系祖轮配对维持并提高豫州褐壳蛋鸡Ⅲ系生产性能的研究  

Discussion and Practice of Rotational Breeding of Line Prog enitor on Maintenance and Improvement of Production Performance of Line Ⅲ of Yuzhou Egg-brown Layer

作　　者：宋素芳[1] 康相涛[2] 李明[2] 王彦彬[2] 

机构地区：[1]郑州牧业工程高等专科学校,河南郑州450008 [2]河南农业大学,河南郑州450002

出　　处：《华北农学报》2003年第2期103-105,共3页Acta Agriculturae Boreali-Sinica

基　　金：河南省重大科技攻关项目 ( 9410 40 60 0 )

摘　　要：对豫州褐壳蛋鸡Ⅲ系采用系祖间轮配的选配方法 ,经过连续 3个世代的选育 ,开产日龄推迟 5 .72d ,开产平均蛋重减少 0 .87g ,72周龄平均蛋重增加 2 .82 g、蛋数增加 8.6 2枚 ,蛋品质维持在较高水平 ,蛋壳颜色变深。说明对已育成的纯系采用系祖间轮配的选配方法 ,可以维持并提高其生产性能。Rotation breeding of line progenitor was adopted in line Ⅲ of Yuzhou egg brown layer. Selected successively for three generations, layers' age at f irst laying was put off for 5.65 d,and average egg weight of 72 week old was in creased by 2.82 g, and egg number was added by 8.62. Egg quality maintained hig her level and shell color became browner. It indicated that rotational breeding of line progenitor in cultivated pure strain could keep and improve their produc tion performance.

关 键 词：系祖轮配法 豫州地区 褐壳蛋鸡 Ⅲ系 生产性能 选育 开产日龄 平均蛋重 品质 

分 类 号：S831.2[农业科学—畜牧学]