Thermal and hormonal feminization of all male YY Nile tilapia, Oreochromis niloticus L.
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Tarih
2003
Yazarlar
Karayücel, I
Penman, D
Karayücel, S
McAndrew, B
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Israeli Journal Of Aquaculture-Bamidgeh
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Hormonal and thermal sex reversal of YY male Oreochromis niloticus were compared. While similar percentages of females (34% and 32%, respectively) were produced, a significantly higher percent of intersex individuals (18.5%) was produced in the heat (36 degreesC) treatment than in the group treated with diethylstilbestrol (DES; 1.6%). The heat-treated groups had 62.6% survival, compared to 97.0% and 97.3% in the control and DES-treated groups, respectively. Our results demonstrate that a high temperature treatment can be an alternative to hormonal sex-reversal treatments for YY male O. niloticus. Although the low survival and high occurrence of intersex individuals may limit its use, it can be used to produce large numbers of YY male broodstock in countries where hormone use is illegal and/or consumer reaction to hormonally-treated fish is negative.
Açıklama
Anahtar Kelimeler
diethylstilbestrol, hormonal sex-reversal, thermal sex-reversal, tilapia
Kaynak
Israeli Journal of Aquaculture-Bamidgeh
WoS Q Değeri
Q4
Scopus Q Değeri
Q4
Cilt
55
Sayı
2
