Protein diet sources on the growth and survival rate of blue swimming crab (Portunus pelagicus) cultured in fattening cages
Paper Details
Protein diet sources on the growth and survival rate of blue swimming crab (Portunus pelagicus) cultured in fattening cages
Abstract
Blue Swimming Crab (Portunus pelagicus) is a highly nutritious food and an important commercial species of crabs. This study aimed to determine the growth and survival rate of Blue Swimming Crab fed with different treatments. The researchers used experimental method of research to determine the growth and survival rate of blue swimming crab cultured in fattening cages. The experiment was lain out in Randomized Complete Block Design (RCBD) using four treatments namely: T0-Commercial Feeds, T1-Low Valued Fish (Indian Sardine), T2-Ragworm, and T3-50% low valued fish + 50% ragworm. Kruskal Wallis Test was used to test the significant difference among the four treatments. Results showed that among all the treatments, T1 got the highest growth increment in terms of weight and width with 22.79 g and 16.1 cm respectively and obtained the highest specific growth rate with 75.97 % day-1. In terms of length, T3 got the highest growth increment with 13.58 cm. Moreover, all treatments got 100% survival rate. Results revealed that there was a significant difference on the growth in terms of weight, length, and width on the four treatments but not significantly different in terms of survival rate. It can be concluded that use of ragworm alone or combination of low valued fish such as Indian sardines and ragworm can be a potential feed for it exhibits best growth in culturing blue swimming crab.
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