E. G. Nasambaev, A. B. Akhmetalieva, A. E. Nugmanova and A. O. Doszhanova
Zhangir Khan West Kazakhstan Agrarian Technical University, Kazakhstan
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(Received : March 25, 2021; Accepted : May 18, 2021)
Hayfields and pastures of the West Kazakhstan region are the main fodder base of animal husbandry. However, their productivity and nutritional value of feed is low and does not correspond to feeding norms. The studies were carried out in farms engaged in breeding pedigree cattle of the Kazakh whiteheaded breed (Plemzavod Chapaevsky LLP and Khafiz farm) in the West Kazakhstan region in 2018-20. The research results showed that the main fodder base for beef cattle breeding in the West Kazakhstan region was made up of natural unchanged fodder lands. The research results showed that the nutritional value of forage plants varied in the studied farms. In terms of nutritional value, the energy feed unit of mixed herb hay of Plemzavod Chapaevsky LLP and Khafiz farm was almost at the same level (0.58-0.6 feed units). However, the digestible protein of the mixed herb hay of Plemzavod Chapaevsky LLP was 33.1% lower than the protein value of the Khafiz farm. Feeding rations for cows, bulls and young animals of the Kazakh white-headed breed were developed. It was established that the hay type of feeding cows with a live weight of 450 and 550 kg contained 79.6 and 79.5 g of digestible protein per one feed unit, and
in the case of silage/hay feed those values amounted to 78.3 and 78.8 g, respectively. Calculations of indicators of economic efficiency showed that the level of profitability in the second experimental group was the highest and amounted to 44.18%.
Key words : : Beef cattle breeding, animal feeding, forage, nutritional value, economic efficiency