Metabolizable energy and nutrient digestibility of shrimp waste meal obtained from extractive fishing for broilers

•Shrimp waste meal, from extractive fishing had a good nutritional property.•Shrimp waste meal increases nitrogen retention in broilers chickens.•The metabolizable energy value of shrimp waste meal was 6.524 MJ/kg of DM.•Energy availability on a DM basis was highest in 100 g/kg shrimp waste meal. The energy values and nutrient digestibility of shrimp waste meal (SWM), obtained from extractive fishing, were determined in 2 experiments with broiler chickens. In experiment 1, 180 broiler chickens were randomly distributed into 5 treatments of 6 replicates with 6 birds each. The corn-soybean meal basal diet (BD) and 4 test diets consisted of inclusion of 50, 100, 150 or 200 g/kg SWM were evaluated. In experiment 2, 240 birds were randomly distributed into 4 treatments (0, 50, 100, or 150 g/kg SWM) of 10 replicates with 6 birds each. Non-inclusion of SWM (0 g/kg) was consisted of a protein-free diet. The metabolizable energy (ME) and nitrogen-corrected metabolizable energy (MEn) of the test ingredient (SWM) were determined by the regression method. Dry matter (DM), crude protein (CP), ether extract (EE) and ash were 890, 326, 39, and 411 g/kg, respectively and the respective gross energy (GE) was 9.98 MJ/kg. The inclusion of SWM to the BD, linearly decreased (P