EFFECT OF LONG-TERM INSULIN INJECTION ON GROWTH PERFORMANCE, SERUM CONSTITUENTS AND SLAUGHTER MEASURMENTS IN SHEEP

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SUMMARY Growth perforinance, some serum constituents and slaughter mea surements were studied following long-term insulin injection in sheep. Twelve Saidi lambs (12 weeks old) were divided into two groups, a control group with no insulin treatment and the other group was injected daily with 0.75 IU insulin per kg body weight during the experimental period (28 weeks). Insulin injection increased significantly (P<0.01) body weight. Lower (P<0.01) serum glucose concentration was observed in insulin treated animals than in control at wk 3 of the experimental peroid. Insulin injection decreased serum protein, globulin and triglycerides concentrati11s by abilit 6 (P<0.05), 13% (P<0.01) and 18, respectively. There were no significant differences between the two
Toups of animals in serum urea-nitrogen, cholesterol and GOT concentrations. Insulin treatment increased slaughter body weight and empty body weight by about 10% and 9%, respectively. Ainong viseral organs, insulin produces anabolic effects on spleen, liver and lungs, but not on kidney. Insulin treatinent increased the weights of kidney fat, caul and omental fats.

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