| 肉鸭种蛋重与蛋形指数对孵化效果的影响 |
| |
| 引用本文： | 张昊,于桂阳,覃开权. 肉鸭种蛋重与蛋形指数对孵化效果的影响[J]. 湖南农业大学学报(自然科学版), 2007, 33(5): 599-601 |
| |
| 作者姓名： | 张昊 于桂阳 覃开权 |
| |
| 作者单位： | 永州职业技术学院,湖南,永州,425100;永州职业技术学院,湖南,永州,425100;永州职业技术学院,湖南,永州,425100 |
| |
| 基金项目： | 湖南省永州市科技局项目(200609) |
| |
| 摘 要： | 将肉鸭种蛋按蛋重、蛋形指数大小各分为5组,在相同条件下孵化.结果表明,蛋重、蛋形指数对受精率和早期死胚率无显著影响(P>0.05),蛋重为85.5～100.6g(D,E)组、蛋形指数为1.15～1.25(F)和1.59～1.69(J)组中后期死胚率显著升高;蛋重为75.3～85.4g时,受精蛋孵化率和入孵蛋孵化率最高,分别为91.4%～95.7%和85.3%～89.3%;蛋形指数为1.26～1.47时,受精蛋孵化率和入孵蛋孵化率最高,分别为90.9%～97.2%和86.7%～93.3%.
|
| 关 键 词： | 肉鸭 蛋重 蛋形指数 孵化率 |
| 文章编号： | 1007-1032（2007）05-0599-03 |
| 修稿时间： | 2007-06-17 |
Effect of egg weight or shape index on hatching ratio of breeding egg from meat ducks |
| |
| ZHANG Hao,YU Gui-yang,QIN Kai-quan. Effect of egg weight or shape index on hatching ratio of breeding egg from meat ducks[J]. Journal of Hunan Agricultural University, 2007, 33(5): 599-601 |
| |
| Authors: | ZHANG Hao YU Gui-yang QIN Kai-quan |
| |
| Affiliation: | Yongzhou Vocational and Technical College, Yongzhou, Hunan 425100, China |
| |
| Abstract: | Breeding eggs, divided into 2 separate five groups one based on egg weights another based on shape index , were hatched under the same conditions. The results showed that the fertility ratio and the death ratio of early embryo were not affected by the two factors, but the embryo death rates at middle and last period increased significantly in group D, E, F and J. Fertile eggs and hatching eggs gained a higher hatchability of 91.4% - 95.7% and 85.3% - 89.3%, respectively, while egg weight ranged from 75.3 g to 85.4 g. And also they gained a higher hatchability of 90.9% - 97.2% and 86.7% - 93.3%, respectively, while egg shape index ranged from 1.26 to 1.47. |
| |
| Keywords: | meat duck egg weight egg shape index hatchability |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
