麻旺鸭蛋重的选择研究

Selection of Mawang Ducks' Egg Weight

为研究麻旺鸭产蛋性状、体尺性状对蛋重的影响,对89只成年麻旺鸭蛋壳重、纵径、横径和体重、体尺性状与蛋重的相关性进行分析。结果表明,麻旺鸭蛋重与蛋壳重、纵径、横径、体重极显著相关(P<0.01),相关系数分别为0.654、0.556、0.95、0.654。蛋的横径对蛋重的直接影响达到极显著水平,通径系数为0.8221,纵径对蛋重的直接影响达到显著水平,通径系数为0.1973。蛋的横径对蛋重的决定程度为67.59%,体重对蛋重的决定程度为24.9%。研究结果提示,可以利用蛋的横径辅之体重进行蛋重的选择。

In order to study the effect of Mawang Ducks＇ egg laying performance and body measurements on egg weight, 89 adult Mawang Ducks were chosen to study the correlation between egg shell weight, transverse diameter, longitudinal diameter and body weight, body measurements and egg weight. The results show that Mawang ducks＇ egg weight and eggshell weight, vertical diameter, transverse diame- ter were significantly related （P^0.01）, the correlation coefficient was 0. 654, 0. 556, 0.95 and 0. 654. The transverse diameter of egg was influenced directly by the egg weight, which reached an extremely sig- nificant level, and the path coefficient was 0. 8221; the influence of egg weight on longitudinal diameter of egg was also significant, with a path coefficient of 0. 1973. The decision coefficient of egg transverse diameter to egg weight was 67.59%, and that of body weight to egg weight was 24.9%. The study reveals the selection of egg weight by using egg＇s transverse diameter together with body weight.