Effects of varying dietary levels of Carica papaya seed meal powder (PSM) on growth and histology of gonads in Oreochromis niloticus larvae

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dc.contributor.authorMagblenou, Louis Dossou
dc.contributor.authorLY, Mouhamadou Amadou
dc.contributor.authorKantoussan, Justin
dc.date.accessioned2023-04-22T10:52:24Z
dc.date.available2023-04-22T10:52:24Z
dc.date.issued2019-04
dc.description.en_US
dc.description.abstractSex control in tilapia should provide an invaluable benefit to aquaculture. The effects of different dietary levels of papaya carica seed meal powder on growth and gonad histology in Oreochromis niloticus larvae were studied to prevent early maturity and uncontrolled spawning. Four (4) dietary level of seed meal powder, varying from 0 g.Kg^-1 as a control; 1 g.Kg^-1 ; 2 g.Kg^-1 to 3 g.Kg^-1 were each tested in triplicate. The diet were is onitrogenous and were fed to twelve (12) experimental groups of 110 larvae weighing 0.019 g at a feeding rate of 4% body weight, three times a day for 30 days with the experimental diet and then after fed with the basal diet for other 60 days of the experiment. At the end of the experiment, 24 fish from all replicates were randomly sampled, slaughtered and dissected to remove testicles and ovaries. Testicular and ovarian samples were fixed in 10% buffered formalin for 24 h before the histological process. After 90 days of experiment, fish weight increased from 0.019 g ± 0.09 to 32.47g ± 0.02; 30.40g ± 0.05; 34.68 g ± 0.07 and 33.83 g ± 0.09 respectively for C. papaya dosage of 0; 1; 2 and 3, respectively. In fish treated with 0 and 1g. Kg^-1 of PSM, the testes showed different stages of spermatogenesis with germ cells moving up to the spermatozoa. Similarly, the ovaries showed follicles at different stages of folliculogenesis up to vitellogenesis. The main lesional changes observed concerned the testicles of fish fed with 2 and 3 g.Kg^-1q PSM with in particular the scarcity of germ cells and spermatozoa. For females, the only observations concern vitellogenesis which are important for treatment doses of 0 and 1 g.Kg^-1, while they decrease in the group treated with 3 g.Kg^-1.en_US
dc.description.sponsorshipWorld Bank ACE Impact Projecten_US
dc.identifier.citationhttps://dx.doi.org/10.4314/ijbcs.v13i2.4;10en_US
dc.identifier.issn1997-342X
dc.identifier.urihttps://datad.aau.org/handle/123456789/1506
dc.language.isoenen_US
dc.publisherThe International Journal of Biological and Chemical Sciences (IJBCS)en_US
dc.relation.ispartofserieshttps://dx.doi.org/10.4314/ijbcs.v13i2.4;10
dc.subjectPapaya seed meal powderen_US
dc.subjectPerformancesen_US
dc.subjectGonads histologyen_US
dc.subjectOreochromis niloticusen_US
dc.subjectFaye, Robaneen_US
dc.subjectKane, Yaghoubaen_US
dc.titleEffects of varying dietary levels of Carica papaya seed meal powder (PSM) on growth and histology of gonads in Oreochromis niloticus larvaeen_US
dc.typeArticleen_US
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