Spit blue Gouldians

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Gympie birds
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Location: Gympie QLD

Hi I saw someone who has spilt blue gouldians for sale only males. I have normal hens is it worth buying the males and breeding to the normal hens ? What would this combination produce ?
Thanks for your time kind regards Gympie birds
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deegs
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I think you’ll only get normal babies. You’d need to put two splits together to get some Blues.
Cheers.
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finchbreeder
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All the birds you produced would be visually normal. 25% would be split Blues. But there would be no way of telling which 25% so the exercise would be pointless.
LML
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Craig52
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Correct FB, not a good mating due to all young having to be test mated to a blue bird for a result. Even two split birds can produce normals, splits and blues.
If you can buy a blue hen you will breed all splits and blues.
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Redbus
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Half the hens and half the cocks will be split blue but all will appear normal.
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finchbreeder
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One gene in 4 is Blue so it can't go to more than one bird in 4.
LML
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Craig52
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When people start including the sex of the birds it confuses everyone. When i say 25% will be split it means in both sexes, including the sex in a autosomal recessive mutation is non viable because of the mutations mode of inheritance.
Sexlinked mutations yes males and females play a role and the percentage can be used as for sexual percentage.
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arthur
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finchbreeder wrote: 15 Jun 2021, 20:04 All the birds you produced would be visually normal. 25% would be split Blues. But there would be no way of telling which 25% so the exercise would be pointless.
No . . 50% would be split Blues

B-N x N-N . . . It works the same way as the algebra that you learned at school F.O.I.L.{ First(pairof genes)/Outside(pair)/Inside(pair)/Last(pair)
BN(First pair)BN(Outside pair)
NN(Inside pair)NN(Last pair)

50% Splits + 50% Normals
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arthur
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Image

This diagram may explain it a bit better . . The pairing is a DILUTE x a NORMALsplit DILUTE . . DILUTE is A-R
Results are 50% DILUTES + 50% SPLITS
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finchbreeder
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Fair enough. Still not worth the effort but.
LML
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