Comparative Study on Serum Biochemical Indexes of Different One-Year-Old Young Horses

【Objective】 The purpose of this experiment is to study the related indexes of liver, kidney, glucose and lipid metabolism in the one-year-old horses of different breeds under the same nutrient level of concentrate feed in the hope of providing basic data reference for healthy breeding of young horses. 【Method】 Healthy 20 one-year-old Yili horses (217.44 ± 21.35) kg, 20 one-year-old Kazakh horses (215.86 ± 18.42) kg,16 one-year-old Yanqi horses (219.00 ± 19.37) kg, 16 one-year-old thorough bred (224.35±14.56) kg, 20 one-year-old hybrid horses (Yili horse ♀ × Orlov horse♂) (227.98±21.49) kg were selected for the experiment. According to the breed unit, they were divided into 5 groups, a total of 92. They were fed for 45 days on the same basis in feeding management and dietary nutrient levels to test 12 serum biochemical indicators on the 45th day. 【Result】 In the serum of one-year-old young horses of different breeds, there was a significant difference (P<0.01) in the total protein content and there was no significant difference (P>0.05) in the concentrations of albumin and urea nitrogen among breeds. The serum alanine transferase activity, aspartate transferase activity, uric acid concentration and creatinine concentration were significantly different (P<0.01 or P>0.05) from each other. The serum glucose concentration, total cholesterol concentration, triglyceride concentration and HDL concentration were significantly or significantly different (P<0.01 or P>0.05) among the breeds, while the differences of LDL concentration were not significant (P>0.05)among the varieties. 【Conclusion】 Under the same feeding and management conditions, there were some differences in serum routine index, liver, kidney, glucose and lipid metabolism index in five different breeds of one-year-old young horses.