【作者】 苏伟岳；

【导师】 施启顺； 杨承忠；

【作者基本信息】 湖南农业大学 ， 养殖， 2003， 硕士

【摘要】 本试验以仙湖3号鸭种鸭为试验研究对象，在相同的饲养管理条件下，对种鸭4周龄限饲与8周龄限饲两种饲喂技术进行对比试验。 试验中1860只仙湖3号鸭父母代雏鸭随机分成Ⅰ、Ⅱ两组，每组930只，其中公雏130只，母雏800只。Ⅰ组为对照组，采用8周龄限饲饲喂技术：8周龄前采用自由采食，8周龄后至开产前限制饲喂。Ⅱ组为试验组，采用4周龄限饲饲喂技术：4周龄前自由采食，4周龄后至开产前限制饲喂。经过64周试验，结果如下： Ⅰ、Ⅱ两组种鸭分别在27、26周龄见到第一个蛋，并且分别在36、30周龄开产，在44、40周龄达到产蛋高峰。 Ⅰ、Ⅱ两组种鸭64周龄个体平均产蛋量分别为133、150个，64周产蛋量分别为96409、110340个。Ⅰ、Ⅱ两组种鸭开产至64周龄每周平均产蛋率分别为69.97％、65.72％，种蛋合格率分别为89.29％、87.22％，种蛋受精率分别94.67％、93.93％，入孵蛋孵化率分别为85.80％、84.32％，健雏率分别为97.93％、98.01％，经差异显著性检验，均不显著，说明不同的饲喂技术对上述指标无显著影响。 试验全期Ⅰ、Ⅱ两组种鸭平均个体耗料量分别为95.861kg、94.212kg，总耗料量分别为79160kg、77720kg。Ⅰ组饲料消耗明显高于Ⅱ组。 经生产效益分析Ⅰ、Ⅱ两组利润分别为-11103.04元、7307.72元。从经济的角度讲，Ⅱ组比Ⅰ组划算得多。 本试验研究表明，8周龄限饲技术下的种鸭产蛋率、种蛋合格率与受精率虽略高于4周龄限饲技术，但耗料多、产蛋少、经济效益低，因此4周龄限饲技术优于8周龄限饲技术。更多还原

【Abstract】 Based on the same feeding husbandry, two different feeding programs (restricted seding from 4 week-old or 8 week-old ) were contrasted on Xianhu NO.3 Breeder ucks.The total 1860 ducklings of parental generation were randomly divided into ontrol group I and comparison group II, each group included 930 individuals 30 male ducklings and 800 female ducklings), respectively. Restricted feeding ograms were practised in group I (ad libitum before 8 week-old, restricted eding from 8 week-old to age at first laying) and group II (ad libitum before 4 eek-old, restricted feeding from 4 week-old to age at first laying).After 64 weeks, e results indicated as follows:The first egg was seen at 27 and 26 weeks in group I and group II , spectively. The age at first laying and the age of laying climax were 36 and 30 eeks, 44 and 40 weeks in group I and group II, respectively.The average amount of laying eggs were 133 and 150,the total production of ying eggs was 96409 and 110340,respectively. The average laying rate of breeding gs was 69.97% and 65.72%, the eligibility of breeding eggs was 89.29% and .22%, fertility rate of breeding eggs was 94.67% and 93.93%, the hatchability ched 85.80% and 84.32%, the healthy duckling percentage reached 97.93% and .01%. All the indexes above showed no significant difference, which illustrated nodifference for two different programs.The total feeding consumption was 79160 kg in group I and 77720 kg in group II, the total feeding consumption of each breeder duck was 95.861 kg in group I and 94.212 kg in group II. The feeding consumption in group I was significant higher than that in group II. By comparison the profits of group I (-11103.04 yuan) and group II (7307.72 yuan), the profit in group II was more economical efficient than that in group I .Although the laying ability, eligibility and hatchability of breeding eggs were slightly higher in group I than those in group II , there existed more feed consumption, lower laying eggs and economical profits in group I . All these showed the program of restricted feeding at 4 week-old was better than the program of restricted feeding at 8 week-old.更多还原