Age-Specific Meat Productivity of Young Edilbay Sheep

Abstract

Among breeds of sheep meat-greasy directions productivity one of the prospective is edilbaevskoy breed. Due to the high maturing-STI, meat productivity and adaptability to arid conditions edilbaevskoy sheep are the most competitive. Young sheep are characterized by high slaughter qualities, especially lambs, slaughtered at an early age. This makes it possible to use them to produce high-quality lamb (lamb). The article analyzes the regularities of growth and development of young edilbaevskoy breed, it is established that the chemical composition of mutton affect the breed, age, sex, fatness, conditions of co-holding. With the age of animals at slaughter yield increases. Thus, the increase in slaughter yield in the period from 2 to 4 months of age was 2.9%, from 4 to 7 months of age-was 4.5%, from 7 to 10 months of age – was 6.7%, from 10 to one year of age-the increase was 1.6%. And for the entire period of cultivation from birth to one year of age - the increase in slaughter yield was 10.7%.A positive correlation was established between the pre-slaughter live weight of animals with total protein in blood serum at 4-month age it was 0.54, and at 7-month - 0.51. Studies have found that the strongest correlation with a high level of reliability (P>0.99) is between total protein, albumins and pre-slaughter live weight at 4 months of age. A globulin fraction of proteins has no significant correlation with the live weight of rams in different periods of growth (P>0.99). Consequently, with increasing concentration of total protein in serum increases pre-slaughter live weight. Thus, in order to obtain mutton, complete in biochemical and morphological composition and in high demand on the market, it is recommended to slaughter sheep of the edilbaevsky breed at the age of 4 months when they reach a live weight of at least 40 kg and a carcass weight of at least 16 kg.