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Apparent digestibility of selected feed ingredients in diets formulated for the sub‐adult mud crab, Scylla paramamosain , in Vietnam
Author(s) -
Truong Phuong Ha,
Anderson Alexander James,
Mather Peter Barclay,
Paterson Brian Douglas,
Richardson Neil Andrew
Publication year - 2009
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/j.1365-2109.2008.02095.x
Subject(s) - fish meal , bran , ingredient , biology , scylla paramamosain , soybean meal , meal , food science , dry matter , zoology , fish <actinopterygii> , fishery , biochemistry , ecology , raw material , gene
The present study was conducted to explore the potential to incorporate local plant‐based feed ingredients into diets formulated for the mud crab species, Scylla paramamosain , commonly exploited for aquaculture in South‐east Asia. Four test ingredients (defatted soybean meal, rice bran, cassava meal and corn flour) were incorporated at 30% or 45% inclusion levels in a fishmeal‐based reference diet and used in digestibility trials where apparent digestibility coefficients (ADCs) for experimental diets and test ingredients were determined. Generally, high ADC values were obtained using diets containing 30% soybean meal or rice bran. By contrast, the lowest ADC values were obtained for the diet containing 45% cassava meal [70.9% for dry matter (ADMD); 77.1% for crude protein (ACPD) and 80.2% for gross energy (AGED)]. Similar trends were observed when ADC ingredient (I) digestibilities were compared. Specifically, the highest ADCI values were obtained for soybean meal when used at a 30% inclusion level (87.6% ADMDI; 98.4% ACPDI and 95.6% AGEDI) while the lowest ADCI values were obtained using cassava meal at a 45% inclusion level (53.8% ADMDI; 60.2% ACPDI and 67.3% AGEDI). Based on the current findings, we propose that soybean meal and rice bran could be considered for incorporation into formulated diets for S. paramamosain .