动物营养学报 >

2019 , Vol. 31 >Issue 7: 3086 - 3094

DOI: https://doi.org/10.3969/j.issn.1006-267x.2019.07.019

猪与禽营养 Swine and poultry nutrition

饲粮直链/支链淀粉和淀粉酶对肉鸡生长性能的影响及其互作效应研究

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  • 1. 湖南农业大学动物科学技术学院, 长沙 410128;
    2. 山东隆科特酶制剂有限公司, 临沂 276400
马杰(1993-),男,陕西汉中人,硕士研究生,研究方向为动物营养与饲料科学。E-mail:1030272902@qq.com

收稿日期: 2019-01-11

  网络出版日期: 2019-07-19

基金资助

湖南农业大学技术合作项目——酶制剂应用技术研发中心建设的研究（0115055）

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Effects of Dietary Amylose/Amylopectin and Amylase on Growth Performance of Broilers and Their Interaction Effect

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  • 1. College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China;
    2. Shandong Longkete Enzyme Preparation Co., Ltd., Linyi 276400, China

Received date: 2019-01-11

  Online published: 2019-07-19

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摘要

本试验旨在研究饲粮直链/支链淀粉和淀粉酶对肉鸡生长性能和营养物质表观消化率的影响。试验采用4×3双因子设计，选用1日龄爱拔益加（AA）肉仔鸡960只，随机分为12个组，每组5个重复，每个重复16羽肉鸡，饲粮直链/支链淀粉分别为0.11、0.23、0.35、0.47，淀粉酶的添加量分别为0、3 000、6 000 U/kg。试验期为21 d。试验测定了肉鸡生长性能和营养物质表观消化率。结果表明：1）直链/支链淀粉为0.23的饲粮组肉鸡的平均日增重显著提高（P<0.05），料重比以直链/支链淀粉为0.47的饲粮组最高（P<0.05），其他组间差异不显著（P>0.05）；饲粮中添加6 000 U/kg淀粉酶显著降低肉鸡平均日增重（P<0.05），但对料重比影响不显著（P>0.05）；二者的互作效应不显著（P>0.05）。2）能量、粗蛋白质、干物质、粗脂肪以及钙表观消化率以直链/支链淀粉为0.11的饲粮组最高（P<0.05），直链/支链淀粉为0.47的饲粮组最低（P<0.05）；饲粮中添加淀粉酶对营养物质表观消化率影响不显著（P>0.05）；二者的互作效应对营养物质表观消化率影响显著（P<0.05）。综上所述，饲喂直链/支链淀粉为0.23和淀粉酶添加量为3 000 U/kg的饲粮可提高肉鸡的生长性能。

关键词： 直链/支链淀粉; 淀粉酶; 肉鸡; 生长性能; 互作效应

本文引用格式

马杰, 杨泰, 杨媚, 陈清华, 刘伟 . 饲粮直链/支链淀粉和淀粉酶对肉鸡生长性能的影响及其互作效应研究[J]. 动物营养学报, 2019 , 31(7) : 3086 -3094 . DOI: 10.3969/j.issn.1006-267x.2019.07.019

Abstract

The purpose of this experiment was to study the effects of amylose/amylopectin and amylase on growth performance and nutrient apparent digestibility of broilers. The experiment used a 4×3 two factor design, and a total of 960 Arbor Acres (AA) broilers at 1 day of age were randomly divided into 12 groups with 5 replicats in each group and 16 broilers in each replicat. The dietary amylose/amylopectin were 0.11, 0.23, 0.35 and 0.47, and the addition amounts of amylase were 0, 3 000 and 6 000 U/kg, respectively. The test period was 21 d, and the growth performance and nutrient apparent digestibility of broilers were determined. The results showed as follows:1) the average daily gain of broilers in the group with amylose/amylopectin of 0.23 significantly increased (P<0.05), and the feed/gain was the highest in the group with amylose/amylopectin of 0.47 (P<0.05),the other groups were not significantly different (P>0.05); the addition of 6 000 U/kg amylase in the diets significantly reduced the average daily gain of broilers (P<0.05), but the effect on the feed/gain was not significant (P>0.05); the interaction effect was not significant (P>0.05). 2) The apparent digestibility of energy, crude protein, dry matter, crude fat and calcium were the highest in the group with amylose/amylopectin of 0.11 (P<0.05), and the lowest in the group with amylose/amylopectin of 0.47 (P<0.05); the addition of amylase in diets had no significant effect on nutrient apparent digestibility (P>0.05); the interaction effect had significant effect on nutrient apparent digestibility (P<0.05). In conclusion, feeding diets with amylose/amylopectin of 0.23 and amylase addition of 3 000 U/kg can improve the growth performance of broilers.

Key words： amylose/amylopectin; amylase; broiler; growth performance; interaction effect

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