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Effect of linear and non-linear estimation of fish mortality on feed Conversion rate and economic profitability of oreochromis shiranus in cages

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dc.contributor.author Phiri, Francis
dc.contributor.author Singini, Wales
dc.contributor.author Kapute, Fanuel
dc.contributor.author Jere, Bob
dc.date.accessioned 2021-07-09T13:20:03Z
dc.date.available 2021-07-09T13:20:03Z
dc.date.issued 2018-08-24
dc.identifier.citation Phiri,F. et al (2018). Effect of linear and non-linear estimation of fish mortality on feed Conversion rate and economic profitability of oreochromis shiranus in cages. Annual Reviews and Research, 3(2). https://juniperpublishers.com/arr/pdf/ARR.MS.ID.555606.pdf en_US
dc.identifier.uri https://juniperpublishers.com/arr/pdf/ARR.MS.ID.555606.pdf
dc.identifier.uri 192.168.2.8:8080/xmlui/handle/123456789/176
dc.description.abstract This study was conducted to investigate the effect of linear and non-linear methods of estimating fish mortality on feed conversion ratio (FCR) and profitability of cage cultured Oreochromis shiranus (Makumba). Two treatments were used, designated as T1 and T2 and were replicated three times. In each cage, 105000 fish were stocked at an initial average body weight of 1.59±0.04g and cultured for 365 days. The fish was fed twice a day with formulated feed (36% Crude Protein) at 4-1% body weight with feed adjustments based on standing biomass from linear and non-linear estimated mortality. The results showed that there were significant differences between the two treatments on FCR . Final mean weight was 179.41±7.71g and feed conversion ratio was 1.64±0.15 for T1 and 177.56±8.27g and 1.54±0.14 respectively for T2Profitability of the two treatments was calculated by enterprise budgeting. There were significant effects on gross margin between the two treatments Gross margin values were K302,523,924.30 for T and K356,065,320.29 for T2 The study concludes that use of non-linear method of estimating fish mortality affect feed conversion ratio and economic profitability of Oreochromis shiranus cultured in cages. It is therefore recommended to use non-linear method of estimating fish mortality if farmers are to reduce FCR and maximize profits from the cage culture of Oreochromis shiranus as feed wastage due to feed overestimation resulting from miscalculation of mortality, can be minimized by 15.77%. en_US
dc.language.iso en en_US
dc.publisher Juniper Publisher en_US
dc.title Effect of linear and non-linear estimation of fish mortality on feed Conversion rate and economic profitability of oreochromis shiranus in cages en_US
dc.type Article en_US


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