Do shiromujis become jumbo?

[dechoong]

Quote: Originally Posted by John Bloch I havent heard much of ogons or benigoi, but I know that Chagoi are supposed to get huge, and up to 1m or more in length given the space...

There are quite a number of big ogons around, especially from Hiroshima Sakai (lately) and Izumiya (traditionally). As for Benigoi, from my limited experience those from Hiroshima Sakai do grow big... if I'm not mistaken their oyagoi is 1.1m

-Dennis

[lildude]

If your koi became shiromuji, the genetics would still play a big role on the final length of the fish.

[Russell Peters]

Quote: Originally Posted by lilhelper If your koi became shiromuji, the genetics would still play a big role on the final length of the fish.

That is correct.

[lildude]

Quote: Originally Posted by Russell Peters That is correct.

WOO HOOOO!!!!!!


So basically there is no set in stone average length of shiromuji?

[mrbradleybradley]

Hi

I was thinking of "true" shiromuji, rather than those that have loss beni. I was thinking of those that would normally be culled first or early, before they get a chance to reach 5cm. I did assume, that jumbo shiromuji are extremely rare for this reason. It is obvious that it is not a "taste" worth the investment to grow them on to jumbo size.

I do find it interesting, that of all the single coloured non-metallic koi, white is the least appreciated.

BB

[JasPR]

Bradley, shiro muji are just kohaku in which the white spreading gene has moved all over the body. So they are beni-less kohaku and not wild type -one color carp. A kohaku is a white fish 'with red on top' and the pattern is formed by how much the base shiro gene speads up the body from the base.
Its not that white or shiro is the least appreciated ( as the 'invention' of the tancho proves) but rather that the shiro muji is a failure on the way to the 'prize'. The prize being to create a white fish with intense beni plates forming an interesting pattern on the dorsal area. A dorsal pattern for viewing pleasure 'from above'. Nishikigoi, the ultimate pond fish.

JR

[mrbradleybradley]

JR,

This is my impression, or my confusion............ ie IS it you are saying.....

- Across the entire body, the cells have shiro genes
- Where there is beni, there is the addition of beni genes

Can you clarify

Regards

BB

[JasPR]

Hi Bradley,
As it turns out, koi genetics is very complicated. We have atavism - the reappearance of characteristics remote ancestors. This is the classic ‘throwback’. And we have other genetic mutations that make the gene pool unique to kohaku.
So a kohaku that ‘wants’ to be red is a throw back to a more wild form ( within the genetic limitation of the ‘kohaku gene pool).
But a kohaku that reverts to all white is a genetic expression of a mutant gene- this is a special genetic code in which ‘white’ spreads over the koi’s body- leaving only zones of color. So this is a white based koi with spreading white genes moving almost all over the entire koi. In the case of shiro muji we have an all white koi.
In a small percentage of kohaku you can sometimes see the classic kanoko pattern appear out of no where on a shiro muji- this phenomena illustrates the battle between the beni cells and the spreading white gene.