Effects of Ovaprim, Pituitary Gland Extract and Human Chorionic Gonadotropin on Testosterone, 11-Ketotestosterone,and 17β-Estradiol hormones of catfish (Clarias gariepinus)
Zaki, E., Abd El-Ghaffar, H. (2020). Effects of Ovaprim, Pituitary Gland Extract and Human Chorionic Gonadotropin on Testosterone, 11-Ketotestosterone,and 17β-Estradiol hormones of catfish (Clarias gariepinus). EKB Journal Management System, 10(4), 1-16. doi: 10.21608/eja.2020.52848.1043
Eman Mahmoud Zaki; Haytham Ahmed Abd El-Ghaffar. "Effects of Ovaprim, Pituitary Gland Extract and Human Chorionic Gonadotropin on Testosterone, 11-Ketotestosterone,and 17β-Estradiol hormones of catfish (Clarias gariepinus)". EKB Journal Management System, 10, 4, 2020, 1-16. doi: 10.21608/eja.2020.52848.1043
Zaki, E., Abd El-Ghaffar, H. (2020). 'Effects of Ovaprim, Pituitary Gland Extract and Human Chorionic Gonadotropin on Testosterone, 11-Ketotestosterone,and 17β-Estradiol hormones of catfish (Clarias gariepinus)', EKB Journal Management System, 10(4), pp. 1-16. doi: 10.21608/eja.2020.52848.1043
Zaki, E., Abd El-Ghaffar, H. Effects of Ovaprim, Pituitary Gland Extract and Human Chorionic Gonadotropin on Testosterone, 11-Ketotestosterone,and 17β-Estradiol hormones of catfish (Clarias gariepinus). EKB Journal Management System, 2020; 10(4): 1-16. doi: 10.21608/eja.2020.52848.1043

Effects of Ovaprim, Pituitary Gland Extract and Human Chorionic Gonadotropin on Testosterone, 11-Ketotestosterone,and 17β-Estradiol hormones of catfish (Clarias gariepinus)

Egyptian Journal for Aquaculture
Article 3, Volume 10, Issue 4, December 2020, Page 1-16  XML PDF (428.76 K)
Document Type: Original Article
DOI: 10.21608/eja.2020.52848.1043
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Authors
Eman Mahmoud Zaki1; Haytham Ahmed Abd El-Ghaffar email 2
1hatchery and fish physiology department, central laboratory for aquaculture research, agriculture research centre, Egypt.
2Hatchery and fish physiology department, central laboratory for aquaculture research, agriculture research centre
Abstract
This study closely inspected the effects of ovaprim, pituitary gland extract, and human chorionic gonadotropin on 11-ketotestosterone, and 17β-estradiol hormones. Females and males (T1, T2, and T3) were injected with Ova Prim as 0.5 ml/kg of fish, pituitary gland extract of catfish, and Human Chorionic Gonadotropin (HCG), respectively. Results showed that female gonadosomatic index of the spring season (10.45 ±0.35%) were significantly increased compared to other seasons: autumn followed by summer and winter seasons (0.82 ±0.06%). Results showed that T1 was better than T2, but T2 was better than T3 in all reproductive performance parameters. Plasma 17β-estradiol (ng/ml) in female catfish throughout 12 hours after injection of stimulating hormones ranged from 2.15 ng/ml in T1 to 1.65 ng/ml in T3 whereas testosterone in female of catfish throughout 12 hours were ranged from (0.031 ng/ml) in T1 to (0.036 ng/ml) in T3. Also, plasma 11-ketotestosterone (ng/ml) in male of catfish was recorded in T1 (0.154 ng/ml) followed by T2 (0.107 ng/ml) and lowest level in T3 (0.083 ng/ml) but plasma testosterone (ng/ml) in male was recorded in T1 (0.225 ng/ml) followed by T2 (0.189 ng/ml) and lowest level in T3 (0.143 ng/ml).
Keywords
Clarias gariepinus; Ovaprim; 17β-estradiol
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