Аңдатпа
The article provides the results of studies conducted to study the main economically useful signs in lamb of three intra-stage constitutional-productive types: meat, normal and wool. The experiment involved sheep of the Kazakh kurduchny semi-coarse breed of sheep of the «Akbastau» peasant farm in the Zhanasemey district of the Abai region.At 12 months of age, meat-type rams outperformed wool-type rams by 8.7% (p<0.001) and normal type by 4.4% (p<0.005), and at 15 months of age by 11.6% (p<0.001) and 6,7%, respectively (p<0.001). However, at the age of 12 and 15 months, normal type sheep on this basis had a significant value (p<0.05 and p<0.05) higher body weight compared to similar woolly type animals.Lambmeat types are larger, have better backbone development than their peers of normal and woolly types. They have the best development of such measurements as heel girth, height at the withers and sacrum, depth and chest girth.Wool-type rams have a more stretched body than meat-type animals. Rams of the normal type in high-altitude measurements practically do not differ from animals of the woolen type, surpassing the latter in width, depth and chest girth.Sheep of woolly and normal types outstrip meat-type sheep wool, the former by 15.7% (p<0.001) and the latter by 14.2% (p<0.001).The results of the control slaughter of lamb of different types showed that there were no significant differences (p>0.1) between the animals of the compared constitutionally productive types in terms of carcass mass and slaughter mass. Slaughter weight in sheep of meat and normal types is higher than in woolen-type animals by 9.1% and 4.9%, respectively. Lamb of the normal type has better internal fat formation than peers of the meat and wool types