The effects of different levels of soybean meal replaced by fish meal on biochemical parameters heamolymph of freshwater crayfish (Astacus leptodactylus)

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Abstract

The present study examined the effects of different levels of plant protein (soybean meal)
on biochemical parameters heamolymph of freshwater crayfish (Astacus leptodactylus). For
this purpose, the effects of different levels of soybean meal protein including 0%, 30%, 50%,
70%, and 100% diet on some biochemical parameters and ion heamolymph of freshwater
crayfish were evaluated after 60 days of trial. Sampling of 75 samples crayfish with
apparently healthy heamolymph was carried out at the end of the testing period. Based on the
results, with increasing soybean meal in the diet, the amount of glucose, cholesterol,
triglyceride, creatinin and total protein had a significant decrease compared to the control
group. A significant difference was observed in the amount of serum enzymes activities
between control group and the other treatments. The amount of Bun, calcium, and sodium
were not significantly different between treatments. Also, the amount of K, Fe and P in the
diets containing soybean meal had a significant decrease compared with the control group.
*Corresponding author

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Iranian Scientific Fisheries Journal
Volume 22, Issue 1 - Serial Number 82
September and October 2013
Pages 175-184

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