أثر استخدام نواتج تقليم أشجار الزيتون في بعض المعايير الإنتاجية عند حملان العواس

الملخص EN

Twenty-four Awassi male lambs, aged 3- 3.5 months with initial live weight 28 ± 1.74 kg were used to compare four treatments; T1: 1kg of concentrate (38% barley + 20% corn grain + 25% CSM + 15% Wheat bran + 2% minerals and Vitamins) + 500g hay, T2: 1Kg concentrate + 500g dry olive trees pruning residues, T3:1Kg concentrate + 500 g dry olive trees pruning residues with 10% molasses, T4: 1Kg concentrate + 500 g dry olive trees pruning residues with 10% molasses and 1 % Urea.

The rations were formulated to meet ME and crude protein requirements according to NRC 1985.

Lambs were randomly distributed in special metabolism cages.

Results showed that the dry matter digestibility was 53.5%, 44.8%, 49%, 50.1%, the protein digestibility was 56%, 41.8%, 46.2%, 50.6% and the crud fiber digestibility was 24%, 21.2%, 17.9%, 27.2% for treatments 1,2,3 and 4, respectively.

The average daily gain (ADG) was 210, 186, 187, 203 g ,the values of FCR were 6.06, 6.65, 6.71 and 5.87 Kg DM of feed /Kg weight gain for the treatments 1,2,3 and 4, respectively.

The cost of 1 kg live weight amounted to 64.1 Syrian pounds (SP) for the treatment 4 against 80.3 SP for the control group.