Growth performance and carcass characteristics of rabbits fed concentrate diets containing graded levels of Brassica oleracea outer leaves and Musa paradisiaca leaves

Pub Date : 2024-03-28 DOI:10.4995/wrs.2024.19616
D. Osei, S. O. Apori, Julius Kofi Hagan, David Amedorme, Raphael Ayizanga
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Abstract

Ninety-six (96) 8-wk-old “mixed breed” of New Zealand white, California white and chinchilla rabbits were used to determine the growth performance, carcass and organ percentages of rabbits fed concentrate diets containing graded levels of Brassica oleracea outer leaves and Musa paradisiaca leaves. The rabbits were assigned to two groups of 48. Those in group 1 were allotted to four dietary treatments with concentrate diets containing 0, 10, 20 and 30% inclusion levels of B. oleracea outer leaves for one week and 12-wk adaptation and testing periods, respectively, for growth performance evaluation. Similar treatment and design were adopted for group 2 rabbits using graded levels of M. paradisiaca leaves. Six rabbits were randomly selected from each treatment group for slaughter at the end of the testing period for carcass and internal organ characteristics evaluation. There were no dietary effects on the parameters of rabbits fed graded levels of B. oleracea outer leaves except for M. paradisiaca, where the control diet had the lowest feed intake and the least (P<0.05) feed conversion ratio comparable to 30% inclusion level and final body weight, which was the highest (P<0.05) for rabbits fed diets containing 10 and 20% inclusion levels of M. paradisiaca leaves. The cost of feed was highest for the control diets, and reduced with increasing inclusion levels of the leaves in the diets. None of the rabbits died during the experimental period. The findings suggest that rabbits can be fed concentrate diets containing B. oleracea outer leaves and M. paradisiaca leaves up to 30% inclusion level for good growth performance and high carcass characteristics at a lower production cost than concentrate diets, while maintaining good health.
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兔子的生长性能和胴体特征:饲喂含有不同含量甘蓝外叶和麝香叶的精饲料
研究人员用 96 只 8 周大的新西兰白兔、加利福尼亚白兔和栗鼠兔组成的 "混种兔 "来测定兔子的生长性能、胴体和器官百分比,这些兔子喂食的精饲料中含有不同含量的甘蓝外叶和麝香草叶。兔子被分成两组,每组 48 只。第 1 组的兔子被分配到四个日粮处理中,分别饲喂含 0、10、20 和 30%甘蓝外叶的精饲料,进行为期一周和 12 周的适应期和测试期,以评估兔子的生长性能。对第 2 组兔子也采用了类似的处理和设计,使用分级的天堂草叶。试验期结束后,从每个处理组中随机抽取六只兔子进行屠宰,以评估胴体和内脏器官特征。除了天堂鸟叶之外,日粮对兔子的各项指标没有影响,其中对照组日粮的采食量最低,饲料转化率最低(P<0.05),与 30% 添加量和最终体重相当,而添加 10% 和 20% 天堂鸟叶的日粮的采食量和最终体重最高(P<0.05)。饲料成本在对照组日粮中最高,随着日粮中茎叶添加量的增加而降低。在实验期间,没有一只兔子死亡。研究结果表明,兔子可以饲喂含油菜外叶和天堂草叶高达 30% 的精饲料,以获得良好的生长性能和较高的胴体特性,而且生产成本低于精饲料,同时还能保持良好的健康状况。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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