نتایج جستجو برای: oral recombinant bovine somatotropin

تعداد نتایج: 431340  

Journal: :The Journal of endocrinology 1998
J A Sterle C Boyd J T Peacock A T Koenigsfeld W R Lamberson D E Gerrard M C Lucy

Fetal growth is increased when pregnant gilts are treated with recombinant porcine somatotropin. The mechanism for increased fetal growth was examined by measuring the expression of IGF-I and -II and IGF-binding protein-2 (IGFBP-2) mRNA in liver and reproductive tissues of somatotropin- and saline-treated pregnant gilts. Twenty-four pregnant gilts received daily injections of either saline (con...

2004
William D. McBride Sara Short Hisham El-Osta

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...

Journal: :Journal of animal science 1993
F J Schwarz D Schams R Röpke M Kirchgessner J Kögel P Matzke

The objectives of this study were to investigate the effects of exogenous somatotropin on growth performance and carcass traits and on concentrations of somatotropin (ST), IGF-I, insulin, glucagon, free fatty acids (FFA), and glucose in plasma of finishing Simmental beef heifers. Three treatment groups, which included 12 heifers each, received a subcutaneous injection of a slowly released recom...

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