Abstract

Effect of sewage cultured Lemna minor on growth of Mollinesia latipinna was investigated using three different types of feeds viz.control feed (F1), raw lemna incorporated feed (F2) ,and decomposed lemna incorporated feed (F 3 ) for 20 days. The feeds were prepared by using sewage cultured L.minor .The test animals fed with decomposed lemna incorporated feed showed high production (0.205) ,Gross growth efficiency (11.08 %), Net growth efficiency (11.39 %) ,Assimilation efficiency (97.31)and Metabolism (1.61). Raw L.minor incorporated fish feed showed slightly low value of Metabolism (1.58), Assimilation (1.75) and relative growth efficiency.

Highlights

  • Fish, orange molly M. latipinna is one of the most attractive and economically important among the aquarium fishes

  • From the results of the feed trial experiments conducted, it became conspicuous that minimum energy loss for maintenance and metabolism occurred in test animals fed with experimental diets coupled with high assimilation efficiency (97.31)

  • Students 't' test analysis, conducted on different growth parameters of the test animals fed with three different diets showed the following results

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Summary

Introduction

Orange molly M. latipinna is one of the most attractive and economically important among the aquarium fishes. They are marketed all over the world and yield foreign exchange to some extent. Edward (1980 ) stated that there are number of herbivorous fishes which directly consume aquatic weeds. Aquatic macrophytes have been known to have potential value as human food , live stock fodder, fertilizers and food for herbivorous fishes ( Edward, 1980 ). The growth performance, food conversion ratio and protein efficiency ratio along with nutritional qualities of weeds that are incorporated in pelleted feeds in fish have been reported by Tan (1970), Hajra and Tripathi (1985), Hajra (1987), Patra and Ray (1988) and Das et al, (1989)

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