Long-term effects of dietary cottonseed meal on growth and reproductive performance of rainbow trout: Three-year study

A long-term feeding experiment (35 months) was conducted to study the effects of substitution of fish meal (FM) by cottonseed meal (CM) on growth, feed utilization and reproductive physiology in rainbow trout (Oncorhynchus mykiss). Five groups of fish (1.5 years old; 246 ± 10 g) were fed one of five experimental diets formulated to substitute FM with CM (147, 294, 441 and 588 g/kg designated as diets CM0, CM25, CM50, CM75 and CM100,...