Polyculture of carps using over-wintered fingerlings under different stocking densities
An on-farm trial was undertaken in twelve earthen ponds (1200-1600 m') to evaluate thegrowth and production of over-wintered fingerlings of rohu (Labeo rohita), catla (Carlacatla) and mrigal (Cirrhinus rnrigala) in polyculture at three stocking densities. Thestocking densities were 2,250; 3,250 and 4,250 fish/ha in treatment-1, treatment-2 andtreatment-3, respectively. Fish in all ponds were fed with rice bran and mustard oil cakeat the ratio of 3:1. Fish production obtained in three treatments were 2325±74.75,2620±49.66 and 2982±171.52 kg/ha. The results demonstrated higher mean growth inT-1 than in T-2 and T-3. However, the highest production as well as net benefit wasobtained in treatment-3.
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| Main Authors: | , , , |
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| Format: | article biblioteca |
| Language: | English |
| Published: |
2002
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| Subjects: | Aquaculture, Fisheries, Polyculture, carps, |
| Online Access: | http://hdl.handle.net/1834/33285 |
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