SLAUGHTER AND MEAT QUALITIES OF THE YOUNG OF EDILBAYSHEEP OFFARM OF THE ATYRAU REGION

Abstract

Sheep of Edilbay breed and type with whitt and light-grey woolraised in “Suyindykski” and “Kurmangazy” stud farms in Aturau oblast are characterized with high slaughter and meat qualities that are attributes of thebest breeds of the fat-rumped sheep for meat-fat production. It is determined that in 4-4.5 and 16 months old ram lambs live weight right before slaughter, carcass weight with rump and dressing weight were 1 /3and¾ of the one in adult rams respectively. This is evidence of fast maturing of young animals of the named breed and type. It was also determined that outcome of the carcass’s flash in young animals in the above mentioned groups increases with the age while outcome of the bones and tendons reduces. These indicators at 4-4.5 months of age were 80.0-80.5 and 19.5-20.0%, at 6.5-7 months – 80.3-80.8 and 19.2-19.7%, at 16 months of age – 81.5-81.8 and 18.2-18.5% respectively. Indicators of the meat-bone ratio increase with the age too pointing that growth of the flesh occurs more intensively with the age than growth of the bone tissue. It was determined that absolute mass of the muscle tissue increases with the age, at the same time comparative share of the muscle tissue in the carcasses of the ram lambs increases too: these indicators at 4-4.5 months of age were 10.3-11.11 kg and 56.8-57.5%, at 6.5-7 months – 10.94-11.89kg and 56.3-56.7%, at 16 months of age – 19.57-20.90 kg; 59.1-59.4%. Obtained data evidence that fat tissue grows more intensively during the period from 4-4.5 till 6.5-7months of age while muscle tissue grows more intensively during the further period. It was determined that growth of the muscle and bone tissues occurs approximately with the similar intensity during the period from 4-4.5 till 6.5-7months of age. It could be concluded thatsuch development of the mentioned tissues in the carcass composition is a characteristic of the fatrumped sheep adapted to pasture management.