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African Journal of Biotechnology

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Nutritive potentials and utilization of garden snail (Limicolaria aurora) meat meal in the diet of Clarias gariepinus fingerlings

OA Sogbesan, AAA Ugwumba, CT Madu

Abstract


The possibility of using garden snail (Limicolaria aurora) meat meal as a protein source in fish feeds was tested in Clarias gariepinus fingerlings. Five isonitrogenous (43% crude protein) diets in which garden snail meat meal was used to replace fish meal at 0%, (control diet), 25, 50, 75 and 100% inclusion levels were used for the study. The fish were fed ad-libitum for 8 weeks. Garden snail meat meal used had a crude protein content of 66.76% and ash content of 4.10%, while crude protein and ash content of fishmeal used were 72.46% and 18.22% dry weight, respectively. The lipid content of garden snail meat meal and fishmeal; 7.85% and 7.97%, respectively, was not significantly different (p0.05). The mean weight gain, relative growth and specific growth rates were highest in fish fed 25% garden snail meat meal diet. The best food conversion ratio (1.21) and protein efficiency ratio (3.69) were also recorded in fish fed 25% garden snail meat meal diet. Visceral somatic indices (2.71-17.24%) increased significantly (p0.05) with increase in the garden snail meat meal inclusion in the diets.



AJOL African Journals Online