Physiologic-biochemical indices of blood, colostrum and milk of volyn' beef breed and limusin cross-breed heifers

R. S. Fedoruk, Yu. V. Potapchuk, O. F. Tsap, Y. V. Lesyk, A. P. Kirichuk

Data of experimental studies concerning physiological and biochemical indices of blood and quality of colostral milk and milk of pure Volyn' beef breed heifers and cross-breed Volyn' beef Limusin heifers bred under conditions of Polissia are presented in this article The differences of studied indices between groups of animals were established, that is - increased amount of haemoglobin and total protein in blood of cross-bred animals on 8-9th months of gestation, however during lactation in blood of cross-breed animals there was a tendency to higher activity of aminotransferases comparing to pure breed. Fat content in colostral milk of pure breed heifers was on 8,7 % higher than this indicator in colostral milk of cross-bred animals. Amount of fat, protein and nonfat milk solids in milk of cross-breed heifers on the 2nd lactation month was higher in comparison to milk of Volyn' beef breed animals.

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