矮小型褐壳蛋鸡产蛋时间和间隔的统计分析  

Statistical Analysis of Oviposition Time and Interval of the Dwarf Brown-egg Layers

作　　者：徐来仁[1,2] 杨宁[1,2] 

机构地区：[1]中国农业大学动物科技学院 [2]浙江省农业科学院畜牧兽医研究所

出　　处：《中国畜牧杂志》1999年第2期6-9,共4页Chinese Journal of Animal Science

基　　金：国家自然科学基金

摘　　要：本文对８８０只纯系矮小型褐壳蛋鸡的产蛋时间进行了连续５天的观察，分析结果表明，矮小型褐壳蛋鸡的产蛋时间集中在上午１２时以前，并以９：００～１０：００期间产蛋最为密集，占全天产蛋的１９．５％。连产内第一枚蛋产出时间集中在上午（８９：３３％），以７：００～９：００间产蛋最多（４９．７１％）；而最后一枚蛋产出时间集中在下午（７１．２０％），以２：００～４：００间产蛋最多（３６．５８％）。矮小型褐壳蛋鸡连产内产蛋间隔范围为２２．３５～３１．１５小时，每枚蛋平均间隔高峰在２４小时（３６．０％），群体平均产蛋间隔为２５．０８小时。相邻连产间间隔时间的变异范围很大，最短为３８．０小时，最长达１００．４５小时。The oviposition time of 880 hens in a dwarf brown-egg pureline were recorded for 5 consecutive days.Analysis indicated that the oviposition time of the dwarf brown-egg layers primarily occurrded before 12am,with a peak of 19.5% between 9am and 10am.The first egg in a clutch was laid before 12am for 89.33% of all hens,and 49.71% of the first eggs in clutches were laid between 7am and 9am.However,the last eggs of clutches tended to be laid in the afternoon,with 36.58% of the last eggs between 2pm and 4pm.The oviposition intervals within clutch ranged from 22.35h to 31.15h with the mean 25.08h.The oviposition interval between 2 consecutive clutches varied greatly,and the shortest was 38.0h and the longest 100.45h.

关 键 词：矮小型褐壳蛋鸡 产蛋时间 产蛋间隔 鸡 

分 类 号：S831.1[农业科学—畜牧学]