Effects of Supplemented with L-Arginine or N-Carbamylglutamate on Athletic Performance and Plasma Biochemical Indexes of Yili Horses
ZHANG Shiqi, LI Xiaobin, ZHANG Wenjie, HAN Ming, WANG Shichang, YANG Kailun
Xinjiang Key Laboratory of Meat & Milk Production Herbivore Nutrition, College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China
Abstract：The aim of this study was to investigate the effects of supplemented with L-arginine or N-carbamylglutamate on athletic performance and plasma biochemical indexes of Yili horses. Fifteen Yili horses with similar body weight[(388.88±23.24) kg] and aged 2 years old, were divided into 3 groups with 5 horses (3♂ +2♀) in each group, and all horses were trained according to the same training intensity every day. Horses in control group were supplemented with L-alanine, horses in trial group Ⅰ were supplemented with L-arginine, and horses in trial group Ⅱ were supplemented with N-carbamyleglutamate. The trial was lasted for 4 weeks. The 3 600 m speed race was conducted and blood samples were collected at the 28th day of trial. The results showed as follows:compared with control group, the average speed of the 36 00 m speed race on initial and day 28th of trial in trial groups Ⅰ and Ⅱ had no significant difference (P>0.05). Plasma nitric oxide content in trial groups Ⅰ and Ⅱ was increased by 27.53% (P<0.01) and 18.10% (P<0.01) compared with control group, respectively, and it in trial group Ⅰ was increased by 7.99% compared with trial group Ⅱ (P<0.01). The plasma ammonia content in trial groups Ⅰ and Ⅱ was decreased by 25.44% (P<0.01) and 14.04% (P<0.01) compared with control group, respectively, and it in trial group Ⅰ was decreased by 13.27% compared with trial group Ⅱ (P<0.01). There was no significant difference in plasma 5-hydroxy tryptamine, glucose and pyruvic acid contents among groups (P>0.05). Compared with control group, plasma lactate content in trial group Ⅰ was significantly decreased (P<0.01), but there was no significant difference in trial group Ⅱ (P>0.05). Compared with control group, plasma catalase activity in trial groups Ⅰ and Ⅱ was increased by 24.00% (P<0.01) and 21.33% (P<0.01), respectively, and plasma hydroxyl radical resistance in trial in groups Ⅰ and Ⅱ was increased by 5.48% (P<0.05) and 8.47% (P<0.05), respectively. Therefore, supplemented with L-arginine or N-carbamylglutamate can both increase plasma nitric oxide content and antioxidant capacity, and decrease plasma ammonia content, and supplemented with L-arginine can also decrease the plasma lactic acid content, but both of them have no significant effect on the average speed of 3 600 m speed race of Yili horses. L-arginine and NCG can be used as nutritional regulators to relieve exercise fatigue or promote fatigue recovery after exercise.
张仕琦, 李晓斌, 张文杰, 韩明, 王世昌, 杨开伦. 补喂L-精氨酸或N-氨甲酰谷氨酸对伊犁马运动性能和血浆生化指标的影响[J]. 动物营养学报, 2019, 31(7): 3188-3196.
ZHANG Shiqi, LI Xiaobin, ZHANG Wenjie, HAN Ming, WANG Shichang, YANG Kailun. Effects of Supplemented with L-Arginine or N-Carbamylglutamate on Athletic Performance and Plasma Biochemical Indexes of Yili Horses. Chinese Journal of Animal Nutrition, 2019, 31(7): 3188-3196.
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