OBSERVATIONS OF THE EFFECTS OF 17α-METHYLTESTOSTERONE (MT) ON THE GONADS, TESTES OF Clarias gariepinus BROODSTOCKS AFTER HORMONE-TREATED FEEDING TRIAL by Robert, E.A., Scientific Research Journal (Scirj), Volume IX, Issue X, October 2021 Edition

Scirj Volume IX, Issue X, October 2021 Edition
ISSN: 2201-2796

OBSERVATIONS OF THE EFFECTS OF 17α-METHYLTESTOSTERONE (MT) ON THE GONADS, TESTES OF Clarias gariepinus BROODSTOCKS AFTER HORMONE-TREATED FEEDING TRIAL

Robert, E.A.

Abstract: Seven hundred and sixty-five Clarias gariepinus fry were stocked in nine concrete tanks. Stocking density was eighty-five fry per 2 X 2 X 1 metre square tank. Experiment duration for hormone usage was three hundred and sixty-six (366) days. Feeding with the hormone stopped at 366 days and normal feeding without the use of the hormone picked up for another 365 days before findings were carried out. Fry were fed 0.2mm coppens feed mixed with 17α-Methyltestosterone (MT) at 10% of the fish’ body weight from start of the experiment till 6 months and then fed 5% of the fish’ body weight from six months to twelve months. Mean initial weight ranged from 0.049g to 0.06g. Mean final weights ranged from 6.4g to 8.5g. Weights of the gonads ranged from 31.5g to 117.8g for the C50 treatment. Weights of the testes however, ranged from 0.8g to 11.5g also for the C50 treatment. Weights of the gonads for the C100 treatment ranged from 87.2g to 244.4g, while weights of the testes for the C100 treatment were from 3.9g to 18.6g. There were three treatments: C50, C100, C0. Treatments were in triplicates.

Reference this Paper: OBSERVATIONS OF THE EFFECTS OF 17α-METHYLTESTOSTERONE (MT) ON THE GONADS, TESTES OF Clarias gariepinus BROODSTOCKS AFTER HORMONE-TREATED FEEDING TRIAL by Robert, E.A. published at: "Scientific Research Journal (Scirj), Volume IX, Issue X, October 2021 Edition, Page 51-59 ".

Search Terms: Clarias gariepinus, fry, 17α-Methyltestosterone (MT), sex-reversal, gonads, testes

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