{"title":"Subacute ruminal acidosis (SARA) challenge, ruminal condition and cellular immunity in cattle.","authors":"Shigeru Sato","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>Subacute ruminal acidosis (SARA) is characterized by repeated bouts of low ruminal pH. Cows with SARA often develop complications or other diseases, and associate physiologically with immunosuppression and inflammation. Ruminal free lipopolysaccharide (LPS) increases during SARA and translocates into the blood circulation activating an inflammatory response. Ruminal fermentation and cellular immunity are encouraged by supplementing hay with calf starter during weaning. SARA calves given a 5-day repeated administration of a bacteria-based probiotic had stable ruminal pH levels (6.6-6.8). The repeated administration of probiotics enhance cellular immune function and encourage recovery from diarrhea in pre-weaning calves. Furthermore, the ruminal fermentation could guard against acute and short-term feeding changes, and changes in the rumen microbial composition of SARA cattle might occur following changes in ruminal pH. The repeated bouts of low ruminal pH in SARA cattle might be associated with depression of cellular immunity.</p>","PeriodicalId":56285,"journal":{"name":"Japanese Journal of Veterinary Research","volume":null,"pages":null},"PeriodicalIF":0.4000,"publicationDate":"2015-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Japanese Journal of Veterinary Research","FirstCategoryId":"97","ListUrlMain":"","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"VETERINARY SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Subacute ruminal acidosis (SARA) is characterized by repeated bouts of low ruminal pH. Cows with SARA often develop complications or other diseases, and associate physiologically with immunosuppression and inflammation. Ruminal free lipopolysaccharide (LPS) increases during SARA and translocates into the blood circulation activating an inflammatory response. Ruminal fermentation and cellular immunity are encouraged by supplementing hay with calf starter during weaning. SARA calves given a 5-day repeated administration of a bacteria-based probiotic had stable ruminal pH levels (6.6-6.8). The repeated administration of probiotics enhance cellular immune function and encourage recovery from diarrhea in pre-weaning calves. Furthermore, the ruminal fermentation could guard against acute and short-term feeding changes, and changes in the rumen microbial composition of SARA cattle might occur following changes in ruminal pH. The repeated bouts of low ruminal pH in SARA cattle might be associated with depression of cellular immunity.
期刊介绍：
The Japanese Journal of Veterinary Research (JJVR) quarterly publishes peer-reviewed articles on all aspects of veterinary science. JJVR was originally published as a “University Journal” of veterinary science at Hokkaido University from more than 60 years ago. Currently, JJVR, is Japan’s leading scientific veterinary journal, and provides valuable information for the development of veterinary science by welcoming contributions from researchers worldwide.
JJVR offers online submission for Regular Papers, Short Communications, and Review Articles that are unpublished and not being considered for publication elsewhere. Research areas include:
Anatomy, Physiology, Biochemistry, Pharmacology, Microbiology, Infectious diseases, Parasitology, Laboratory Animal Science and Medicine, Internal Medicine, Surgery, Pathology, Theriogenology, Molecular Medicine, Public Health, Radiation Biology, Toxicology, Wildlife Biology and Medicine, Veterinary Hygiene, The other fields related to veterinary science.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
