Reduction of lactational performance following bovine TNF-α administration to dairy cows
نویسندگان
چکیده
منابع مشابه
Effect of Bovine Somatotropin on the Lactational and Reproductive Performance of Lactating Dairy Cows - a Review
Bovine somatotropin (bST) increases milk production in dairy animals. The maximum increase in milk production has been observed up to 41%. Somatotropin did not change milk composition significantly. During short-term application of bST, cows mobilized their body-reserves to support the increased milk production. Although DM intake of cows was increased in the long-term applications, however, gr...
متن کاملPerForMance in Dairy cows
• Blood growth hormone (GH) concentrations increase shortly after calving. • Greater blood GH coordinates nutrient partitioning; the process through which nutrients are preferentially targeted for milk production. Blood insulin and insulin-like growth factor (IGF)-I remain low when blood GH concentrations increase. • Blood GH concentrations are elevated in cows in negative energy balance. Blood...
متن کاملEffect of Administration of an Opioid Antagonist (Naloxane) to Treat Ovarian Cysts in Dairy Cows
The role of stress in the pathogenesis of ovarian cysts is believed to be mediated by the discharge of endogenous cortisol, which inhibits LH release. Endogenous opioid peptides are involved in many responses to stress. Therefore, the aim of this study was to determine the effect of epidural administration of Naloxone (NX) on cystic regression and follicle development leading to normal oestrus ...
متن کاملBovine herpes mammillitis in three dairy cows
Skin pathologies of the teat and udder are rare but a difficult to diagnose challenge for large animal practitioners. Due to their localisation, the milkability can be compromised partly or completely so that the economic value of the animals is seriously at risk. Skin pathologies of the udder can be of infectious or non-infectious nature. Most prevalent non-infectious skin lesions are primaril...
متن کاملAmino Acid Supply and Metabolism in Relation to Lactational Performance of Dairy Cows Fed Grass Silage Based Diets
The main objective of the thesis was to study AA supply of dairy cows fed grass silage based diets with specific emphasis on the impact of changing individual and total AA supplies arising from individual AA supplementations or changes in the diet on milk production and AA utilisation. Mammary AA metabolism was also studied to broaden the understanding of the mechanisms underlying altered lacta...
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ژورنال
عنوان ژورنال: Journal of Animal and Feed Sciences
سال: 2004
ISSN: 1230-1388
DOI: 10.22358/jafs/74049/2004