Vol. 17 No. 3
Protein and lipid digestibility co-efficient of different formulated aquatic weed based feeds for Osteobrama belangeri (Val.)
Author(s): CH. BASUDHA, N.G. SINGH AND KH. R. SINGH
Abstract: A successful feed formulation for aquaculture is based on its acceptability, good digestibility of nutrients and derivation of energy from the food by the fish to meet the optimum requirement. The present study deals with the digestibility of formulated feeds based on aquatic weeds viz, Alternanthera, Azolla, Hydrilla, Lemna and Salvinia which were used as sole protein sources in pelleted diets for Osteobrama belangeri by indirect method of estimation. Diet based on fish meal was used as check diet. Chromium oxide (Cr2O3) was used as indicator. The apparent protein digestibility (APD) and true protein digestibility (TPD) coefficient were highest in fish meal-based diet(91.27 and 99.59) and significantly different at P<0.05 followed by Lemna based diet (86.76 and 98.44). Lowest value of APD was found in Salvinia based diet (80.73). There was no significant difference (P<0.05) in the values of apparent lipid digestibility (ALD) co-efficient.
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