Input-output relations in fish production under various pond size, ownership pattern and constraints
1990
Mollah, A.R. | Chowdhury, S.N.I. | Habib, M.A.B.
A sample of 62 fish ponds from small, medium and large size groups producing five species of fishes under both single and multiple ownership in Jangalla, Comilla, was selected for the present study. Under both types of ownership, the quantities of inputs used in small ponds were higher than that of medium ponds followed by large ponds. But the large ponds gave higher production than the medium ponds followed by small ponds which was just reverse when the production was considered per hectare. Again, ponds under single ownership gave higher production of fishes than the prods under multiple ownership. Production of fishes in three different size groups of ponds differed significantly at 5% level of probability while the production of live species of fishes was significantly (P0.01) different. The combined effect of 10 growth influencing factors was significant on the production of Catla catla and Cirrhina mrigala but the combined effect did not play significant (P0.05) role on the production of Labeo rohita, Hypo-phthalmichthys molitrix and Cyprinus carpio might be due to dominance of catla catla and Cirrhina mrigala on others during feeding. The socioeconomic constraints were identified as major
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