Simply Koi and More Koi

Hi Dunc
No Idea,but does the vent change as they mature?

Regards Geoff

A = male as the vent looks concave

B = female as the vent looks convex

Andrew

does the vent change as they mature?

very hard to distinguish this in a young carp they will probably need to be going into nissai and from then on, for this to be evident , even the experts have a hard time determining sex in tossai and trust me get it wrong loads of times

yes "A" is the male with a round-ish exit

and "B" is the Female always an elongated quite long slot lying at right angles across the trunk of the body

so well done every one even if you got it wrong you hopefully have learned something new

Hi Duncan you know what this means some of us fellas do know something about sex
But seriously thanks for the lesson

I wonder how many will be turning their fish over and having a look now

I know Justin has, he's just emailed me a list of females and males!

I'd forgotton all about looking for this on the vent, been looking for milt mostly recently.

its that time of year again so i though it would not hurt to bring this back up to the top

dunc

i've gone for B based on the sexing koi article that mark from cuttlebrook done in koimag
plus when i netted my showa earlier it looked like pic A and i'm positive its male

Interesting stuff - cheers Duncan,

My Initail reaction was:-

a - Female

b - Male.

But i have now read it back and see i am wrong.

bump

brother of feeeshpond wrote:A = male
B = female.
Without any doubt.

what he said

To be or not to be ? It has to be "B"

kinfisher

Another taboo subject brought out in the open

I got it wrong, but glad I have finally learnt it, as it appears no matter how many times people have shown me in the flesh its never stuck, so hopefully todays lesson that will stay put

Mark

When at Cuttlebrook talking to Mark, he said he sexes by feeling the gill plates, fairly easy at this time of year females have very smooth plates, males rough plates a bit like sandpaper, but in smaller males there is only a very slight roughness.

Yes the gills can be rough a bit like us males with some stubble and also you will sometimes see breeders/dealers looking at the pec and these can have little rough bits going along the leading ray which is also a tell tail sign.