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套算法评定鹅的鸭油真代谢能值

DOI: 10.3969/j.issn.1006-267x.2013.04.009

Keywords: 鸭油,,真代谢能

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Abstract:

本文以鸭油为研究对象,探索采用套算法对不同品种鹅真代谢能(TME)值的影响,从而确定鹅的鸭油TME值评定方法。分别选取260日龄健康五龙鹅和青农灰鹅各32只(公),采用2×2×2三因素正交试验设计,2个品种鹅分别采用2种饲喂方式(定量饲喂和直接强饲),饲喂2种饲粮(基础饲粮;基础饲粮+微量元素和维生素),共分为8个处理,每个处理8只鹅。试鹅单笼饲养,每天饲喂100g,采用全收粪法收集排泄物。试验分2阶段,先饲喂基础饲粮,再饲喂鸭油饲粮,鸭油饲粮用10%的鸭油替代基础饲粮。结果表明:1)五龙鹅和青农灰鹅的鸭油TME值分别为37.79和38.15MJ/kg;2)品种内4个试验组的TME值,采用定量饲喂并添加微量元素和维生素组最高。3)品种间比较,青农灰鹅对鸭油的TME值显著高于五龙鹅(P<0.05)。综上所述,对鹅的鸭油代谢能值评定时,定量饲喂并添加微量元素和维生素测定的数据稳定性较高;鹅的鸭油TME值为37.79~38.15MJ/kg;鹅的鸭油饲粮代谢能值品种之间存在差异。

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