Authors:
O. G. LORETS, doctor of biological sciences, professor,
O. V. GORELIK, doctor of agricultural sciences, professor,
Ural State Agrarian University (42 K. Liebknechta, 620075, Ekaterinburg)
S. A. GRITSENKO, doctor of biological sciences, professor,
A. A. BELOOKOV, doctor of agricultural sciences, professor,
South Ural State Agrarian University (13 Gagarina Str., 457100, Troitsk)
Abstract. A positive medium level relationship between content of total protein in the blood and milk; between the content of calcium and phosphorus in blood and milk. There was a positive significant correlation of glucose in the blood content in milk is calcium, and, conversely, the content of milk lactose with the amount of blood calcium. A positive medium level relationship was observed between total protein content in blood and milk (0.31); between the content of calcium and phosphorus in blood and milk, the correlation coefficients are respectively equal to 0.39 and 0.34. In addition, there was a positive correlation of a medium level, between the content of carotene in blood and milk (0.33). Negative relationship between number of leukocytes and the content of total protein in milk (–0.32) and casein (–0.32). Between the blood lipids and the percentage of fat in milk, blood glucose and milk lactose found non-significant positive direction of communication. Between indicators of leukogram and biochemical analysis of milk when false. From the obtained data it is clear that there is little correlation between the main parameters of blood and milk that can be used by breeders in the conduct of breeding for improved milk quality. The heritability of blood counts in most cases is average and varies in the range from 0.02 to 0.98 (method of correlation), from 0.02 to 0.82 (method of linear regression). From the genotypic characteristics of the organism to a greater extent on total protein content in the blood (of 0.76) and the number of monocytes (0.60). The average coefficient of heritability observed in the blood levels of total lipids, phosphorus, eosinophils, young neutrophils, red blood cell count.
Keywords: milk production, milk, correlation, blood parameters, cattle.
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