摘要
性早熟是优质型肉鸡特有的重要经济性状。性成熟的程度决定产品的等级和卖价,具有性成熟外观(冠大、脸红、毛色光鲜、有一定的皮下脂肪等)是优质型肉鸡上市的基本条件。鸡在接近性成熟时,机体组成发生改变,胴体品质提高,肌间脂肪等风味物质含量增加,鸡肉口感好。性成熟早的鸡,饲养周期短,饲料转化率高,生产成本低。因此,肉鸡性早熟研究和早熟性品种(系)的培育成为优质鸡研究领域的重要方向之一。本文通过阐述早熟性品种(系)特点,探讨优质型肉鸡早熟性的选择依据、早熟性遗传、性成熟调控机制及地方代表性早熟性肉鸡品种选育的方法等,综述了优质型肉鸡早熟性育种的研究进展,并就肉鸡早熟性方面存在的问题和对策作了简要概述。
Sexual precocity is an important economic trait unique to high-quality chickens.The degree of sexual maturity determines the grade and selling price of the product,and the appearance of sexual maturity(large crown,blush,bright color,certain subcutaneous fat,etc.)is the basic condition for high-quality chicken to market.When the chicken is close to sexual maturity,the body composition changes,the carcass quality improves,the content of flavor substances such as intramuscular fat increases,and the chicken taste is good.The chicken with early sexual maturity has short feeding cycle,high feed conversion rate and low production cost.Therefore,the research of broiler precocity and the breeding of precocious breeds(lines)have become one of the important directions in the field of high-quality chicken research.By expounding the characteristics of precocity breeds(lines),discussing the selection basis of precocity of high-quality broilers,precocity inheritance,regulation mechanism of sexual maturity and breeding methods of local representative precocity broilers,this paper summarizes the research progress of precocity breeding of high-quality broilers,and briefly summarizes the problems and countermeasures in precocity of broilers.
作者
吴家
张吉发
宋莉娜
刘雪明
翁恺麒
徐琪
赵文明
张钰
WU Jia;ZHANG Jifa;SONG Lina;LIU Xueming;WENG Kaiqi;XU Qi;ZHAO Wenming;ZHANG Yu(College of Animal Science and Technology,Yangzhou Unixersity,Jiangsu Yangzhou 225009,China;Nantong Rudong County Wolf mountain chicken breeding farm,Jiangsu Nantong 226400,China)
出处
《中国畜牧杂志》
CAS
CSCD
北大核心
2024年第3期9-12,共4页
Chinese Journal of Animal Science
基金
江苏现代农业(肉鸡)产业技术体系(JATS[2022]163)。
关键词
优质肉鸡
性早熟
选育
High-quality broiler
Sexual precocity
Breeding
