Masculinization of Tilapia (Oreochromis niloticus) Using Methyl Testosterone Natural Hormone

Rosmaidar R, Winaruddin W, Mimi Herlina

Abstract


This study aimed to determine the effect of methyl testosterone natural hormoneon the rate of masculinization of tilapia (Oreochromis
niloticus). The study used 270 tilapia larvae with the age of 7 days as experimental animals. Tilapia larvae were divided into 3 treatments; each
treatment consisted of 30 larvae fish. This study was an experimental study using completely randomized design with 3 treatments and 3
replications. Treatment I as control group was fed with pellets ad libitum, treatment II was given feed containing methyl testosterone natural
hormone, and treatment group III was given hormone treatment by soaking the fish larvae with methyl testosterone natural hormone for 20
hours. Larvae were raised in accordance with applicable procedures. Observation was conducted when the larvae fish were at 60 days old and
the sex of fish can be observed. Parameter examined was the percentage of the male sex. The average (± SD) percentage of male tilapia in group
PI, PII, and PIII were 36.39±3.97, 66.72±6.13, and 82.37±6.87%, respectively. The results showed that the percentage of male sex of tilapia fed
with natural hormone of methyl testosterone through the diet and dipping was significantly different (P<0.05) from control fish. In conclusion,
the administration of natural hormone of methyl testosterone increased the percentage of the male sex of tilapia).
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Key words: tilapia larvae, natural hormone methyl testosterone, the male sex percentage


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DOI: https://doi.org/10.21157/j.med.vet..v8i2.3347

DOI (PDF): https://doi.org/10.21157/j.med.vet..v8i2.3347.g3139

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This work is licensed under a Creative Commons Attribution 4.0 International License.

Creative Commons License
J. Med. Vet. is licensed under a Creative Commons Attribution 4.0 International License.