Is there a known ratio of males to females born? Are you more apt to get one sex over the other?

The reason I ask is it seems most adult o's you hear about are fighting males, or breeding pairs.. So I was curious. Thanks Guys and gals

im not sure about this..... my adults are male and female.

the latest info from the breeder in my place says
hatching the eggs in different temperature has an
effect on sex orientation of hatchlings. i haven't
gone into details yet.

in tilapia culture, they prefer on all males since
they grow faster than all females.

My Sev eggs are 3 days old, not hatched yet and at 80 degrees F....how can I find out which their most likely to be?
Do you have eggs Nicki??

No but I think my two big O's may both be female. I was just wondering.

Man Nickisue thats a tough question...I looked for a half hour on the web to try and find a ratio and I found nothing

I didn't either but I thought it was a good question for my experts.

Yeah no kiddin... I would be interested to know as well

I don't think there is a ratio its down to nature sorting it out. but I could be far wrong here its just my way of seeing things. I have one female the other I have no idea about. I thought it was a male but has never paired off so I am left wondering. they get on fine so i wounder if its a male that's infertile. again I am just guessing. i don't agree with bothering the fish just to find out, and to be honest it suits me fine. I have had Oscars that have paired off and they just become a pain to the other fish.

Eddie at Bluegrass told me if you got 6 juvie's, you could expect about an even number of male to females. Does that mean 50/50? Humans are differant, but I think its more like 55% females.Marcus, does annual water temp in the wild change the sex of offspring?

6 is a good number to start a breeding program but in no way would it guarantee that all would end up pairing or even more important will have a mate of the other sex. in the wild or even with captive breed fish if you net and remove 6 fish from a batch of 2000 and you were not in gods good books that day you could end up with 6 males. it is very unlikely and that's why 6 gives you a good chance of 1 or maybe 2 paired groups. after all when it comes to selecting,its not the 2000 fish making the choice its a human choosing the best looking fish. so that throws out the 50/50. As for the water temp having an effect on sex of the fish???? I do don't know. I cant see it would hold true cos if the weather was stable like in a captive tank you should end up with all one sex. that would mess up nature. this could be a really good question for the program mythbusters that's on TV.))))) I wounder what OFL thinks on this subject.))))

A wonderful response Marcus.That's what I have also been told. The 6 juvie's don't guarentee nothing more than 6 fish with some being females. Dosen't mean they will pair up.This is an excellent question and topic. Thanks for the response.