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Short communication:The effect of gokshura (Tribulus terrestris) and nettle root (Urtica dioica) extracts on growth rate and sex reversal in convict cichlid (Cichlasoma nigrofasciatum)
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P. Babahajiani1   , B. Shokrollahi *2 , M. Gharibkhani3 |
1- Department of Animal and Aquatic Sciences, Agriculture School, Sanandaj Branch, Islamic Azad University, Sanandaj, Kurdistan, Iran
2- Department of Animal and Aquatic Sciences, Agriculture School, Sanandaj Branch, Islamic Azad University, Sanandaj, Kurdistan, Iran , Borhansh@gmail.com
3- Department of Fisheries, Astara Branch, Islamic Azad University, Astara, Iran. |
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Abstract: (4330 Views) |
| There are many differences between sex of fishes in many traits before and after puberty. Differences in growth rate, size, behavior patterns, and breeding time between males and females have great economic importance (Turan and Cek, 2007). Therefore, many breeders prefer to delay or prevent puberty or to produce unisex populations. Exogenous steroids can be effective in sex reversal of fishes (Al-ablani and Phelps, 2002). Two hormones, estradiol-17β (female-specific hormone) and 17α-methyltestosterone (male-specific hormone) are the most commonly used hormones for sex reversal (Stepherd and Bromage, 1995). |
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| Keywords: Gokshura, Nettle root, Sex reversal, Growth rate, Convict cichlid |
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Full-Text [PDF 328 kb]
(3916 Downloads)
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Type of Study: Orginal research papers |
Subject:
Biology & physiology
ePublished: 2018/07/2
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