Objective: To determine the effects of adding of different supplemental fats to flushing diet on reproductive parameters in Iranian Zandi fat-tailed ewes.
Design: Randomized complete block.
Animals: Fifty two Six -year-old Zandi ewes.
Procedure: Four experimental diets: without supplemental fat(1), containing 4.5% calcium salts of fatty acids from tallow(2), containing 4.5% calcium salts of fatty acids from soybean oil(3) and containing 2.25% calcium salts of fatty acids from tallow plus 2.25% calcium salts of fatty acids from soybean oil(4) were tested. After laparoscopy, follicles (3 mm diameter) and corpus luteums (CL) on both ovaries were counted. Number of CLs were designated as ovulation rate (OR) index. At lambing number, weight and sex of lambs and lambing date of ewes were recorded.
Statistical analysis: Analysis of variance was done by general linear model procedure of the SAS.
Results: OR in group 3 was higher than the other ones (p
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