Performance ofClarias gariepinusFed Dried Brewer’s Yeast(Saccharomyces cerevisiae)Slurry in Replacement for Soybean Meal

Abstract

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 1.58 ± 0.01 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 (p < 0.05) 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 (p < 0.05) 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.

Growth performance and hemobiochemical parameters in South African dusky kob (Argyrosomus japonicus, Sciaenidae) offered brewer's yeast (Saccharomyces cerevisiae) as a feed additive

“…Rumsey, Winfree, and Hughes (1992) implicated purine bases as being responsible for the depressing feed intake in farm animals. Also in contrast to the findings of the current study, Solomon, Ataguba, and Itodo (2017) observed a reduction in feed intake in African catfish, Clarias gariepinus, fed a brewer's yeast diet compared to those fed a soybean diet.…”

Potentiality of new feed ingredients for aquaculture: A review

“…Rumsey et al (1991) reported that diet containing 25% brewer's dried yeast when fed to rainbow trout grew better.Oliva- Teles and Goncalves (2001) found that up to 30% brewers yeast in the diet improved feed efficiencyand 50% of the fish meal in a totally fish meal protein-based diet can be replaced with brewer's yeast in sea bass, Dicentrarchus labrax, with no adverse effect on growth. Solomon et al (2017) concluded that the optimal range of inclusion and substitution of soybean meal with dried brewer's yeast slurry meal in C. gariepinus feed liesup to 14% of dry matter.…”

Nghiên Cứu Tối Ưu Điều Kiện Sản Xuất Sinh Khối Nấm Men Saccharomyces Cerevisiae SC2.75

“…Sinh khối nấm men được sử dụng rộng rãi như nguồn cung cấp protein cho người và động vật trong thức ăn chăn nuôi hoặc các sản phẩm bổ sung cho con người (Halász, Lásztity, 1990;Solomon et al, 2017). Nhiều nghiên cứu đã sử dụng chủng nấm men S.cerevisiae để sản xuất protein đơn bào, glucan, carotenoid (Bekatorou et al, 2006;Kwiatkowski, Kwiatkowski, 2012;Mata-Gómez et al, 2014).…”