反刍与草食动物营养与饲料 RUMINANT AND HERBIVORE NUTRITION AND FEED

全混合颗粒料中添加不同类型蛋氨酸对湖羊生长性能及血清生化指标的影响

  • 李书杰 ,
  • 谢颖 ,
  • 朱靖 ,
  • 韩兆玉
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  • 南京农业大学动物科技学院, 乳牛科学研究所, 南京 210095
李书杰(1995-),男,浙江杭州人,硕士研究生,研究方向为动物遗传育种与繁殖。E-mail:lishujie@njau.edu.cn

收稿日期: 2020-06-13

  网络出版日期: 2021-01-18

基金资助

安迪苏生命科学制品(上海)有限公司合作项目

Effects of Adding Different Types of Methionine in Fully Mixed Granules on Growth Performance and Serum Biochemical Indexes of Hu Sheep

  • LI Shujie ,
  • XIE Ying ,
  • ZHU Jing ,
  • HAN Zhaoyu
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  • Institute of Dairy Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China

Received date: 2020-06-13

  Online published: 2021-01-18

摘要

本试验旨在研究在湖羊全混合颗粒料中添加不同类型蛋氨酸(蛋氨酸钙盐与蛋氨酸羟基类似物异丙酯)对湖羊生长性能及血清生化指标、抗氧化指标和激素含量的影响。选取体重为(19.99±2.04)kg的健康湖羊72只,随机分为3组:对照组、试验Ⅰ组(在基础饲粮中添加1.5 kg/t蛋氨酸钙盐)和试验Ⅱ组(在基础饲粮中添加1.5 kg/t蛋氨酸羟基类似物异丙酯),每组6个重复,每个重复4只(公母各占1/2)。预试期7 d,正试期80 d。结果表明:1)与对照组相比,试验Ⅰ组、试验Ⅱ组总增重、平均日增重均有上升的趋势,其中试验Ⅰ组总增重提高了12.8%(P>0.05),试验Ⅱ组总增重提高了3.1%(P>0.05);料重比方面,试验I组、试验Ⅱ组均有下降的趋势,其中试验Ⅰ组下降了12.2%(P>0.05),试验Ⅱ组下降了3.6%(P>0.05)。2)试验Ⅱ组血清甘油三酯(TG)、总胆固醇(TCH)、低密度脂蛋白胆固醇(LDL-C)、总蛋白(TP)含量显著高于对照组和试验Ⅰ组(P<0.05)。3)血清抗氧化指标及激素含量各组之间无显著差异(P>0.05)。综上所述,全混合颗粒料中添加蛋氨酸羟基类似物异丙酯及蛋氨酸钙盐具有提高肉羊生长速度、降低料重比的趋势,同时影响部分血清生化指标,但对血清抗氧化指标及激素含量无显著影响。

本文引用格式

李书杰 , 谢颖 , 朱靖 , 韩兆玉 . 全混合颗粒料中添加不同类型蛋氨酸对湖羊生长性能及血清生化指标的影响[J]. 动物营养学报, 2021 , 33(1) : 370 -378 . DOI: 10.3969/j.issn.1006-267x.2021.01.037

Abstract

This experiment was conducted to investigate the effects of adding different types of methionine in fully mixed granules on growth performance, serum biochemical indexes and hormone contents of Hu sheep. Seventy-two healthy Hu sheep weighing (19.99±2.04) kg were selected. They were randomly divided into 3 groups: control group (a basal diet), experimental Ⅰ group (adding 1.5 kg/t calcium methionine salt) and experimental group Ⅱ [adding 1.5 kg/t 2-hydroxy-4-(methylthio) butanoic acid isopropyl ester, HMBi in the basal diet], each group had 6 repetitions, with 4 sheep in each repetition. The pre-feeding period was 7 days, and the formal period was 80 days. The results showed as follows: 1) the total weight gain and daily weight gain of experimental group Ⅰ and experimental group Ⅱ had an upward trend. The total weight gain of experimental group Ⅰ increased by 12.8% (P>0.05), and the total weight gain of experimental group Ⅱ increased by 3.1% (P>0.05). In terms of feed/gain, both the experimental Ⅰ group and the experimental Ⅱ group had a downward trend. Among them, the experimental I group had dropped by 12.2%, and the experimental Ⅱ group had dropped by 3.6% (P>0.05). 2) The contents of serum triglyceride, total cholesterol, low-density lipoprotein cholesterol in experimental group Ⅱ were significantly higher than those in the control group and the experimental group Ⅰ (P<0.05), and there were no significant differences in the antioxidant indexes and hormone contents (P>0.05). In summary, the addition of HMBi and methionine calcium salt in the diet can increase the growth rate of sheep, reduce the feed/gain, and at the same time affect some of the serum biochemical indexes, and have no significant effect on serum antioxidant indexes and hormone contents.

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