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标题：Performance of Clarias gariepinus Fed Dried Brewer’s Yeast (Saccharomyces cerevisiae) Slurry in Replacement for Soybean Meal
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作者：Shola Gabriel Solomon ; Gabriel Arome Ataguba ; Gabriel Enemona Itodo 等
期刊名称：Journal of Nutrition and Metabolism
印刷版ISSN：2090-0724
电子版ISSN：2090-0732
出版年度：2017
卷号：2017
DOI：10.1155/2017/8936060
出版社：Hindawi Publishing Corporation
摘要：Following disparity of earlier results, this study tested the performance of African catfish Clarias gariepinus fed dried brewer’s yeast slurry meal (DBYM) based diets. Fingerlings of C. gariepinus with pooled mean initial weight of g were stocked in hapas (1 m × 1 m × 1 m) immersed in an earthen pond at a density of 15 fish per cage. Five diets with increasing substitution of soybean meal with 25%, 50%, 75%, and 100% of dried brewer’s yeast and a control without dried brewer’s yeast (0% substitution) were evaluated for 8 weeks. Palatability of diets reduced with increasing levels of DBYM. Growth and utilization parameters such as weight gain, feed conversion ratio, protein efficiency ratio, and specific growth rate differed significantly () among treated groups. Specific growth rate decreased with increasing substitution while the best feed conversion ratio was obtained in the diet devoid of DBYM. Protein efficiency and utilization decreased with increasing levels of DBYM. Body composition was also affected by inclusion of DBYM with significant differences () being observed across the diets. The trend in body composition follows the utilization of the diets. We conclude that the optimal range of inclusion and substitution of soybean meal with DBYM in C. gariepinus feed is between 1% and 14% of dry matter.