Impact of yeast-fermented soybean waste on broiler growth and carcass quality

M. Malahubban, . and Zakry F. A. A., . and M. A. Azemi, . and J. Kamaludeen, . and M. N. Hassan, . and Leong, S. S. (2024) Impact of yeast-fermented soybean waste on broiler growth and carcass quality. Malaysian Journal of Animal Science (Malaysia), 27 (1). pp. 32-42. ISSN 2550-2123

This study evaluated the effects of supplementing broiler diets with yeast-fermented soybean waste on growth performance and carcass characteristics. Ninety-nine three- week-old Ross-308 broiler chickens were assigned to three dietary groups: T1 (control diet), T2 (basal diet with fermented soybean waste without yeast), and T3 (basal diet with yeast-fermented soybean waste). From weeks 3 to 6, the fermented soybean waste either with yeast (T3) or without (T2) replaced 50% of the conventional soybean meal in the diet. At the end of the study, the chickens were slaughtered and analysed. Results indicated that final live body weight was similar (P > 0.05) between chickens on the yeast-fermented diet (T3) and those on the control diet (T1), while chickens on the non-yeast- fermented diet (T2) showed a significantly lower final body weight (P < 0.05) than the control group. By week 6, the feed conversion ratio (FCR) was significantly higher (P < 0.05) in both the T2 and T3 groups compared to the control. Notably, chickens on the T3 diet had significantly heavier breasts, drumsticks, and wings (P < 0.05) than those on the control diet. Overall, the inclusion of yeast-fermented soybean waste in broiler diets demonstrated potential as a partial substitute for soybean meal during the grower phase, offering a viable strategy to support sustainable and efficient protein sources in poultry production.

Full text available from: Official URL: https://mjas.my/mjas-v2/rf/pages/journal/v27i1/3.%...

Abstract

This study evaluated the effects of supplementing broiler diets with yeast-fermented soybean waste on growth performance and carcass characteristics. Ninety-nine three- week-old Ross-308 broiler chickens were assigned to three dietary groups: T1 (control diet), T2 (basal diet with fermented soybean waste without yeast), and T3 (basal diet with yeast-fermented soybean waste). From weeks 3 to 6, the fermented soybean waste either with yeast (T3) or without (T2) replaced 50% of the conventional soybean meal in the diet. At the end of the study, the chickens were slaughtered and analysed. Results indicated that final live body weight was similar (P > 0.05) between chickens on the yeast-fermented diet (T3) and those on the control diet (T1), while chickens on the non-yeast- fermented diet (T2) showed a significantly lower final body weight (P < 0.05) than the control group. By week 6, the feed conversion ratio (FCR) was significantly higher (P < 0.05) in both the T2 and T3 groups compared to the control. Notably, chickens on the T3 diet had significantly heavier breasts, drumsticks, and wings (P < 0.05) than those on the control diet. Overall, the inclusion of yeast-fermented soybean waste in broiler diets demonstrated potential as a partial substitute for soybean meal during the grower phase, offering a viable strategy to support sustainable and efficient protein sources in poultry production.

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Item Type:	Article
AGROVOC Term:	broiler litter
AGROVOC Term:	soybean meal
AGROVOC Term:	protein sources
AGROVOC Term:	fermentation
AGROVOC Term:	feeding
AGROVOC Term:	sustainable agriculture
AGROVOC Term:	yeasts
AGROVOC Term:	broiler chickens
AGROVOC Term:	body weight
Geographical Term:	Malaysia
Depositing User:	Ms. Azariah Hashim
Date Deposited:	29 Jul 2026 02:46
Last Modified:	29 Jul 2026 02:46
URI:	http://webagris.upm.edu.my/id/eprint/3550

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