动物营养学报 >

2017 , Vol. 29 >Issue 2: 456 - 464

DOI: https://doi.org/10.3969/j.issn.1006-267x.2017.02.013

饲料营养 Feed science and technology

爱拔益加肉仔鸡对胍基乙酸的耐受性评价

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  • 1. 中国农业大学动物营养学国家重点实验室, 农业部饲料安全与生物学效价重点实验室, 北京 100193;
    2. 北京君德同创农牧科技股份有限公司, 北京 100085
张德福(1976-),男,山东菏泽人,博士,研究方向为动物营养与饲料科学。E-mail:zhangdefu@gendone.com

收稿日期: 2016-07-18

  网络出版日期: 2017-02-17

基金资助

北京市科技计划项目资助（Z151100001215001）

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Evaluation on Tolerance of Arbor Acres Broilers to Guanidinoacetic Acid

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  • 1. Ministry of Agriculture Feed Efficacy and Safety Evaluation Center, State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing 100193, China;
    2. Beijing Gendone Agricultural Technology Co., Ltd., Beijing 100085, China

Received date: 2016-07-18

  Online published: 2017-02-17

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摘要

本试验旨在研究饲粮添加胍基乙酸（GAA）对爱拔益加（AA）肉仔鸡生长性能、血液学指标、脏器指数、组织同型半胱氨酸含量以及组织形态的影响，以系统评价AA肉仔鸡对GAA的耐受性。试验选用540只1日龄AA肉仔鸡公雏，随机分为5个组，每组6个重复，每个重复18只鸡。5组试鸡分别饲喂在基础饲粮中添加0、800、1 600、4 000和8 000 mg/kg GAA的饲粮。试验期42 d，分为前期（1~21日龄）和后期（22~42日龄）2个阶段。结果表明：与对照组相比，饲粮添加800~4 000 mg/kg GAA显著提高了肉仔鸡前期、后期和全期平均日增重（P<0.05），显著降低其后期和全期料重比（P<0.05），但对各期平均日采食量均无显著影响（P>0.05）。饲粮添加8 000 mg/kg GAA组的平均日增重、平均日采食量和料重比与对照组相比差异不显著（P>0.05）。饲粮添加800~8 000 mg/kg GAA对21、42日龄肉仔鸡血常规指标、血清生化指标、脏器指数和组织同型半胱氨酸含量均无显著影响（P>0.05）。饲粮添加4 000、8 000 mg/kg GAA对肉仔鸡肝脏和肾脏组织形态无不良影响。由此可见，肉仔鸡饲粮中添加GAA对其生长性能、血液学指标、脏器指数、组织同型半胱氨酸含量和组织形态无不良影响，肉仔鸡可耐受8 000 mg/kg GAA。

关键词： 胍基乙酸; 肉仔鸡; 耐受性; 生长性能; 血液学指标; 脏器指数; 同型半胱氨酸

本文引用格式

张德福, 李军涛, 田耀耀, 杨立彬, 张丽英 . 爱拔益加肉仔鸡对胍基乙酸的耐受性评价[J]. 动物营养学报, 2017 , 29(2) : 456 -464 . DOI: 10.3969/j.issn.1006-267x.2017.02.013

Abstract

This experiment was conducted to study the effects of guanidinoacetic acid (GAA) supplementation on growth performance, haematological indice, organ indices, tissue homocysteine contents and histomorphology, and to systematically evaluate the tolerance of Arbor Acres (AA) broilers to GAA. A total of 540 one-day-old AA male broilers were randomly divided into five groups with six replicates and eighteen broilers per replicate. Broilers were fed the same basal diet supplemented with 0 (control), 800, 1 600, 4 000 and 8 000 mg/kg GAA for 42 days, respectively. The experimental period consisted of earlier stage (aged from 1 to 21 days) and later stage (aged from 22 to 42 days). The results showed that compared with control group, GAA supplementation at 800~4 000 mg/kg significantly increased average daily gain of broilers during earlier, later and overall periods (P<0.05), and significantly decreased the ratio of feed to gain during later and overall periods (P<0.05). However, average daily feed intake had no significant difference among groups during either period (P>0.05). GAA supplementation at 8 000 mg/kg did not significantly affect average daily gain, average daily feed intake, and the ratio of feed to gain (P>0.05). Dietary GAA supplementation had no significant effects on blood routine indices and serum biochemical parameters, organ indices, and tissue homocysteine content of broilers aged of 21 and 42 days (P>0.05). GAA supplementation at 4 000 and 8 000 mg/kg had no adverse effects on liver and kidney morphology of broilers. In conclusion, dietary GAA supplementation has no adverse effects on growth performance, haematological indices, organ indices, tissue homocysteine content and histomorphology of broilers. Broilers have a good tolerance to GAA at the level of 8 000 mg/kg.

Key words： guanidinoacetic acid; broilers; tolerance; growth performance; haematological indices; organ indices; homocysteine

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