Working Document Series Open Access 2012 RUF-32827

Combined Effect of Selected Technologies on Growth, Survival and Water quality of Improved Strain of Oreochromis Shiranus in Earthen Ponds of Dowa District, Malawi

L. JereJ. Kang’ombeE.W. KaundaP.M. LongweD. SikawaH. Zidana

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Abstract

124 words

The study to evaluate the combined effect of feed, feeding trays and clear plastic pond sheeting technique on the growth, survival and water quality of the improved strain of Oreochromis shiranus was conducted in Dowa District, Malawi, from February to June 2012. The experiment was a factorial conducted in a Complete Randomised Design. Three treatments (feed, feeding trays and clear plastic pond sheeting) were tested and data on fish weights collected at 21 day intervals for the 4 month period. Yields, FCR and survival rate were calculated at the end of the research period. Results from the study suggest that the treatment which had all the three technologies had the highest weight gain and survival rate of above 98% at 95 % confidence level.

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