Aquaculture lndonesia (2002), 3 (2) : 67-74

Evaluation of Nutritive Value of Fisheries by-Products Based DietsA�for Cultured Penaeus monodonA�Using Essentiall Amino Acid Index (EAAI) andA�in Vivo Digestibility Measurements

Agung Sudaryono

Aquaculture Study Program
Faculty of Fisheries and Marine Science, Diponegoro University
Jl. Hayam Wuruk 4-A,Semarang, Central Java, Indonesia
E-mail: agungsud@telkom.net

Abstract

Essential amino acid index (EAAI) and in vivo digestibility measurements using chromic oxide (Cr2O3) at level of 1% as an indigestible inert marker was used to evaluate the nutritional value of fisheries by-products based diets for cultured juvenile shrimp, Penaeus monodon (Fabricius).Three test diets contained combinations of alternative less expensive protein sources of laboratory preparations of lobster waste and sardine meals (DIET1), scallop waste and shrimp head meals (DlET2) and commercial preparation of fish and shrimp meals as a control diet (DIET3). These diets had similar EAAIs of 0.95, 0.95 and 0.94, respectively. No significant differences (P>0,05) in apparent dry matter digestibility and apparent protein digestibility were found among the dietary treatments ranging 75.8-78.1% and 92.0-92.8%, respectively. The results of the present study showed that meals prepared from fisheries by-products were effective and potential as alternative protein sources in formulated diets for cultured juvenile P. monodon. The lobster and scallop wastes based diets had good nutritive values and a similar performance to the commercial fish meal and shrimp meal based control diet in terms of IAAI and feed nutrition digestibility for cultured juvenile P. monodon

Keywords: Fisheries waste meals; Practical diets; EAAI; Digestibility; Penaeus monodon

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