CA hybrid fertility list

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domenech69

Gambusia
MFK Member
Oct 27, 2019
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Is there a list with all the known Central America hybrids and gender fertility. I think it will be helpfull to anybody that want to start a hybrid project.
 
I would think that the question of fertility would be such an individualized thing between fish that it would be nearly impossible to make an accurate list.

I’m sure some combinations produce infertile males of some species and infertile females of another.
But there can be exceptions within these groups.

Im not aware of any list. That’s not to say there’s not one somewhere
duanes duanes is pretty knowledgeable on Central American cichlids.
 
If you're referring to flowerhorn, ZZ and gold base males have higher odds of being fertile but still a gamble. A Kamfa fertile male is like finding a needle in a haystack. Red Texas lower generation males are a needle in a haystack. The higher the generation the better your chances, but still a gamble. Females across the board...kamfa, zz, gb, and rt lay eggs more often than not.

If you're referring to pure centrals to cross together...as far as I know pretty much any are possible if you can get them to do the deed. I'm about 85% confident in that but gladly leaving that extra 15% to be corrected if I'm wrong. ???
 
If you're referring to flowerhorn, ZZ and gold base males have higher odds of being fertile but still a gamble. A Kamfa fertile male is like finding a needle in a haystack. Red Texas lower generation males are a needle in a haystack. The higher the generation the better your chances, but still a gamble. Females across the board...kamfa, zz, gb, and rt lay eggs more often than not.

If you're referring to pure centrals to cross together...as far as I know pretty much any are possible if you can get them to do the deed. I'm about 85% confident in that but gladly leaving that extra 15% to be corrected if I'm wrong. ???
I automatically went to flowerhorn or Texas hybrid in my mind.
That’s a good point though.

I don’t know if anyone has taken the time to make a list of pure fish crosses and known fertility rates of each sex.
 
What about this..
GT(m) x RTHF(f)

what are the chances to get a fertile male?

Both parents share GT blood but the mother is a red texas hybrid. Would the hybridization still create sterile males?
 
What about this..
GT(m) x RTHF(f)

what are the chances to get a fertile male?

Both parents share GT blood but the mother is a red texas hybrid. Would the hybridization still create sterile males?
I would assume so mainly just because most red Texas are made by breeding a female BP with a male Texas and then breeding the offspring with again with another Texas, so most red Texas tend to have 1/4 BP and 3/4 Texas. So if you would most likely end up with very few offspring that are born infertile but the majority would be fertile.
 
Chris started this list several years ago, which is a sticky at the top of the hybrid folder.

 
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I would assume so mainly just because most red Texas are made by breeding a female BP with a male Texas and then breeding the offspring with again with another Texas, so most red Texas tend to have 1/4 BP and 3/4 Texas. So if you would most likely end up with very few offspring that are born infertile but the majority would be fertile.
My red Texas female is flowerhorn/texas hybrid. Doesn't show any bp traits although yes there might be some in there. Would that change it up a bit?

She seems to be a product of a few selective breeding programs, I cant imagine she was from a random spawn

imagejpeg_1.jpg
 
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My red Texas female is flowerhorn/texas hybrid. Doesn't show any bp traits although yes there might be some in there. Would that change it up a bit?

She seems to be a product of a few selective breeding programs, I cant imagine she was from a random spawn

View attachment 1404716
Maybe, not a 100% certain tho. She is very nice looking either way tho. I know with FH atleast that, unlike the BP, it's very flip flop on which could be infertile/fertile. So honestly it's like the toss of a coin on whether or not it will be fertile. You could end up really lucky but then again you could end up with an infertile female. So all in all it's a gamble with all chips on the table. It would definitely be worth seeing a hybrid between those 2 tho. Personally I'd like to start a paratilapia polleni/FH cross project but I honestly don't know if it would even be possible to hybridize an African with a FH.
 
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