Abstract
Abstract Three trials were performed to evaluate partial fish meal (FM) replacement with poultry by-products in a practical-type diet for Florida pompano, Trachinotus carolinus reared in low-salinity. Two blended poultry by-product meals (BP67, BP70), two blended chicken concentrates (CC66, CC70) and one standard pet-food grade poultry by-product meal (E150) were evaluated. The diets were formulated to contain 48% crude protein (CP) and 21 MJ/kg. Poultry by-products replaced 67% of the FM protein on an isonitrogenous basis. Trial 1 was a 10 week growth trial with juvenile (3.3 ± 0.10 g) Florida pompano. No differences were detected in growth, efficiency, feed intake, protein productive value, or body composition between the by-product diets and a FM reference diet. Trial 2 examined protein, energy, dry matter, and organic matter digestibility and amino acid availability in 50.0 ± 3.8 g Florida pompano. Apparent CP digestibility (65.6–72.9%) was significantly lower (P
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