Male Vs. Female Ratio

[BeautifulBetta]

Hey guys,

I've heard from a few different breeders in the past and recently, that they'll often get more females than males in a spawn, but I've never heard that theres more males. Has anyone else heard this or know from experience? I'm kinda curious. One spawn that stands out most that I heard of, was there were 64 fry, and only 4 were male, which is freakin' crazy.
Any info would be cool :) Its very interesting!

[Curlyfatbottom]

That a big off set
But usually more female then male in each spawn
I've have heard younger female throw more male and virgin female

[BeautifulBetta]

How fascinating! I wonder why that is lol

[Curlyfatbottom]

I mean virgin female throw more male
There is a guy on this form that know a lot more the me on this subject n a lot of other thing
:)
Indjo

[bettalover2033]

I am actually going to be testing this theory.

OFL said that it is either a young female to an older male produces more males to females or Vice Versa.

[indjo]

There are many beliefs on this topic.
1. Such as the sex will be more to the younger sex - more males if male is young, more females if females is young.
2. Temp. plays a role on sex outcomes - lower temps will produce more females.
3. The first three spawn (female) will produce more males, thus female will be culled after her third spawn.

I rely on belief 2 and 3. A first spawn during the hot season may produce 90% males (my highest). 2nd and 3rd spawn during hot season may produce 40-60% males. 4th spawn during hot season = below 30% male.

2nd and 3rd spawn during cold season may produce 60-90% females (I have 3 spawns like this). 4th and more spawn during cold season = 90% females.

I'm still waiting for a first time spawn during cold season to grow. Will have results next month or so - if they survive.

[BeautifulBetta]

I could see temperature being a candidate, I've actually heard the same about human babies. Good luck on your spawn! :) Be sure to let us know what you find!

[Tisia]

here's some info about the age theory.

[BeautifulBetta]

Thanks Tisia!! I'll have to give that a read :D

[Hopeseeker]

Originally Posted by indjo

There are many beliefs on this topic.
1. Such as the sex will be more to the younger sex - more males if male is young, more females if females is young.
2. Temp. plays a role on sex outcomes - lower temps will produce more females.
3. The first three spawn (female) will produce more males, thus female will be culled after her third spawn.

I rely on belief 2 and 3. A first spawn during the hot season may produce 90% males (my highest). 2nd and 3rd spawn during hot season may produce 40-60% males. 4th spawn during hot season = below 30% male.

2nd and 3rd spawn during cold season may produce 60-90% females (I have 3 spawns like this). 4th and more spawn during cold season = 90% females.

I'm still waiting for a first time spawn during cold season to grow. Will have results next month or so - if they survive.

Ok, now, I'm really intrigued!! So much info on the website!!!