Banana leaf in the diet of laying hens in cage free system

ABSTRACT. The aim of this research was evaluate the productive performance, egg quality and the endoparasites presence on Carijó laying hens in Cage Free system, fed with two experimental diets, one of them supplemented with fresh banana leaf in natura. It were used 196 laying hens with twenty-four weeks of age, distributed in a completely randomized design with 14 boxes, two experimental diets and seven replicates, by treatment with fourteen birds per experimental unit. The variables analyzed were: feed intake; egg production; egg mass: feed conversion per egg mass; feed conversion per dozen eggs; egg weight; albumen weight; yolk weight; shell weight; yolk percentage; albumen percentage shell percentage; yolk pigmentation and the presence of endoparasites. No influence (p > 0.05) were found, for performance and egg production, in Carijó laying hens fed supplemented with banana leaf in natura. For the treatment with inclusion of banana leaf, yolk pigmentation were superior (p < 0.05) when compared to control diet, producing eggs with more yolks orange color. In respect to endoparasite analysis, there was significant effect (p < 0.05) in the percentage of infections present in excretas. Among the treatments evaluated, the one with banana leaf supplementation reduced in 26.54% the endoparasites presence. The inclusion of banana leaf in the diet of Carijo laying hens does not affect performance and eggs quality and decreases the amount of endoparasites of the genus Strogyloides spp.

摘要：本研究旨在评估无笼养殖系统下，饲喂两种试验日粮对卡里霍（Carijó）蛋鸡的生产性能、蛋品质以及体内寄生虫感染情况的影响，其中一种试验日粮添加了新鲜天然香蕉叶。本试验选用196羽24周龄的蛋鸡，采用完全随机试验设计，设置2种试验日粮，每个处理设7个重复，每个试验单元饲养14羽蛋鸡，总计14个试验单元。本试验测定的指标包括：采食量、产蛋率、蛋总重、蛋总重料重比、每打蛋料重比、蛋重、蛋清重、蛋黄重、蛋壳重、蛋黄占比、蛋清占比、蛋壳占比、蛋黄着色度以及体内寄生虫感染情况。结果显示，饲喂添加天然新鲜香蕉叶日粮的卡里霍蛋鸡，其生产性能与产蛋表现均未受到显著影响（p>0.05）。与对照组日粮相比，添加天然新鲜香蕉叶的试验组蛋黄着色度显著更高（p<0.05），所产鸡蛋的蛋黄颜色更偏向橙黄色。针对体内寄生虫检测分析，试验组鸡只粪便的感染率存在显著差异（p<0.05）；在所有受试处理组中，添加香蕉叶的试验组体内寄生虫感染率降低了26.54%。综上，在卡里霍蛋鸡日粮中添加天然新鲜香蕉叶，不会影响其生产性能与蛋品质，但可降低类圆线虫属（Strongyloides spp.）寄生虫的感染数量。