Supplementation of four non-conventional aquatic weeds to the basal diet of Catla catla and Cirrhinus mrigala fingerlings: Effect on growth, protein utilization and body composition of fish
2008
Kalita P. | Mukhopadhyay, P.K. | Mukherjee, A.K.,Tezpur University, Napaam-784028 (India). Dept of Molecular Biology and Biotechnology
Our previous study has shown that four aquatic weeds viz. Asian watermoss, Salvinia cucullata, water spinach Ipomoea reptans, water chestnut, Trapa natans, and lesser duckweed, Lemna minor from north-east India are important sources of proteins, vitamins and minerals, suitable for incorporation in fish diet. The aim of the present study was to compare the efficacy of these aquatic weeds based formulated diets on growth, feed utilization and nutrient turnover from feed to fish flesh of fingerlings of two species of Indian major carps: catla, Catla catla (Hamilton, 1822), and mrigal, Cirrhinus mrigala (Bloch, 1795). The fingerlings were hand-sorted and distributed in 15 glass aquaria (each having 50 l capacity) at a stocking density of 5 fishes per aquarium. Five formulated diets (containing 26-28 percent of crude protein approximately) were prepared and analysed for proximate composition. Presently reported study suggests that I. reptans, being a rich source of nutrients, is suitable for incorporation in fish diet for C. catla and C. mrigala fingerlings
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