March 28, 2023 USTFA

Study shows insect and poultry by-product meals boost growth and welfare of rainbow trout

A new study showed that processed animal proteins improved growth, performance, gut health and microbiota composition, while also easing intestinal inflammation of rainbow trout.

The study, published in the journal MDPI, reveals how black soldier fly meals as sources of protein are accelerating the transition to a more sustainable food system by replacing fishmeal protein in the diet of rainbow trout.

Scientists have found that rainbow trout show even better growth performance, dietary nutrient and energy retention efficiency, and gut function when fed high levels of the poultry-by-product meal (PBM) and insect meal from the black soldier fly (BSFM), either singly or combined, than on a fishmeal-based diet…

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