TY  - JOUR
T1  - Effects of Different Levels of 17 - Methyltestosterone on Growth and Survival of Angelfish (<I>Pterophyllum scalare</I> Liechtenstein, 1923) Fry
AU - , Smihan Karayucel AU - , A.K.Orhan AU - , Sedat Karayucel 
JO  - Journal of Animal and Veterinary Advances
VL  - 5
IS  - 3
SP  - 244
EP  - 248
PY  - 2006
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2006.244.248
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2006.244.248
KW  - Angelfish
KW  -Pterophyllum scalare
KW  -17-" methyltestosterone
KW  -growth
KW  -survival
KW  -anabolic effects
AB  - Angelfish (<I>Pterophyllum scalare</I>) fry were immersed in water containing 17-  Methyltestosterone (MT) at the doses of 10, 25, 50, 125, 250 µg L <SUP>1</SUP> water for 30 days.  The effects of MT on growth and survival were investigated at an interval of 10 days. Survival of all MT treated groups was significantly lower than control at 20 and 30 th day of the experiment period (p&lt;0.001). At the end of the experimental period, the mean length of fry which immersed in MT of 250 µg L <SUP>1</SUP>water were significantly higher than the control (p&lt;0.05). However, enhanced growth rate observed in the present study did not compensate the high mortality in practical usage. Anabolic effects of sex steroid on survival and growth of different fish species were also discussed.
ER  -