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作 者:苏伟岳[1] 杨承忠[1] 施启顺[2] 黄得纯[1] 杨冰[1]
机构地区:[1]佛山科学技术学院,广东佛山528231 [2]湖南农业大学,湖南长沙410128
出 处:《中国家禽》2006年第2期17-19,共3页China Poultry
摘 要:试验以1860只仙湖鸭父母代雏鸭随机分成Ⅰ、Ⅱ两组,每组930只,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。其中Ⅰ组为对照组,采用8周龄限饲饲喂技术;Ⅱ组为试验组,采用4周龄限饲饲喂技术。经过64周试验,结果表明,8周龄限饲技术下的种鸭产蛋率、种蛋合格率、受精率与孵化率虽略高于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。The total 1860 ducklings of parental generation were randomly divided into control group Ⅰ and comparison group Ⅱ ,each group included 930 individuals,respectively. Restricted feeding programs were practised in group Ⅰ (ad libitum before 8 week-old, restricted feeding from 8 week-old to age at first laying) and group Ⅱ (ad libitum before 4 week-old,restricted feeding from 4 week-old to age at first laying). After 64 weeks,the results showed the program of restricted feeding at 4 week-old was better than the program of restricted feeding at 8 week-old.
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