机构地区: 广东省农业科学院
出 处: 《中国畜牧杂志》 1999年第6期16-17,共2页
摘 要: 矮小型dw 基因导入地方鸡种清远麻鸡品种中,研究结果表明,含地方鸡种血缘的矮小型鸡(dw - ) 其开产日龄比同血缘的正常型鸡(DW- ) 有提前趋势,300 日龄蛋重有降低的趋势,但未达显著水平;64 周龄入舍产蛋量和整个饲养期饲料转化率得到极显著提高。分析结果表明,这些都是dw 基因效应而引起。 Dwarf gene was introduced into a local chicken breed of Qing Yuanma to evaluate the performance of the dwarf type birds(dw-) and the normal type birds(Dw-).The results show as follows:there was a trend that the age at first egg of the dwarf type birds(dw-) was earlier than that of the normal type birds(Dw-).Compared with the normal type birds,300-day egg weight of the dwarf type decreased nonsignificantly,but hen-housed egg production and feed efficiency during the whole period improved significantly.The Results imply the effects of dwarf gene.