Replacement of fish meal by meat and bone meal in practical diets for the white shrimp Litopenaeus vannamai (Boone)

The use of meat and bone meal (MBM) was evaluated as a replacement for fish meal in a practical diet formulated to contain 41% protein and 8% lipid. Anchovy meal was replaced by 0%, 20%, 30%, 40%, 50%, 60% and 80% of MBM (diets 1-7) respectively. Healthy post larvae of Litopenaeus vannamei were reared in an indoor, semi-closed recirculating system. Each dietary treatment was fed to triplicate groups of 40 shrimp per tank (260 L) arranged in a completely randomized design. The shrimp were hand-fed to near-satiation three times daily between 07:00 and 18:00 hours for 56 days. There were no significant differences (P > 0.05) in growth performance among shrimp fed diets 1-6. However, shrimp fed diet 7 had significantly lower (P < 0.05) growth than those fed diet 2 or diet 4. Survival ranged from 95% to 100% and did not significantly (P > 0.05) differ. Feed conversion ratio (FCR) and carcass composition of the shrimp were not significantly (P > 0.05) affected by dietary treatments. No significant differences (P > 0.05) in protein efficiency ratio (PER) were found among shrimp fed diets 1-6. However, shrimp fed diet 7 had significantly lower (P < 0.05) PER than those fed diet 1 or diet 4. Results showed that up to 60% of fish meal protein can be replaced by MBM with no adverse effects on growth, survival, FCR, PER and body composition of L. vannamei.