INFLUENCE OF DIFFERENT GROWING TECHNOLOGIES ON THE FORMATION OF MEAT PRODUCTIVITY OF BULLS OF DAIRY BREEDS

Abstract

The problem of increasing meat production, in particular beef, improving its quality and reducing its cost is one of the most pressing issues in the Ukrainian agro-industrial complex and is of great economic importance. The solution to this issue largely depends on the development and practical application of effective technologies for growing and fattening young stock, and the fuller use of the maximum genetic potential of meat productivity with minimal feed, inputs and labour costs per unit of production. In order to achieve earlier slaughter conditions of dairy cattle, it is necessary to make greater use of such a reserve for increasing meat productivity as the search for various technological methods of intensive rearing of young animals. The bulls raised using the beef production technology used in beef cattle breeding under lactating cows were significantly ahead of their analogues raised by handfeeding in terms of live weight: at 3 months of age – by 18.9 kg, or 20.7%, by the end of the milk period at 6 months of age – by 40.3 kg, or 24.4%, at 9 months – by 51.3 kg, or 21.1%, by 12 months of age – by 58.6 kg, or 18.2%, and at 15 months of age – the advantage was already 60.2 kg, or 14.9%. Over the entire period of rearing, the average daily live weight gain of bulls in the control group was 97 g or 11.7% lower than in the experimental group. In order to confirm the feasibility of the proposed technology for growing bulls of the Ukrainian Black-and-White dairy breed, it is important to study the issues of the amount of feed consumed and their payment by live weight gain. Thus, the rearing of young Ukrainian Black-and-White dairy bulls with elements of beef cattle breeding technology, starting from the dairy period, provides them with an advantage over the analogues of the control group, which is achieved by higher live weight, better body structure formation and reduced feed consumption per unit of live weight gain.