Different organic manures vermicompost @ 15000, vermicompost @ 10000, cow dung @ 10000, poultry manure @ 6000, pig manure @ 4000 kg/ha/yr and control used to monitored their effect on growth performance of Catla catla, Labeo rohita and Cirrhinus mrigala. The results revealed that all the three species gained maximum length in vermicompost @ 10,000 kg/ha/yr followed by vermicompost @ 15,000 kg/ha/yr, cow dung @ 10,000 kg/ha/yr, poultry manure @ 6,000 kg/ha/yr, pig manure @ 4,000 kg/ha/yr and control. Among the 3 species C. mrigala showed maximum increase in body length which was 33.4 cm followed by L. rohita and C. catla was 32.1, 31.3 cm in vermicompost @ 10,000 kg/ha/yr treatment. The minimum length of C. mrigala, L. rohita, C. catla observed in pond treated control. But in case of C. mrigala, the result revealed that the maximum increase in body length in vermicompost > poultry manure > cow dung > pig manure and control, respectively. All the three species gained maximum growth in vermicompost. Among the 3 species L. rohita showed maximum growth followed by C. catla and C. mrigala. There was two times more growth of Indian major carps in pond treated with vermicompost @ 10,000 kg/ha/yr as compared to control.
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