Lying behavior and activity during the transition period of clinically healthy grazing dairy cows
نویسندگان
چکیده
منابع مشابه
Compromised liver functions during the breeding period of clinically healthy Holstein cows
Background: The sub-clinical carry-over effects of post-partum (PP) conditions and the problems independent of parturition may affect the cows’ performance during the breeding period. Aims: It was hypothesized that some mid-lactation cows may have compromised liver functions and calculating liver activity index (LAI; -1.5 to +1.5) may be helpful in detecting su...
متن کاملActivities of AST, ALT and GGT in clinically healthy dairy cows during lactation and in the dry period
STOJEVIĆ, Z., J. PIRŠLJIN, S. MILINKOVIĆ-TUR, M. ZDELAR-TUK, B. BEER LJUBIĆ: Activities of AST, ALT and GGT in clinically healthy dairy cows during lactation and in the dry period. Vet. arhiv 75, 67-73, 2005. ABSTRACT This study examined the activities of aspartate aminotransferase (AST; EC 2.6.1.1), alanine aminotransferase (ALT; EC 2.6.1.2) and gamma-glutamyltransferase (GGT; EC 2.3.2.2) in t...
متن کاملLying behavior as an indicator of lameness in dairy cows.
Lameness is widely recognized as one of the most serious welfare and production concerns in the dairy industry. Our objectives were to evaluate the associations between lying behavior and lameness, and to determine whether lying behavior can be used as a diagnostic tool for lameness. Electronic data loggers recorded lying behavior of 1,319 cows from 28 farms at 1-min intervals for 5 d. These co...
متن کاملImpacts of Metabolism and Nutrition During the Transition Period on Fertility of Dairy Cows
In early postpartum, high-producing dairy cows undergo a period of extensive tissue catabolism because of negative nutrient balance. Metabolic unbalances can lead to diseases, which are known to depress fertility in dairy cows. Negative nutrient balance has been associated with compromised immune and reproductive functions in dairy cows, and a compromised immune system leads to greater risk of ...
متن کاملDNA damage in peripheral blood mononuclear cells and neutrophils of dairy cows during the transition period
This study was designed to investigate the apoptotic process in peripheral blood mononuclear cells (PBMC) and polymorphonuclear neutrophil leukocytes (PMN) in dairy cattle during the transition period. Blood samples were collected from 4 dairy cattle at 3 weeks before the expected parturition (wk -3), parturition (wk 0) and 3 weeks after parturition (wk +3). The DNA damage of PBMC and PMN was e...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 2019
ISSN: 0022-0302
DOI: 10.3168/jds.2018-16045