种番鸭育成期限制饲养效果的观测

The Study of the Effects of Restricted Feeding during the Growing Stage of Breeding Muscovy Ducks

3组10～26周龄后备种番鸭在相同饲养管理条件下，眼量饲喂代谢能相同（2400千卡／公斤）和粗蛋白不同（11．5％。13％和14．5％）的3种日粮；实验结果表明：公母番鸭育成期采用每日限饲法（日喂量200克和125克），日粮营养水平：代谢能2460千卡／公斤和粗蛋白11．5％，已能满足生长发育正常需要，其成活率高达97～98％，体重达到种番鸭要求的标准并节省饲料成本。

Three groups of breeding muscovy ducks were restrictedly fed with three types of rations including the same.ME value (2460kcal/kg ) and different cp concentration (11. 5 %, 13 %and14. 5 % ) under the same feeding conditions from 10 to 26 weeks of age. The results showed that during male and female muscovy ducks were restrictedly fed daily (♂: 200g, ♀: 125g per day), the livability of the group fed with the ration containing 2460 kcal/kg ME and 11. 5% cpconcentration was 97% to 98%, which demonstrated that breeding muscovy ducks were thrifty and reached the standard weight as feeding to appetite and thus saved the cost of feed economically.