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Blood profile test of sustained release formula of implantable bovine somatotropin in steers  

Kim, Nam Joong (Department of Companion Animal, Hyechon College)
Publication Information
Korean Journal of Veterinary Research / v.49, no.1, 2009 , pp. 9-15 More about this Journal
Abstract
The present study was carried out to examine the sustained release effect of the implantable bovine somatotropin (SRI-BST) formula. In the blood profile test in steers, the bovine somatotropin concentration in serum by radioimmunoassay showed the peak concentration on the first day after the implantation of the SRI-BST formula, and concentration proceeded for 5 days (p < 0.05). The insulin-like growth factor-1 concentration showed the peak concentration on the seventh day after implantation of the SRIF-BST formula, and concentration proceeded for 10 days (p < 0.05). The glucose showed the peak concentration on the first day after implantation of the SRI-BST formula, and concentration continued for 3 days (p < 0.05). The blood urea nitrogen showed the lowest concentration on the third day after implantation of the SRI-BST formula, and concentration continued for 7 days (p < 0.05). These results proved that the SRIF-BST formula was the sustained release effects in steers.
Keywords
bovine somatotropin (BST); IGF-1; implantable; sustained release;
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