PMID- 34754960 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20211111 IS - 2405-6383 (Electronic) IS - 2405-6545 (Print) IS - 2405-6383 (Linking) VI - 7 IP - 4 DP - 2021 Dec TI - Rumen-protected glucose supplementation in transition dairy cows shifts fermentation patterns and enhances mucosal immunity. PG - 1182-1188 LID - 10.1016/j.aninu.2021.08.002 [doi] AB - Manipulation of perinatal diets, such as supplementing feed with rumen-protected glucose (RPG), has been positively regarded as a strategy to improve milking performance. This study was conducted to assess the effects of RPG on the fermentation profiles, resident microbiota and mucosal immunity in the cecum. Ten Holstein dairy cows were randomly assigned to either a 25 g/kg RPG diet (DM basis) or a 11 g/kg coating fat diet (control, CON). Compared with the CON group, the acetate-to-propionate ratio was lower in the RPG group. Gene expression analysis indicated that RPG supplementation tended to upregulate the expression of Na(+)/H(+) hydrogen exchanger 3 (NHE3) (P = 0.076). RPG supplementation downregulated the expression of genes involved in self-rehabilitation such as matrix metalloproteinase 1 (MMP1), MMP3, MMP9 and MMP13. Additionally, the mRNA expression of genes involved in immunity including Toll-like receptors (TLR4, TLR6 and TLR7) and proinflammatory cytokines (immune interferon gamma [IFNG] and interleukins interleukin 17A [IL17F], IL17A, IL22), was downregulated by RPG supplementation. Nonetheless, no differences existed in the bacterial copy number and beta diversity between the 2 groups. Overall, supplementation with RPG would probably cause a shift towards propionate production in the cecal digesta, and promote the immune homeostasis of the cecal mucosa in transition dairy cows. Our results extended the basic understanding of RPG supplementation and utilization in transition dairy cows in terms of host microbe interplay in the cecum. CI - (c) 2021 Chinese Association of Animal Science and Veterinary Medicine. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. FAU - Zhang, Xiaoli AU - Zhang X AD - CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, 410125, China. AD - University of the Chinese Academy of Sciences, Beijing, 100049, China. FAU - Li, Xiaopeng AU - Li X AD - CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, 410125, China. FAU - Wu, Jian AU - Wu J AD - CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, 410125, China. AD - University of the Chinese Academy of Sciences, Beijing, 100049, China. FAU - Jiao, Jinzhen AU - Jiao J AD - CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, 410125, China. FAU - He, Zhixiong AU - He Z AD - CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, 410125, China. FAU - Tan, Zhiliang AU - Tan Z AD - CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, 410125, China. FAU - Han, Xuefeng AU - Han X AD - CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, 410125, China. LA - eng PT - Journal Article DEP - 20211002 PL - China TA - Anim Nutr JT - Animal nutrition (Zhongguo xu mu shou yi xue hui) JID - 101717655 PMC - PMC8556486 OTO - NOTNLM OT - Cecum OT - Fatty acid metabolism OT - Fermentation OT - Microbiota OT - Rumen-protected glucose COIS- We declare that we have no financial and personal relationships with other people or organizations that can inappropriately influence our work, and there is no professional or other personal interest of any nature or kind in any product, service and/or company that could be construed as influencing the content of this paper. EDAT- 2021/11/11 06:00 MHDA- 2021/11/11 06:01 PMCR- 2021/10/02 CRDT- 2021/11/10 06:47 PHST- 2020/10/15 00:00 [received] PHST- 2021/07/23 00:00 [revised] PHST- 2021/08/03 00:00 [accepted] PHST- 2021/11/10 06:47 [entrez] PHST- 2021/11/11 06:00 [pubmed] PHST- 2021/11/11 06:01 [medline] PHST- 2021/10/02 00:00 [pmc-release] AID - S2405-6545(21)00166-9 [pii] AID - 10.1016/j.aninu.2021.08.002 [doi] PST - ppublish SO - Anim Nutr. 2021 Dec;7(4):1182-1188. doi: 10.1016/j.aninu.2021.08.002. Epub 2021 Oct 2.