【摘要】 采用家系选择法对吉林省地方良种鹅———农安籽鹅的产蛋数进行 5个世代精心选育 ,形成了体貌一致、生产性能和遗传性能都较稳定的———“吉林农大白鹅”蛋用品系。其成龄体重 ,公鹅 ( 4 1± 0 1 4 )kg,母鹅( 3 2± 0 2 1 )kg;年产蛋数 ( 1 2 5 6± 7 8)枚 ,比 1世代提高 4 0枚 ,平均蛋重 ( 1 33 6± 7 6 )g,2～ 5月份为产蛋高峰期 ,受精率为 85 8%。更多还原

【Abstract】 Nong′an Zi goose (Jilin province local good goose) was selected for increasing egg production through five generations by means of family selection.An high egg production line was successfully bred with identical figure and appearance,stable productive and genetic performance. Body weight of adult,male was (4.1±0.14) kg,female was (3.2±0.21) kg; annual egg production were (125.6±7.8),increasing 40 eggs than first generation.Average egg weight was (133.6±7.6) g. Peak laying period was in February to May, fertility rate was 85.8%.更多还原