Effects of feeding single ingredient supplemental feed on growth feed utilization, plankton abundance and survival of Tilapia Rendalli, Boulenger, in ponds
2007
J. Kang’ombe | J.A. Brown
A number of Malawian fish farmers apply manure and supplements to their fish, but it is rare to use combinations as procurement of these inputs may be difficult from off farm sources. Supplemental feeds are intended to support the natural food available in the ponds that might limit the growth of the fish.The objectives of the study were:<br /> to develop a basic understanding of nutrient dynamics, especially, the role of fertilisation, feeding and natural productivity to increase the production of fish in semi-intensive systems to compare the use of three different single ingredients in fertilised ponds, with the aim of evaluating the effect to applying a single ingredient.The authors conclude that:<br /> there are many locally available ingredients that are not well utilised in pond aquaculture supplementation had a significant influence on the growth of fish fertilized ponds fish fed soybean meal grew faster than those fed maize bran, rice bran supplements and chicken manure pond fertilization alone maize bran was also found to produce better growth rates than rice bran when fed to O. shiranus in monoculture.<br /><br />
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