestion model to simulate the digestion of food containing dietary supplements. Selenium bioavailability ranged from 19.31% to 66.10% in the presence of food matrix. Sodium selenate had the highest bioavailability, followed by organic forms and sodium selenite. The basic diet with moderate protein and high carbohydrate and fiber content positively influenced Se bioavailability. The pharmaceutical form of the product also affected bioavailability, with tablets having the highest bioavailability, followed by capsules and coated tablets.
Article
Agriculture, Dairy & Animal Science
Eslam Ahmed, Belgutei Batbekh, Naoki Fukuma, Deepashree Kand, Masaaki Hanada, Takehiro Nishida
Summary: The study showed that animals supplemented with Mootral exhibited improved feeding behavior, reduced non-nutritive behaviors, and decreased methane emissions without negative impacts on feed intake or rumen fermentation, making it a promising natural supplement for reducing methane emissions from ruminants.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2021)
Article
Agriculture, Dairy & Animal Science
A. T. Richards, J. R. Knapp, P. Summer, Y. Ohta, J. P. Boerman
Summary: The study aimed to evaluate the bioavailability of a rumen-protected Met product and its impact on milk production and body composition in dairy cows. The findings showed that the Met product reduced milk selenium concentration and had effects on milk production and composition.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Andrea H. Clarkson, Stuart W. Paine, Nigel R. Kendall
Summary: The study investigated the antagonism between sulfur, iron, and copper under in vitro rumen simulated conditions and found that no insoluble compound containing copper and iron was formed under these conditions, indicating the need for the complexity of the in vivo rumen environment to elicit the reaction between copper, iron, and sulfur.
JOURNAL OF TRACE ELEMENTS IN MEDICINE AND BIOLOGY
(2021)
Article
Veterinary Sciences
Xueyan Lin, Lin Ju, Qianjin Cheng, Yue Jiang, Qiuling Hou, Zhiyong Hu, Yun Wang, Zhonghua Wang
Summary: This study investigates the effects of host and dietary factors on the composition, diversity, and metabolism of rumen flora. The results show that different host species and feed types have an impact on the abundance and diversity of rumen bacteria, which in turn can affect host metabolism.
FRONTIERS IN VETERINARY SCIENCE
(2023)
Article
Agriculture, Dairy & Animal Science
Congcong Zhao, Lamei Wang, Shanlin Ke, Xinhua Chen, Akos Kenez, Wei Xu, Dangdang Wang, Fan Zhang, Yong Li, Zhanhong Cui, Yu Qiao, Jing Wang, Wenjuan Sun, Jianhua Zhao, Junhu Yao, Zhongtang Yu, Yangchun Cao
Summary: This study investigated the rumen microbiome and metabolome of plateau yak to understand how they adapt to the harsh environment and coarse forage in the Qinghai-Tibetan plateau. The results showed significant differences in the rumen microbiota and fermentation profiles between plateau yak, Qaidam yellow cattle, and dzomo. Plateau yak and dzomo had a larger gene pool encoding carbohydrate-active enzymes compared to Qaidam yellow cattle. The rumen fermentation profile also differed, with Qaidam yellow cattle having higher acetate and lower propionate levels. The findings suggest that the rumen microbiome plays a crucial role in helping plateau yak adapt to their unique habitat and dietary conditions.
Article
Microbiology
Chuntao Zhang, Tao Ma, Yan Tu, Shulin Ma, Qiyu Diao
Summary: This study aimed to understand the effects of circadian rhythm and feeding modes on rumen fermentation and microorganisms in Hu sheep. The results showed a connection between rumen fermentation and the circadian clock, and the activities of digestive enzymes and microbial diversity were influenced by circadian rhythm and feeding modes.
Article
Microbiology
Xiongxiong Cui, Zhaofeng Wang, Yuhui Tan, Shenghua Chang, Huiru Zheng, Haiying Wang, Tianhai Yan, Tsedan Guru, Fujiang Hou
Summary: The study found that the addition of Se-enriched yeast (SeY) significantly affects the abundance of rumen bacteria in Tibetan sheep, ultimately impacting rumen microbial fermentation.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Microbiology
Joan E. Edwards, Eun Joong Kim, David R. Davies, Radwa Hanafy, Alison H. Kingston-Smith
Summary: This study suggests that oral bacteria present in saliva may play an active role in the ruminal degradation of plant material. In vitro cultivation and 16S rRNA gene analysis confirmed that oral-derived bacteria can colonize plant material under ruminal conditions, with a particular emphasis on Streptococcus genus.
Article
Veterinary Sciences
Alaa Emara Rabee, Mayada M. H. Khalil, Galal Abou Khadiga, Ahmed Elmahdy, Ebrahim A. Sabra, Mohsen A. Zommara, Ibrahim M. Khattab
Summary: This study evaluated the effects of sodium selenite and bio-nanostructured selenium on rumen fermentation and structure of rumen microbial community of lactating Barki ewes. The findings suggest that Se supplementation affected the relative abundances of dominant bacterial groups, declined rumen methanogens and SeNSM supplementation showed some positive impacts on some fibrolytic bacteria.
BMC VETERINARY RESEARCH
(2023)
Article
Environmental Sciences
Yingjie Wang, Mengyu Jiang, Yunmeng Tang, Shengnan Qiu, Youran Sun, Haixia Sun
Summary: This study comprehensively evaluated the effects of simulated soil ingestion during grazing on nutrient digestibility, rumen fermentation, microflora, and mineral deposition in sheep. The findings showed that soil intake altered rumen fermentation and increased the risk of excessive iron, lead, and arsenic in the sheep's organism.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Veterinary Sciences
Shujie Li, Hanfang Zeng, Changjian Wang, Zhaoyu Han
Summary: Methionine hydroxy analogs (MHA) are commonly used in ruminant feed production, and this study explored the effects of MHA supplements on rumen microbiota and metabolome in Hu sheep. The results showed differences in volatile fatty acid concentrations and microbiota diversity among different MHA groups. Metabolomic analyses revealed alterations in various metabolites related to amino acid and carbohydrate metabolisms. This study contributes to a better understanding of the effects of MHA supplements on ruminant health.
FRONTIERS IN VETERINARY SCIENCE
(2022)
Article
Food Science & Technology
Ying Ma, Lijuan Han, Sayed Haidar Abbas Raza, Linsheng Gui, Xue Zhang, Shengzhen Hou, Shengnan Sun, Zhenzhen Yuan, Zhiyou Wang, Baochun Yang, Mohamed M. Hassan, Ruqaih S. Alghsham, Waleed Al Abdulmonem, Samia S. Alkhalil
Summary: This study investigated the effects of Palm kernel meal (PKM) on the quality and flavor of Tibetan sheep meat. The results showed that Tibetan sheep in the group supplemented with 18% PKM exhibited superior eating quality and flavor profile, along with increased protein and fat deposition. Metabolomics analysis revealed that PKM feed affected meat metabolites and metabolic pathways. Furthermore, PKM supplementation also influenced the composition of rumen microorganisms, which in turn regulated meat quality. Overall, adding PKM can improve the quality and flavor of meat through its effects on muscle metabolism and rumen microorganisms.
FOOD SCIENCE & NUTRITION
(2023)