Abstract
The purpose of this paper is to create awareness on the significance of integrated fish farming in organic waste reclamation, recycling and re-use. Example of integrated fish farming practiced at a micro-level in the Niger Delta of Nigeria is crop-snailry-poultry (Chicken) – livestock (pig) – cum-fish production. In this system, fish production remains the most important activity. The organic wastes reclaimed, recycled and re-used in this system are: plant matter, chicken and pig excrements; snail, oyster and periwinkle shells, ox blood and bone, fish wastes, palm kernel cake, groundnut cake, pond silt and aquatic fern, Azolla pinnata . Other reclaimable, recyclable and re-usable materials are also discussed in this paper. Integrating organic waste reclamation, recycling and re-use in integrated fish farming with treatment, incineration, landfill and composting will help to drastically reduce waste in both rural and urban areas. Journal of Applied Sciences and Environmental Management Vol. 10 (3) 2006: 47-53
Highlights
Waste reclamation implies recovery of a component of waste for use in a manner different from its initial function, re-use denotes multiple use of a given material or product; and recycling consists of recovering from waste the matter of which a product was made and re-introducing it into the production cycle for reproduction of the same item (Ademoroti, 1996)
Commercial pig/chicken/duck production activity has been accompanied by fish and crop production, mainly by using the animal waste as fish feed and manure for crops respectively (Mukherjee, 1995)
There is likely to be a significant increase in agricultural wastes globally if developing countries continue to intensify farming systems (UNEP, 1992)
Summary
Lay-out of integrated fish farming practiced at microlevel in the Niger Delta In the Niger Delta of Nigeria, it has been observed that micro-level practice of integrated fish farming exists with crop-snailrypoultry (chicken) – livestock (pig) – cum – fish production system. In this system, fish production remains the most important activity. The plant matter is used as feed for the snails; while excrements/ waste from the snails, chicken and pigs are used as manure for crops such as pumpkin and waterleaf.
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