饲粮能量水平对德州驴生长性能、营养物质消化率及血清生化指标的影响  

Effects of Dietary Energy Level on Growth Performance,Nutrient Digestibility and Serum Biochemical Indices of Dezhou Donkeys

作　　者：张晨 杨泉 王云鹏 李文绣 张桂国 张崇玉 ZHANG Chen;YANG Quan;WANG Yunpeng;LI Wenxiu;ZHANG Guiguo;ZHANG Chongyu(Key Laboratory of Animal Biotechnology and Disease Control&Prevention of Shandong Province,College of Animal Science and Technology,Shandong Agricultural University,Tai’an 271018,China)

机构地区：[1]山东农业大学动物科技学院,山东省动物生物工程与疾病防治重点实验室,泰安271018

出　　处：《动物营养学报》2022年第2期1158-1164,共7页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：山东省农业重大应用技术创新项目(SD2019XM001);国家重点研发计划(2019YFE0107700);山东省现代农业产业技术体系产业创新团队(SDAIT-27-02,SDAIT-23-05);驴良种高效繁育及配套饲养技术集成与示范(S190503110001-lcy);山东省驴产业科技协同创新中心开放课题(3193308);山东省良种工程(南种北繁,2017LZN036)。

摘　　要：本研究旨在探讨饲粮能量水平对德州驴生长性能、营养物质消化率及血清生化指标的影响。试验选用健康的7~8月龄德州公驴36头,体重(123.9±5.0) kg,随机分为3个组,每组3个重复,每个重复4头驴。各组饲粮消化能水平分别为10.43 (低能组)、11.03 (中能组)和11.90 MJ/kg(高能组),粗蛋白质水平相近。预试期20 d,正试期40 d。结果表明:1)中能组和高能组的平均日增重显著高于低能组(P<0.05),且高能组的平均日增重显著高于中能组(P<0.05)。中能组和高能组的料重比显著低于低能组(P<0.05),且高能组的料重比显著低于中能组(P<0.05)。2)中能组和高能组的干物质、有机物和碳水化合物消化率显著高于低能组(P<0.05),且高能组的干物质、有机物和碳水化合物消化率显著高于中能组(P<0.05)。3)高能组的血清总蛋白、甘油三酯含量显著高于中能组和低能组(P<0.05)。中能组和高能组的血清白蛋白含量显著高于低能组(P<0.05),且高能组的血清白蛋白含量显著高于中能组(P<0.05)。中能组和高能组的血清乳酸脱氢酶活性显著低于低能组(P<0.05),且高能组的血清乳酸脱氢酶活性显著低于中能组(P <0.05)。由此可见,在本试验饲粮能量水平范围内(10.43~11.90 MJ/kg),饲喂高能量水平(11.90 MJ/kg)饲粮能够较好地提高德州驴的平均日增重,同时提高干物质、有机物和碳水化合物消化率,降低料重比。The object of this study was to investigate the effects of dietary energy level on growth performance,nutrient digestibility and serum biochemical indices of Dezhou donkeys. Thirty-six healthy Dezhou male donkeys aged from 7 to 8 months with similar body weight of(123.9±5.0)kg were selected and randomly divided into 3 groups with 3 replicates in each group and 4 donkeys in each replicate. Dietary digestible energy levels of3 groups were 10. 43(low energy group),11. 03(mid energy group)and 11. 90 MJ/kg(high energy group),respectively,and the crude protein levels were similar. The adaptation period was 20 days and the experimental period was 40 days. The results showed as follows:1)the average daily gain of mid energy group and high energy group was significantly higher than that of low energy group(P<0.05),and the average daily gain of high energy group was significantly higher than that of mid energy group(P<0.05). The feed to gain ratio of mid energy group and high energy group was significantly lower than that of low energy group(P<0.05),and the feed to gain ratio of high energy group was significantly lower than that of mid energy group(P<0.05). 2)The dry matter,organic matter and carbohydrate digestibility of mid energy group and high energy group was significantly higher than that of low energy group(P<0.05),and the dry matter,organic matter and carbohydrate digestibility of high energy group was significantly higher than that of mid energy group(P<0.05). 3)The serum total protein and triglyceride contents of high energy group were significantly higher than those of mid energy group and low energy group(P<0.05). The serum albumin content of mid energy group and high energy group was significantly higher than that of low energy group(P<0.05),and the serum albumin content of high energy group was significantly higher than that of mid energy group(P<0.05). The serum lactate dehydrogenase activity of mid energy group and high energy group was significantly lower than that of low energy group(P<0.05),and the ser

关 键 词：德州驴 生长性能 营养物质消化率 血清生化指标 

分 类 号：S822[农业科学—畜牧学]