木薯渣对22~49日龄仔鹅生长性能、屠宰性能及内脏器官发育的影响

张芬芬, 王志跃, 杨海明, 李彦品, 马尹鹏, 谢燕娟

doi:10.3969/j.issn.1006-267x.2015.06.017

动物营养学报 >

2015 , Vol. 27 >Issue 6: 1804 - 1812

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.06.017

饲料资源开发 Feed Resources Development

木薯渣对22~49日龄仔鹅生长性能、屠宰性能及内脏器官发育的影响

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扬州大学动物科学与技术学院, 扬州 225009

张芬芬(1988—),女,河南兰考人,硕士研究生,从事家禽营养与生产方面的研究。E-mail: 673858524@qq.com

收稿日期: 2015-01-04

网络出版日期: 2015-06-17

基金资助

国家公益性行业(农业)科研专项(201303144)

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Effects of Cassava Residues on Growth Performance, Slaughter Performance and Visceral Development of Geese at 22 to 49 Days of Age

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College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China

Received date: 2015-01-04

Online published: 2015-06-17

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摘要

本试验旨在研究饲粮中添加不同水平木薯渣对22~49日龄仔鹅生长性能、屠宰性能及内脏器官发育的影响。选取300只19日龄健康、体重相近的扬州鹅公鹅,随机分为5组,每组6个重复,每个重复10只。对照组饲喂基础饲粮,试验组分别饲喂添加5%、10%、15%和20%木薯渣的试验饲粮,试验期28 d。结果表明:1)与对照组相比,饲粮中添加木薯渣显著提高22~28日龄、29~35日龄、22~49日龄仔鹅的平均日采食量和22~28日龄、22~49日龄仔鹅的平均日增重(P<0.05),其中22~49日龄仔鹅的平均日增重与木薯渣添加水平呈二次曲线关系(P=0.017),达到最高平均日增重的木薯渣添加水平是12.4%。2)与对照组相比,饲粮中添加木薯渣显著降低仔鹅的肌胃指数和十二指肠的相对重量(P<0.05)。3)对各组饲粮增重成本降低的百分比进行曲线模拟,结果呈现二次曲线关系(P<0.05);当饲粮中木薯渣添加水平为17.9%时,增重成本降低百分比值最大。由此可见,饲粮中添加木薯渣可以促进22~49日龄仔鹅生长,降低饲料成本,对肌胃、十二指肠的发育有一定的影响。根据饲粮中添加木薯渣对平均日增重最高限量和饲料增重成本的最低限量,建议添加水平为12.4%~17.9%。

关键词： 木薯渣; 仔鹅; 生长性能; 屠宰性能; 内脏发育; 经济效益

本文引用格式

张芬芬, 王志跃, 杨海明, 李彦品, 马尹鹏, 谢燕娟 . 木薯渣对22~49日龄仔鹅生长性能、屠宰性能及内脏器官发育的影响[J]. 动物营养学报, 2015 , 27(6) : 1804 -1812 . DOI: 10.3969/j.issn.1006-267x.2015.06.017

Abstract

This experiment was conducted to investigate the effects of dietary cassava residues supplemental level on growth performance, slaughter performance and visceral development of geese at 22 to 49 days of age. Three hundred 19-day-old healthy male geese with similar body weight were randomly allocated into 5 groups with 6 replicates in each group and 10 geese in each replicate. The control group was fed a basal diet, and experimental groups were fed experimental diets supplied with 5%, 10%, 15% and 20% cassava residues, respectively. The experiment lasted for 28 days.The results showed as follows: 1) compared with the control group, dietary supplied with cassava residues significantly improved the average daily feed intake (ADFI) at 22 to 28, 29 to 35 and 22 to 49 days of age and the average daily gain (ADG) at 22 to 28, 22 to 49 days of age (P<0.05). The ADG of geese at 22 to 49 days had a quadratic curve relationship with the supplemental level of cassava residues (P=0.017). When the ADG achieved highest, the supplemental level of cassava residues was 12.4%. 2) Compared with the control group, dietary supplied with cassava residues significantly reduced muscular stomach index and the relative weight of duodenum (P<0.05). 3) The reduce percentage of fodder costs of each groups had a relationship of quadratic curve (P<0.05). When the amount of cassava residues was 17.9%, the percentage was biggest. Therefore, the diets of adding appropriate cassava residues can stimulate the growth of geese and reduce the costs of fodder at 22 to 49 days of age. They also has a certain influence on the development of muscular stomach and duodenum. According to the average daily gain maximum limits and feed cost minimum limit, the suggested amount of cassava residues added to dietary is 12.4% to 17.9%.

Key words： cassava residues; geese; growth performance; slaughter performance; visceral development; economic benefits

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