›› 2016, Vol. 43 ›› Issue (6): 1458-1467.doi: 10.16431/j.cnki.1671-7236.2016.06.009

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Effects of Different Levels of Concentrate Supplement on Nutrition Digestion and Metabolism,Blood Biochemical Indexes and Body Weight Gain in 6 Months Old Yili Foals

NIE Biao-biao1, ZANG Chang-jiang1, TANG Wei2, DENG Hai-feng1,2, LI Xiao-bin1, XU Xiang-jun1, YANG Kai-lun1   

  1. 1. Xinjiang Key Laboratory of Meat & Milk Production Herbivore Nutrition, Xingjiang Agricultural University, Urumqi 830052, China;
    2. Zhaosu Horse Farm of Yili, Zhaosu 835600, China
  • Received:2016-02-15 Online:2016-06-20 Published:2016-07-11

Abstract: 6 months old Yili foals were used as the experimental animal fed with different levels concentrate supplement to study the effects of fed with different levels concentrate supplement on digestion and metabolism,blood biochemical indexes and body weight gain by total feces and urine collection method,provide evidence for 6 months old Yili foals feeding.According to similar weight,20 weaned 6 months old Yili foals (all males) whose average weight was (145.28±1.69)kg were randomly divided into 4 groups named groups Ⅰ,Ⅱ,Ⅲ and Ⅳ,each group of 5 weaned Yili foals(all males).All Yili foals were fed with alfalfa 4 kg/d,basised on this,groups Ⅰ,Ⅱ,Ⅲ and Ⅳ were fed with 0.4,0.6,0.8,1.0 kg/d concentrate supplement.20 d digestion and metabolism experiment,comprised 16 d adaptation and 4 d collection.The results showed that as the amount of concentrate supplement feeding increased,nutrition intake,amount of nutrient digestion of DM,OM,CP,Ca,DE,ME,retention rate of N,Ca increased.There were no significant effects on the content of TP,GLB,ALB,and BUN in plasma of 6 months old Yili foals(P > 0.05),but the content of TP,GLB in plasma showed an increased trend,the concentration of BUN in plasma showed a decreased trend.The ADG of 6 months old Yili foals was gradually increased as the amount of concentrate supplement feeding increased.Therefore,increasing amount of concentrate supplement feeding of 6 months old Yili foals could increase the nutrient intake,digestion rate and retention rate,also could strengthen the body's immune ability,improved nitrogen deposition and the average daily gain.

Key words: Yili foals; concentrate supplement; digestion and metabolism; blood biochemical indexes; body weight gain

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