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Scirj Volume VII, Issue VIII, August 2019 Edition
ISSN: 2201-2796

EFFECT OF 17-𝛼-METHYL TESTOSTERONE (MT) ON ALL-MALE SEX REVERSAL AND DETERMINATION, GROWTH AND SURVIVAL OF Clarias gariepinus JUVENILES IN CONCRETE STAGNANT SYSTEMS

Robert, E.A.; Ovie, S.O.; Onyeche, V.O.

Abstract: Sex determination, growth performance and survival of Clarias gariepinus juveniles were examined as they responded to 17- 𝛼-methyl testosterone (MT) and absolute ethanol mixed in their feed. Varying levels of 50 mgKg-1 /MT, 100 mgKg-1 /MT and 0 mgKg-1 /MT were used. These inclusion levels further served as treatments TCG 50, TCG 100, TCG 0. A total of 270 Clarias gariepinus juveniles were stocked in six (6) concrete stagnant systems of 2metre by 2metre square. Treatments were duplicated and TCG 0 served as the control. Duration was for One hundred and twenty one (121) days. The mean initial weights were taken as 0.05±0.00a g for treatment TCG 0, 0.06±0.01a g for treatment TCG 50 and 0.05±0.00a g for treatment TC 100. Highest mean weight gain of 2.40±0.21b g observed in the study was seen in the Clarias gariepinus juvenile tank TCG 50. Performance index showed treatment TCG 50 performed highest with value 116.02±0.00a. Survival rate was highest in treatment TCG 0 with 92.22±1.57a %, higher in treatment TCG 100 with 83.33±7.86a % and high in treatment TCG 50 with 81.11±1.57a %. Condition factor K was greater than 1 throughout the study showing well-being of the fishes; highest in treatment TCG 50 at value 6.67. Water quality parameters were at normal ranges throughout the study.

Reference this Paper: EFFECT OF 17-𝛼-METHYL TESTOSTERONE (MT) ON ALL-MALE SEX REVERSAL AND DETERMINATION, GROWTH AND SURVIVAL OF Clarias gariepinus JUVENILES IN CONCRETE STAGNANT SYSTEMS by Robert, E.A.; Ovie, S.O.; Onyeche, V.O. published at: "Scientific Research Journal (Scirj), Volume VII, Issue VIII, August 2019 Edition, Page 105-118 ".

Search Terms: sex reversal, sex determination, growth, survival, duplicates, Clarias gariepinus, juveniles, stagnant

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