补饲精料补充料对育肥驴体重增加、血液生化指标影响

Effects of concentrate supplementation on body weight increase and blood biochemical indices of fattening donkeys

【目的】研究补饲精料补充料对育肥驴体重增加和血液生化指标的影响,为新疆本地驴育肥增效提供参考依据。【方法】选择40头年龄3~5岁、体重相近(186.65±10.39)kg、健康状况良好的母驴,随机分为对照组和试验组,每组20头。对照组按照金胡杨牧业有限公司对育肥驴常规饲养管理的方法饲喂,试验组在相同的饲养管理条件下补饲研究提供的精料补充料2 kg/(d·头),进行为期90 d的育肥试验,定期称量育肥驴体重,试验结束时采集血液并测量相关指标。【结果】(1)补喂精料补充料的试验组母驴总增重和日增重显著高于对照组(P<0.05),分别提高了94.89%和100.00%。(2)补饲能够显著提高母驴血浆总蛋白和白蛋白的含量,分别提高了49.79%和34.31%(P<0.05)。(3)补饲可显著提高母驴血浆甘油三酯、高密度脂蛋白胆固醇和低密度脂蛋白胆固醇,分别提高了4.6%、7.92%和7.25%(P<0.05)。(4)试验组血浆酶水平均高于对照组,试验组和对照组并无显著差异(P>0.05)。【结论】给育肥驴补喂精料补充料,可显著促进体重的增加,提高蛋白质代谢,促进育肥驴整体的育肥效果。

【Objective】This experiment aims to investigate the effects of concentrate supplementation on body weight gain,blood biochemical indices and reproductive hormones of fattening donkeys,so as to provide reference for improving fattening efficiency of local donkeys in Xinjiang.【Methods】Forty healthy female donkeys aged 3-5 years with similar body weight(186.65±10.39)kg were randomly divided into control group and experimental group with 20 donkeys in each group.The control group was fed according to the conventional feeding and management method of fattening donkeys by Jinhuyang Animal Husbandry Co.,Ltd.,and the experimental group was fed the concentrate supplement 2 kg/d provided in this study under the same feeding and management conditions.The fattening experiment lasted for 90 d,and the weight of fattening donkeys was weighed regularly.【Results】The results showed as follows:(1)The total weight gain and daily gain of female donkeys in concentrate and supplement groups were significantly higher than those in control group(P<0.05),which were increased by 94.89% and 100.00%,respectively.(2)The contents of total protein and albumin in plasma of female donkeys were significantly increased by 49.79% and 34.31%,respectively(P<0.05).(3)Supplementation significantly increased plasma triglyceride,high density lipoprotein cholesterol and low density lipoprotein cholesterol were increased by 4.6%,7.92% and 7.25%,respectively(P<0.05).(4)There was no significant difference in enzyme content between experimental group and control group(P>0.05),but the plasma enzyme level of experimental group was higher than that of control group.【Conclusion】Feeding concentrate supplement to fattening donkey can significantly promote the increase of body weight,improve protein metabolism and promote the overall fattening effect of fattening donkey.