The effect of flaxseed and soybean on the diet of flushing of reproductive performance of Moghani sheep out of the breeding season

Thirty-six Moghani ewes with a history of two parities, weighing 55±5 kg were allocated in 3 groups (n=12) to investigate the impact of flaxseed and soybeans grains in the complementary randomized design on the ewes metabolites and hormones in blood, and their reproductive performance through a period of the 35 days. The experimental treatments were: 1- Flaxseed (F) (5% of total ration dry matter), 2-Soybean (S) (5% of total ration dry matter) and 3- Control (C) (without seed oil) respectively. Isonitrogenous (9% CP) and isocaloric (3.6 Mcal/kg) experimental diets were used. Body condition score of ewes at the beginning of experiment were 2.5 and reached to about 3 at the breeding time. Ewe's estrus was synchronized using CIDR 14 days before mating. 24 hours after CIDR removal, ewes were mated randomly with 5 rams of the station in the first of June. The usage of oilseeds improved fertility and lambing rate (P<0.05). Glucose, cholesterol, insulin and estrogen hormones levels of serum were higher in experimental diets containing flaxseed and soybean seeds than the control group (P<0.01).