GH基因对黑羽番鸭体重和屠宰性能的遗传效应分析

浙江农业学报

GH基因对黑羽番鸭体重和屠宰性能的遗传效应分析

1江苏农牧科技职业学院，江苏泰州 225300；2 国家级水禽基因库，江苏泰州 225300

出版日期:2015-01-25 发布日期:2015-01-17

Genetic effects of GH gene on body weight and butcher performance in black Muscovy duck

1 Jiangsu Agri-animal Husbandry Vocational College，Taizhou Jiangsu 225300， China；2 National Gene Bank of Waterfowl Resources， Taizhou Jiangsu 225300， China

Online:2015-01-25 Published:2015-01-17

摘要/Abstract

摘要： 采用PCR-SSCP方法检测生长激素基因（GH）在黑羽番鸭群体中的多态性，并分析GH基因与黑羽番鸭体重、屠宰性能的关系。结果表明：在GH基因第1内含子上发现了G945A，T1039G共2个SNP，形成了CC型、CD型、DD型3种基因型，群体纯合度为05036，多态信息含量为03732。在黑羽番鸭早期生长发育过程中，CC型公鸭体重在不同周龄时处于最高值。在13周龄屠宰时，公鸭CC型的宰前活重、屠体重、半净膛重、全净膛重、腹脂重、腺肌胃重显著高于CD型和DD型（P＜0.05），CC型心重显著高于CD型（P＜0.05），CC型、CD型、DD型 3种基因型间屠宰指标百分比无显著差异（P＞0.05）。母鸭所有指标在3种基因型间均无显著差异（P＞0.05）。这些关联分析表明C基因可能是公鸭早期增重的有利基因。

关键词: 黑羽番鸭, 生长激素基因, 体重, 屠宰性能

Abstract: The polymorphism of GH gene was detected using PCR-SSCP in black Muscovy duck. The association between GH gene and body weight， butcher performance of black Muscovy duck was analyzed. The results showed that two SNPs were detected in intron 1 of GH gene， which included G945A and T1039G. The mutations formed CC， CD and DD genotypes. The homozygosity and PIC were 05036 and 03732， respectively. The body weight of CC male was highest at different weeks in process of black Muscovy ducks early growth. When the ducks were slaughtered at 13-week-old， the live weight， dressed weight， half-eviscerated weight， eviscerated weight， abdominal fat weight and glandular muscle stomach weight of CC male ducks was significantly higher than that of CD and DD male ducks （P＜0.05）. The heart weight of CC male ducks were significantly higher than those of CD male ducks （P＜0.05）. There was not significant difference in the percentage indexes of slaughter among the three genotypes （CC， CD and DD）（P＞0.05）. All of the female ducks indexes had no obvious difference among the three genotypes （P＞0.05）. The correlation analysis implied that allele C maybe were the favorable genes for body weight in male ducks.

Key words: black Muscovy duck, GH gene, body weight, butcher performance

董飚1，2，段修军1，2，孙国波1，2，王丽华1，卞友庆2. GH基因对黑羽番鸭体重和屠宰性能的遗传效应分析[J]. 浙江农业学报.

DONG Biao1，2， DUAN Xiu\|jun1，2， SUN Guo\|bo1，2， WANG Li\|hua1， BIAN You\|qing2. Genetic effects of GH gene on body weight and butcher performance in black Muscovy duck[J]. .

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