苏邮1号蛋鸭笼养适应性研究

目的]研究苏邮1号蛋鸭上笼后行为、生理指标的变化情况以及对"A"字型层架式鸭笼的适应能力。方法]以高邮鸭为对照品种,以苏邮1号蛋鸭为试验动物,同时间出雏,饲养至100 d,同时上笼,观察上笼后的行为和血浆中皮质酮的变化。设计"A"字型层架式鸭笼,分上、中、下3层,采用单因子试验设计,分析不同阶梯位置对苏邮1号蛋鸭开产日龄、43周龄产蛋数、产蛋期饲料转化率以及成活率的影响。结果]苏邮1号蛋鸭与高邮鸭对上笼应激反应的变化规律一致。与体重较大的高邮鸭相比,苏邮1号蛋鸭对上笼刺激表现出更为激烈的行为和生理反应,但对上笼后的饮水和采食则表现出较快的适应性。苏邮1号蛋鸭对"A"字型层架式鸭笼有很好的适应性,不同阶梯位置对产蛋初期开产日龄、43周龄产蛋数、成活率有显著影响,而其对饲料转化率的影响不大。结论]苏邮1号蛋鸭对"A"字型层架式鸭笼有很好的适应性,生产中可采用笼养方式大规模饲养苏邮1号蛋鸭配套系。

Study on the Adaptability of Suyou 1 Laying Duck in Captivity

Objective] To study the changes of behaviors and physiological indices of Suyou 1 laying ducks after caging and their adaptability to “A” type layer duck cage.Method] With Gaoyou Duck as control and taking Suyou 1 laying ducks as test animals, they were hatched and driven into the cage on the100 th day.The changes of behaviors after caging and corticosterone in plasma were observed.“A” type layer duck cage with three layers was designed. Using single factor experiment design, the effects of different stage position on the age at first egg , egg production within 43 weeks, feed conversion ratio and survival rate of Suyou 1 laying duck were analyzed. Result] The stress response of Suyou 1 laying duck in cage showed the consistent change law with that of Gaoyou Duck .Compared with Gaoyou Duck with greater body weight, Suyou 1 laying ducks showed more intense behavior and physiological responses to caging stimulation and faster adaptability to food and drinking water.Suyou 1 laying duck had good adaptability to “A” layer type duck cage.And different stage position had significant effects on the age at first egg, egg production within 43 weeks and survival rate of Suyou 1laying duck ,but it had little effects on the feed conversion ra -tio.Conclusion] Suyou 1 laying duck had good adaptability to “A” type layer duck cage.Suyou 1 laying duck complete set line should be fed in captivity in a large scale in the production.