Effect of replacing fish meal protein by shrimp waste meal protein with or without supplementation of amino acids on performance and cost economics of broilers

Mounica, N., Ramana, J.V, Rao, D. Srinivasa, Suresh, J. and Kavitha, R 2020. Effect of replacing fish meal protein by shrimp waste meal protein with or without supplementation of amino acids on performance and cost economics of broilers. Indian Journal of Poultry Science, 55(2): 129–132.

A feeding trial was conducted for 6 weeks using 375 day old commercial broiler chicks to ascertain the effect of Shrimp waste meal as a replacement for fish meal in broiler diet. Chicks were distributed randomly to five treatments with three replicates of twenty five birds each. In pre-starter diet, the fish meal contribution to the dietary crude protein was replaced with shrimp waste meal at 0% (T₁), 20% (T₂), 30% (T₃), T₂ + synthetic lysine and methionine (T₄), T₃ + synthetic lysine and methionine (T₅). In starter and finisher diets the shrimp waste meal protein was added up to 0% (T₁), 50% (T₂), 100% (T₃), 50% + synthetic lysine and methionine (T₄), 100% + synthetic lysine and methionine (T₅). In starter, finisher and overall growth phases birds fed (T₄, T₂ and T₁) diets had significantly (P°0.01) higher weight gains when compared to birds fed T₃ and T₅ groups. Irrespective of the growth phase, the feed conversion ratio (FCR) was comparable among the treatments. The feed cost per kg live weight gain ranged from Rs.48.08 (T₄) to 51.13 (T₅). The feed cost per kg live weight gain was significantly (P°0.01) reduced in birds fed with diets T₁, T₂ and T₄ when compared to T₃ and T₅. The results of the present study led to the conclusion that, the protein from fish meal can be safely substituted up to 30% with the Shrimp waste meal protein in pre-starter and up to 50% in starter and finisher broiler diets along with supplementation of synthetic lysine and methionine.