MEAT PRODUCTIVITY OF FATTENING BULLS AND QUALITATIVE INDICATORS BEEF FOR DIFFERENT STRUCTURES RATIONS
Abstract
The materials publication retained long-term results of research conducted on fattening bulls Ukrainian black and white dairy cattle, from birth to 15- months of age. The task of the research was to study the features of the intensity of growth and metabolism of calves, depending on the availability of dietary energy in the same type of year-round feeding. The material for the research served as feed intake, contents rumen samples which were collected by means of mouth-pharyngeal probe after 2– 2,5 hours after the morning feeding, and after slaughter were: muscle, fat, connective tissue and bone harvesting and use for intensive fattening bulls zernosinazhu nutritional value of over 0,6 feed. units. contains enough protein solubility of different factions, carbohydrates, vitamins and minerals, provides high average daily live weight and positively affects the quality indicators of beef. Production zernosinazhnyh feed allows feed area of 1 hectare respectively produce 78,1 – 99,8 kg feed. units. and 6,1–13,9 kg of digestible protein.
Comprehensive assessment of the results gives reason to believe that the replacement of concentrate feed in diets (20 and 35% nutritionally) to feed zernosinazhnoho type slightly lowers average daily body weight, but does not adversely affect metabolism and quality beef and cheaper its production.
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