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Advances in Animal and Veterinary Sciences

Research Article
Adv. Anim. Vet. Sci. 6(11): 499-508
Http://dx.doi.org/10.17582/journal.aavs/2018/6.11.499.508
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Mozhir Almahdawi

Animal Production Department College of Agriculture and Foresstry, Mosul University, Iraq.

Abstract | Three treatments each with fifteen of Awassi lambs (5-6 months aged and weighted 22.30 – 24.60 kg) fed on three rations for 100 days period were used. The rations was iso levels of crude protein (13.65, 13.75, 13.85%) and iso caloric (2597, 2545, 2506 Kcal /kg, while were varied in proportion of tea waste (0, 7.5, 15%) respectively. The results showed high significant differences (P≤0.01) between three treatments in rates of final weight and significant differences (P≤0.05) in average of daily weight gains. As for slaughtering processes of lambs, the results appeared high significant differences (P≤0.01) between three treatments on average of hot and cold carcass and significant differences (P≤0.05) in rates of muscle area, between three treatments. While in separates fats the results shown significant differences (P≤0.05) in averages of tail fat, total fats percentages between first treatments than for third treatment. As for blood traits, the results of the statistical analysis was indicated that there were a significant differences (P≤0.05) in rates of concentrations of total protein, triglycerides, cholesterol and highly significant (P≤0.01) in rates of albumin concentration between first treatment than third treatment in blood serum of Awassi lambs groups. The results concluded the possibility for using dried tea waste as a protein source in the components of fattening rations of local sheep and there was no negative effect on productive performance, carcass characteristics and blood traits.

Keywords | Tea waste, Productive performance, Carcass characteristics, Separate fats, Blood proteins.