Breeding performance of Pterophyllum scalare (Angelfish) fed with enriched Daphnia magna

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dc.contributor.authorMohamed Rashath, M.R.
dc.contributor.authorCoswatte, A.C.W.W.M.C.L.K.
dc.contributor.authorWithanage, P.M.
dc.contributor.authorLiyanage, N.P.P.
dc.date.accessioned2019-07-05T05:57:06Z
dc.date.available2019-07-05T05:57:06Z
dc.date.issued2018
dc.description.abstractOrnamental fish industry is a popular and profitable trade in the world. The production cost of ornamental fish varies with the cost of fish feed. The objective of the study was to investigate the breeding performance of Pterophyllum scalare fed with enriched Daphnia magna. The live feed of Daphnia magna was enriched with culture media, contained 58% crude protein and artificial feed with 40% crude protein were used to feed Pterophyllum scalare brooders (body weight l0g - 27g) as treatment I and II respectively. Square cement tanks with a size of 0.45 x 0.45 m2 were used for each treatment with 4 replicates for 80 days experimental period. Average Temperature, pH, Dissolved Oxygen, and Alkalinity in the two treatments were maintained at 28 °C, 7.4, 6.9 ppm and 560 mg 1-1 respectively. Although the brooders spawned in both treatments, the relative fecundity was not significantly different (P>0.05). Other breeding performances such as fertilization rate, spawn recovery and spawning period have shown significant differences (P<0.05) between Treatment-1 and Treatment-11. Comparatively highest fertilization rate (93.19%) and survival rate (70.87%) were observed in the Treatment-1, whereas lowest (fertilization rate: 67.31%) (survival rate: 50.55%) in Treatment-11. Most of the eggs in the Treatment-11 remained immature. Highest breeding performance was resulted with enriched Daphnia magna when compared to artificial feed in Pterophyllum scalare. The results revealed that the nutritional quality of the live feed considerably influenced on the breeding performance of Pterophyllum scalare.en_US
dc.identifier.isbn9789550481194
dc.identifier.urihttp://erepo.lib.uwu.ac.lk/bitstream/handle/123456789/1402/75-2018-Breeding%20performance%20of%20Pterophyllum%20scalare%20%28Angelfish%29%20fed%20with.pdf?sequence=1&isAllowed=y
dc.language.isoenen_US
dc.publisherUva Wellassa University of Sri Lankaen_US
dc.subjectAgricultureen_US
dc.subjectAquaculture and Fisheriesen_US
dc.titleBreeding performance of Pterophyllum scalare (Angelfish) fed with enriched Daphnia magnaen_US
dc.title.alternativeInternational Research Conference 2018en_US
dc.typeOtheren_US
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International Research Symposium of UWU-2018