动物营养学报 >

2022 , Vol. 34 >Issue 2: 1158 - 1164

DOI: https://doi.org/10.3969/j.issn.1006-267x.2022.02.047

研究论文 RESEARCH PAPER

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

  • 张晨 ,
  • 杨泉 ,
  • 王云鹏 ,
  • 李文绣 ,
  • 张桂国 ,
  • 张崇玉
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  • 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
张晨(1993-),男,山东临沂人,硕士研究生,从事动物营养与饲料科学研究。E-mail:zchenn@163.com

收稿日期: 2021-07-12

  网络出版日期: 2022-02-15

基金资助

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）

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

  • ZHANG Chen ,
  • YANG Quan ,
  • WANG Yunpeng ,
  • LI Wenxiu ,
  • ZHANG Guiguo ,
  • ZHANG Chongyu
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  • 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

Received date: 2021-07-12

  Online published: 2022-02-15

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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。

关键词： 德州驴; 生长性能; 营养物质消化率; 血清生化指标

本文引用格式

张晨 , 杨泉 , 王云鹏 , 李文绣 , 张桂国 , 张崇玉 . 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[J]. 动物营养学报, 2022 , 34(2) : 1158 -1164 . DOI: 10.3969/j.issn.1006-267x.2022.02.047

Abstract

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 of 3 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 serum lactate dehydrogenase activity of high energy group was significantly lower than that of mid energy group (P<0.05). In conclusion, in the range of dietary energy level in this experiment (10.43 to 11.90 MJ/kg), feeding high energy level diet can better improve the average daily gain of Dezhou donkeys, improve the dry matter, organic matter and carbohydrate digestibility, and decrease the feed to gain ratio.

Key words： Dezhou donkeys; growth performance; nutrient digestibility; serum biochemical indices

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