Effects of a saponin fraction extracted from Trigonella foenum-graecum L. and two commercially available saponins on sex ratio and gonad histology of Nile tilapa fry, Oreochromis niloticus (L.)

Over three millon tonns (t) of tilapia, mostly Nile tilapia(Oreochromis niloticus) are produced annually making it the second most abundantly produced freshwater fish. Tilapia are mouthbreeders that often produce stunted populations under pond conditions; one means of prevention is to produce all-ma...

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Published inJournal of applied ichthyology Vol. 29; no. 1; pp. 265 - 267
Main Authors Stadtlander, T., Levavi-Sivan, B., Kerem, Z., Dweik, H., Qutob, M., Abu-Lafi, S., Francis, G., Focken, U., Becker, K.
Format Journal Article
LanguageEnglish
Published Berlin Blackwell Publishing Ltd 01.02.2013
Wiley Subscription Services, Inc
Subjects
Freshwater
Oreochromis niloticus
Trigonella foenum-graecum
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Summary:Over three millon tonns (t) of tilapia, mostly Nile tilapia(Oreochromis niloticus) are produced annually making it the second most abundantly produced freshwater fish. Tilapia are mouthbreeders that often produce stunted populations under pond conditions; one means of prevention is to produce all-male fish with the additional adventage that males usually grow faster than females. All-male populations con be achieved by supplementing feed with androgens during days 10-25 posthatch.
Bibliography:ark:/67375/WNG-GK6297NM-P
ArticleID:JAI12002
istex:5A2DCE79A8435C35ED9363D0BB7FE7FEB4AFDC6F
DFG (German Research Foundation) - No. 1133/19-
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0175-8659
1439-0426
DOI:10.1111/jai.12002