Apparent digestibility of some nutrient sources by juvenile mud crab, Scylla serrata (Forskal 1775) |
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| Authors: | Vu-anh Tuan,Alex Anderson,Jim Luong-van,Colin Shelley,& Geoff Allan |
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| Affiliation: | School of Primary Industries and Sciences, Charles Darwin University, Darwin, NT, Australia; School of Life Sciences, Queensland University of Technology, Brisbane, Qld, Australia; Darwin Aquaculture Centre, Fisheries Group, Department of Business Industry and Resource Development, Darwin, NT, Australia; New South Wales Fisheries, Port Stephens Fisheries Centre, Nelson Bay, Australia |
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| Abstract: | As part of preliminary work aimed at the development of a formulated diet for the mud crab, Scylla serrata, an experiment was conducted with juvenile mud crabs (95.65±2.17 g) to determine apparent digestibility coefficients (ADC) for cellulose, fish meal, shrimp meal, blood meal, soybean meal, wheat flour and cod liver oil. Apparent digestibility coefficients for dry matter (ADCdm), energy (ADCenergy) and protein (ADCprotein) were in the ranges 70.0–95.7%, 77.4–97.1% and 57.7–97.9% respectively. Soybean meal had the highest ADCdm and wheat flour had the lowest value (P<0.05), while the ADCdm for fish meal, blood meal and shrimp meal were not different (P≥0.05). Similarly, soybean meal had the same ADCenergy as that of fish meal, but higher than those of cod liver oil, blood meal and shrimp meal (P<0.05). Moreover, the ADCprotein for blood meal or shrimp meal were not significantly different from fish meal (P≥0.05); nevertheless, they were lower than that of soybean meal and higher than that of wheat flour (P<0.05). Of significant interest was the ADCdm (78.0%) and ADCenergy (77.4%) for cellulose, which indicates that plant‐based nutrient sources may well be a useful component of formulated diets for mud crabs. |
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| Keywords: | cellulose crablets Scylla serrata energy protein apparent digestibility coefficients (ADC) |
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