DAIRY PRODUCTIVITY OF RED-SPOTTED SIMMENTAL COWS AND THEIR CROSSBREEDS
Keywords:
lactation period, milk fat, milk protein, lactation curve, crossover.Abstract
This scientific article reflects the results of milk productivity indicators for the first 305-day milking season of crosses of red-spotted Simmental cows bred to provide the population of the eastern region with pure natural milk in the conditions of the Ukrainka farm, which currently belongs to the Ulan district of the East Kazakhstan region, and their hybrids, in which breeding work through foreign and domestic breeding. The amount of milk produced in the first milking season from Simmental cows under economic conditions taken under control during the verification work, and the percentage of fat and protein in this milking milk are comparable to the results of milk productivity indicators shown by them in the first milking season as in steam cows bred by foreign and domestic breeding. The scientific article fully examines all the data provided by the results of the research work, according to the results of which, in each month of the milking season, the fat and protein content of cows from all three studied groups are compared. According to the results, the curve of the first milking season of Simmental cows in economic conditions and their hybrids bred by foreign and domestic breeding is shown.
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