Abstract
In 8 experimental ewes on normal diet the influence of pregnancy and feeding on insulin and glucose in the blood was studied. A reduction in insulin concentration was found as pregnancy advanced. Blood glucose fluctuated, but during late pregnancy the blood glucose level was significantly lower in twin–pregnant ewes than in ewes pregnant with 1 fetus. No increase in insulin concentration was demonstrated in twin–pregnant ewes after feeding, on the contrary an increase was found in ewes pregnant with 1 fetus. A limited effect of feeding on the glucose concentration was observed, especially compared to the reference range. A positive correlation was obtained between the concentration of glucose and insulin in the blood.
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