Effect of Socioeconomic Factors on Bovine Somatotropin Adoption Choices
نویسندگان
چکیده
منابع مشابه
The Adoption and Impact of Bovine Somatotropin on U.S. Dairy Farms
Data from a national survey representative of U.S. dairy operations were used to assess adoption and the production and financial impacts of recombinant bovine somatotropin (rbST). Adoption rates of rbST varied significantly across the nation, but were higher among larger diary operations in all regions. However, the scale bias of rbST adoption was substantially diminished when the influence of...
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15 صفحه اولEffect of bovine somatotropin administered to periparturient dairy cows on the incidence of metabolic disease.
Thirty-eight dry, pregnant Jersey cows were assigned to diet and bST treatment in a 2 x 2 factorial design. During the dry period, half of the cows were fed a normal TMR (0.4% Ca; 0.3 to 0.4% P), and half of the cows were fed a high Ca TMR (1.5 to 1.6% Ca; 0.4 to 0.7% P). The high Ca diets were designed to induce milk fever and were relatively cationic (194 to 293 meq/kg) compared with the norm...
متن کاملEffect 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...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1994
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(94)76958-7