However, 100% supplementation diets of 100PBM and 100BPBM resulted in reduced performance in all growth and feed variables except total feed intake and survival. After the 42 days of study, the final weight, specific growth rate and feed conversion ratios of fish fed 75PBM and 75BPBM were not significantly different from the control. Juvenile barramundi with a mean initial weight of 3.78☐.16 g were stocked at a density of 20 fish per tank. The BPBM was used to replace FM at 75% and 100% (75BPBM and 100BPBM) contrasting against unprocessed PBM (75PBM and 100PBM) at the same levels and FM based diets as the control. The PBM was bioprocessed by baker yeast, Saccharomyces cerevisae and Lactobacillus casei. This study was undertaken to investigate whether replacing FM with BPBM improved growth performance, gut morphology and fatty acid synthesis of juvenile barramundi, Lates calcarifer.
However, little information is known regarding the use of bioprocessed PBM (BPBM) in aquaculture production. Poultry by-product meal (PBM) has been utilised as a substitute of fishmeal (FM) in many aquaculture species.
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