Insulin-like growth factor-I, GH, insulin and glucagon concentrations in bovine colostrum and in plasma of dairy cows and neonatal calves around parturition |
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| Authors: | S Oda H Satoh T Sugawara N Matsunaga T Kuhara K Katoh Y Shoji A Nihei M Ohta Y Sasaki |
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| Institution: | Laboratory of Animal Physiology, Faculty of Agriculture, Tohoku University, Sendai, Japan. |
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| Abstract: | 1. The IGF-I concentrations in colostrum on days 1 and 2 after parturition were higher than those in cow and neonate plasma. 2. The modest increase in GH concentrations in cow plasma around parturition would not be enough to stimulate IGF-I release by tissues. 3. The concentrations of insulin, GH and glucagon in colostrum were substantially lower than those in plasma. |
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