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#1 |
NAC 092
![]() Join Date: Sep 2002
Location: Where Angels & Demons Meet
Posts: 1,439
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![]() Found this article interesting. How true is it? Perhaps some of u guys have other alternative other than this?
Source taken from: http://jacksnyder00.tripod.com/theasianarowana/id6.html -------------------------------------------------------------------------- Arowana Gender Index (AGI) All info and pictures taken from Qianhu.com Asian Arowana (Scleropages formosus) breeding in the region is normally restricted to earthen ponds. One of the limiting factors in increasing production is the inability to determine the sex of the brooders. Determining the sex of the arowana is important in determining the sex ratio of the brooders to maximize breeding. In a collaboration R&D effort between Qian Hu and Mr Alex Chang of Ngee Ann Polytechnic, a novel approach of sex determination of the brooders using the Arowana Gender Index (AGI) was developed. Now commercial ornamental fish breeders can use this information to better determine the model ratio of the two genders to achieve the highest number of juvenile Arowana. This method offers a cheaper, simpler and efficient alternative to the traditional expensive DNA studies. The method uses the differences in the relationship among the linear measures of the male and female adult asian arowana. The method yields high percentage accuracy (70%) and the index will greatly enhance the productivity of arowana breeders. This index can be used on Arowana fishes that are one year old and above. As the index uses data from healthy and non-deformed fishes, the accuracy of the index is only applicable to normal, healthy fish. ![]() ![]() The result for male will be 111 or higher and thus for female shall be below 111. |
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#2 |
NAC 029
![]() ![]() Join Date: Sep 2004
Location: KGP
Posts: 4,230
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![]() i've read the article ... and yes it helps alot in determining the gender but only for grown aros ....
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#3 |
NAC 092
![]() Join Date: Sep 2002
Location: Where Angels & Demons Meet
Posts: 1,439
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![]() to think about it...its another reason why Asian Aro carry a high $$ tag.
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#4 | |
NAC 029
![]() ![]() Join Date: Sep 2004
Location: KGP
Posts: 4,230
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#5 |
NAC 131
![]() ![]() ![]() Join Date: Jul 2006
Location: Bekasi
Posts: 907
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![]() thanks Mr Hengky
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#6 | |
Member
Join Date: Oct 2006
Location: SINGAPORE
Posts: 17
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