FIELD: biotechnology.
SUBSTANCE: method includes sampling of venous blood in an amount of at least 6 ml from the tail vein of cows on days 30–50 after calving, further isolation of serum by centrifugation for 10 minutes at a speed of 1,000 g, assessment of copper and ceruloplasmin content using inductively coupled plasma and high-performance liquid chromatography mass spectrometry methods. When the concentration of copper in the blood serum is higher than 0.9 mcg/ml and ceruloplasmin is higher than 0.4 mcg/ml, cattle are classified as a group with high milk production potential; when the concentration of copper in the blood serum is below 0.9 mcg/ml and ceruloplasmin is lower 0.4 mcg/ml cattle are classified as a group with low milk production potential.
EFFECT: invention makes it possible to predict the milk productivity of cattle.
1 cl, 3 ex, 1 dwg, 1 tbl
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