480
Aquaculture of Cyprinio‘s
either phosphatic or nitrogenous fertilizers and aquatic weeds or aquatic
weeds
alone, yields of the order of 2609—3462 Kg and 3200—3900 Kg/ha in 9
months and of
4500 Kg/ha/yr have been realised at remarkably low operational
costs
of Rs
1.13—Rs
1.77
(US $ 0.10—0.14), per Kilogram of fish, suggesting
that newly—developed, low—cost, labour—intensive, technologies can be recom—
mended for extensive adoption in rural areas, especially in the Third World
where
submerged aquatic vegetation such as Hydrilla is abundant.
Aquaculture of Cyprinio‘s
either phosphatic or nitrogenous fertilizers and aquatic weeds or aquatic
weeds
alone, yields of the order of 2609—3462 Kg and 3200—3900 Kg/ha in 9
months and of
4500 Kg/ha/yr have been realised at remarkably low operational
costs
of Rs
1.13—Rs
1.77
(US $ 0.10—0.14), per Kilogram of fish, suggesting
that newly—developed, low—cost, labour—intensive, technologies can be recom—
mended for extensive adoption in rural areas, especially in the Third World
where
submerged aquatic vegetation such as Hydrilla is abundant.