Effects of Rumen Protected N-Carbamylglutamate on the Meat Quality and Anti-oxidant Function

• 1、Departments of Animal Science, Ningxia University, Ningxia Yinchuan 750021, China
• 2、Hongsipu District Tianyuan Well-bred Sheep Breeding Co., Ltd. Ningxia Wuzhong, 751900，China
• 3、Ningxia Hui Autonomous Region Husbandry Workstation, Ningxia Yinchuan 750001，China

Abstract：The objective of the present experiment was to determine the effect of rumen protected N-carbamoylglutamate (RP-NCG) on meat quality and anti-oxidant function of Tan sheeps. Sixteen male Tan lambs with average weight of (20.15 ± 0.42kg) kg were randomly assigned into two treatments (8 lambs per treatment, 2 lambs per pen). The treatments were one of two diets containing 0, or 0.10 % RP-NCG, respectively. At the end of the experiment (60 d), the lambs were harvested by blooding, and the serum was got by centrifugation in heparin-coated tubes. The carcass characteristic was measured. The tissues of liver and longissiums doris muscle were collected and saved for laboratory analysis. Compared with the control treatment, dietary supplementation of RP-NCG increased the slaughter yield and the weight ratio of meat to carcass (P < 0.05), as well as have a increased tendency for loin eye area (P > 0.05), while decreased the GR values (P < 0.05). Dietary supplemented with RP-NCG increased the activity of total superoxide dismutase in liver and serum, as well as increased the activity of glutathione peroxidase, catalase, and total antioxidant capacity in serum (P < 0.05), while decreased the content of malondialdehyde in serum (P < 0.05). In conclusion, dietary supplemented with RP-NCG could improve the slaughter performance and ameliorate fat distribution, while increased the anti-oxidant ability, which result in the improvement of meat quality of Tan sheep.

Keywords： N-carbamoylglutamate (NCG) Tan sheep meat quality anti-oxidant ability