Effects of water hyacinth ( Eichhornia crassipes) leaf protein concentrate as soybean protein replacement in white shrimp Litopenaeus vannamei (Boone) postlarvae diet.

Chavez, Nicole Niña G; Ragaza, Janice A; Corre, Valeriano L; Serrano, Augusto E; Traifalgar, Rex Ferdinand M

The potential of water hyacinth leaf protein concentrate ( WHLPC) as an alternative protein source to soybean meal in formulated diets for the white shrimp Litopenaeus vannamei (Boone) postlarvae, was assessed. Isonitrogenous and isolipidic diets were formulated containing 40% protein and 8% lipid. WHLPC replaced 0%, 25%, 50% and 75% of soybean meal protein in the formulated diets. Twenty postlarval Litopenaeus vannamei weighing 5.0 ± 0.00032 mg were randomly assigned to twelve 30-L aquarium tanks and were fed experimental diets for 70 days. Results show that the overall biological performance of shrimp in terms of specific growth rate ( SGR), protein efficiency ratio ( PER), feed efficiency ( FE) and survival in treatment receiving the 25% WHLPC replacement is comparable to that of the control diet. Replacement levels beyond 25% exhibited significant depression in terms of growth performance of the shrimp. Collectively, these findings indicate that WHLPC can replace 25% of soybean meal protein in the formulated diets of L. vannamei.

SOYBEAN meal; WHITELEG shrimp; WATER hyacinth; LEAF proteins; GROWTH rate

Aquaculture Research, 2016, Vol 47, Issue 8, p2642

1355-557X

Academic Journal

10.1111/are.12713