Milk production and hormonal changes in Murrah Buffaloes administered recombinant Bovine Somatotropin (rBST)
نویسندگان
چکیده
منابع مشابه
The environmental impact of recombinant bovine somatotropin (rbST) use in dairy production.
The environmental impact of using recombinant bovine somatotropin (rbST) in dairy production was examined on an individual cow, industry-scale adoption, and overall production system basis. An average 2006 U.S. milk yield of 28.9 kg per day was used, with a daily response to rbST supplementation of 4.5 kg per cow. Rations were formulated and both resource inputs (feedstuffs, fertilizers, and fu...
متن کاملMultiple Protein Biomarker Assessment for Recombinant Bovine Somatotropin (rbST) Abuse in Cattle
Biomarker profiling, as a rapid screening approach for detection of hormone abuse, requires well selected candidate biomarkers and a thorough in vivo biomarker evaluation as previously done for detection of growth hormone doping in athletes. The bovine equivalent of growth hormone, called recombinant bovine somatotropin (rbST) is (il)legally administered to enhance milk production in dairy cows...
متن کاملEffect of recombinant bovine somatotropin on milk production and composition of cows with Streptococcus uberis mastitis.
The protective effect of bovine somatotropin (bST) during experimental Streptococcus uberis mastitis in cows was studied. The left quarters of 10 cows were infected with 500 cfu of S. uberis O140J. Five cows were subcutaneously treated with 500 mg of recombinant bST 7 d before and after infection, and 5 control cows received the excipient. In the treated cows, total milk production significantl...
متن کاملEffect of microclimate alteration on milk production and composition in Murrah buffaloes.
AIM The aim of this study was to assess the effect of microclimate alteration on temperature-humidity index (THI), milk yield, and milk composition of Murrah buffaloes during summer for a period of 90-day from March to May-2014 at Buffalo Research Station, Venkataramannagudem, Andhra Pradesh, India. MATERIALS AND METHODS A total of 40 lactating Murrah buffaloes were selected having similar bo...
متن کاملEffect of milking behavior on circulatory hormones and milk production in lactating Murrah buffaloes
The effect of milking temperament on plasma hormones, metabolites, milk yield and composition in lactating Murrah buffaloes was studied. Animals were selected from the institute herd and grouped as docile and nervous buffaloes, based on temperament score before and during milking. Blood sampling times were; before milking (-20 min.), after concentrate intake, after teat massage, during milking ...
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ژورنال
عنوان ژورنال: Agriculture and Biology Journal of North America
سال: 2010
ISSN: 2151-7525
DOI: 10.5251/abjna.2010.1.6.1325.1327