Abstract
Twelve local ewes with lambs ( 6 Awassi and 6 Hamdani ) in early stage of lactation , 3 – 4 years of age with average body weight 54.04 kg were used in this study. The ewes were divided into three groups each of four. The ewes in each group fed on three rations consist mainly from barley, wheat bran, soybean and wheat straw , The first group was the control ( T1 ) , the second group ( T2 ) was fed on the same ration with supplement 0.5 g/ewe of vitamin E and selenium blend. While the third group ( T3 ) was fed on the same ration after including heat treated soybean meal and supplemented with 0.5 g/ewe of vitamin E and selenium blend. The ewes in each group was fed periodically on experimental ration in latin square design ( 3 × 3 ) every period lasted 17 days . Results showed that the treatment had no significant effect on milk yield which were between 708 – 843 g/day and corrected milk ( 4% fat ) 715 – 982g/day, in spite of milk yield was improved by 19% and fat corrected milk 37% in T3 as compared T1 and T2. Also the differences was not significant in milk fat 4.02 – 4.91%, protein 5.42 – 5.90%, lactose 4.55 – 4.69% and milk urea 25.07 – 26.79 mg/dl. Quantity of energy excreted in milk increased mathematically in T3 775 kcal/day as compared T1 and T2 584 And 596 kcal/day respectively. Blood parameters had no significant differences among treatments.
