LAUSR

Abstract Two experiments were conducted to assess the effect of lupin grain (Lupinus angustifolius; LUP) on milk characteristics of Awassi ewes, nutrient intake and digestibility and body weight of suckling lambs. Same diets were offered to the different groups of animals in both experiments. Dietary treatments contained no LUP (CON) or 200 g/kg LUP (LUP200) of dietary dry matter (DM) in substitution part of soybean meal and barley grain. Twenty-four Awassi ewes with initial body weight (BW) of 63.5 ± 2.19 kg were selected for the first experiment and randomly assigned to one of the two dietary treatments (12 ewes/diet). Nutrient intake was measured daily of the experiment. Body weight and milk yield were recorded on days 0, 14, 28 and 56 of the study. Twelve Awassi lambs (BW = 35.3 ± 0.75 kg) were used in the second experiment (6 lambs/diet) to assess the effect LUP addition on nutrient digestibility and N retention balance. In experiment 1, intake of acid detergent fiber was higher (P