EFFECT OF METHYL TESTOSTERONE (17α-MT) ON THE PHENOTYPE, BIOINDICES AND GONADS OF ADULT MALE DWARF GOURAMI (COLISA LALIA)

Anupa Biswas; Samarendra Behera; Priyanka Das; Dharmendra Meena; Bijay Kumar Behera

doi:10.9755/ejfa.v26i5.16365

Authors

Anupa Biswas West Bengal University of Animal and Fishery Sciences, Kshudiran Bose Sarani, Kolkata 700 037, India
Samarendra Behera West Bengal University of Animal and Fishery Sciences, Kshudiran Bose Sarani, Kolkata 700 037, India
Priyanka Das Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700 120, India
Dharmendra Meena Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700 120, India
Bijay Kumar Behera Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700 120, India

DOI:

https://doi.org/10.9755/ejfa.v26i5.16365

Keywords:

Colisa lalia, 17?- methyl-testosterone, Ornamental fish, Synthetic androgen

Abstract

The effect of different concentrations of synthetic androgen 17?- methyl-testosterone (MT) on the adult fish, Colisa lalia was studied in the present investigation. It was found that fishes fed with homogenous mixture of the hormone in ethyl alcohol, exhibited phenotypically, morphometric, gonadal changes and differences in GSI value. Significant differences for length, weight, body color and GSI values were observed between hormones treated and control groups. Fishes fed with hormonal doses of 10 and 15 mg/Kg feed showed significantly elevated body color compared to 5 mg/Kg feed. Length, weight and GSI values were found significantly higher in 10 mg than 5mg/Kg and control group. The highest mean length and mean weight of fish was recorded as 4.76±0.13 mm and 1.50±0.15g respectively with the hormone treatment of 10mg/Kg of feed. The present study revealed that the synthetic hormone had no significant effect on the gonad development of C. lalia.