My large British zebras have laid

[Fraza]

So my large zebras the fawn female with the metal ring and the male that I’ve been told maybe be split to fawn but looks normal, have built a nest and now laid 4 eggs on counting and I candled two of them and they are fertile already within just five days I can see the red line right through however I haven’t touched the other two eggs nor have I checked to see if ther is more yet but fingers crossed I get a good fertility ratio

What are use guessing the outcomes to be will they be extremely big like the parents or does it work the opposite and will they be half fawn chicks and half normal chicks

[Fraza]

I’ve now cleaned her feet and her feathers went back to not looking ruffled after she had a few baths however her feet go over her nails abit however I think it’s becaiuse of her size because she’s just about a centimetre off the size of my Java’s

[Sheather]

If the male is split fawn they will be mostly fawn chicks. If he is not, there will be only gray chicks. If both parents are big, the babies will be big. If one is big and one is small, the babies will likely be all sorts of sizes.

I had a pair of an English and a regular zebra a few years ago, and they had some babies as big as the dad, some smaller than the mom, and lots in between.

[Fraza]

Sheather okay ThAnkyou I did think that they would come out quick but I was just unsure wether there could be an opposite and they go small lol and that strange that u even had some smaller

I’ll post pics anyway if they amhatch and fledge

[Flight Feathers]

If the male is split fawn they will be mostly fawn chicks. If he is not, there will be only gray chicks. If both parents are big, the babies will be big. If one is big and one is small, the babies will likely be all sorts of sizes.

I had a pair of an English and a regular zebra a few years ago, and they had some babies as big as the dad, some smaller than the mom, and lots in between.

I am pretty sure the father does not need to be split fawn to give fawn chicks It just means all the fawn chicks will be male because fawn is a sex linked gene. Not a recessive gene. There is definitely a chance of other colors as well as fawn and normal. Take into account the sex linked genes such as cfw that your male could be carrying + all the recessive genes they could carry. And if I'm right a male zeb can have two copies of dominant genes. (But not two of the same dominant) You won't know their genetics until they have successfully raised a couple clutches of babies

[Fraza]

Flight Feathers okay thankyou I can’t wait to have some zebbie chicks it’s been a while and hard journey getting used to the aviary and had a few fails with breeding but I can’t wait now

And by the way he had a clutch with a fawn black breast and a white cake out however they didn’t last longer than about 4-5 weeks as the parents got stuck outside part of aviary

[Flight Feathers]

Flight Feathers okay thankyou I can’t wait to have some zebbie chicks it’s been a while and hard journey getting used to the aviary and had a few fails with breeding but I can’t wait now

And by the way he had a clutch with a fawn black breast and a white cake out however they didn’t last longer than about 4-5 weeks as the parents got stuck outside part of aviary

Yes I think everyone makes mistakes when they first start out with breeding. It's part of the learning process. And even advanced breeders still have things go wrong.

This white - was it a heavy pied or a pure white?

[Fraza]

Flight Feathers well it didn’t have time to fully feather but it looked mostly white however I won’t know also the babies were black skinned 3 of them then one pink but I don’t know if this is due to the Dad or the mums colour

[Flight Feathers]

Flight Feathers well it didn’t have time to fully feather but it looked mostly white however I won’t know also the babies were black skinned 3 of them then one pink but I don’t know if this is due to the Dad or the mums colour

If they hatch out as black then I'm guessing this indicates they are a normal colored zeb or if not then a darker Color. The white one would have been pink as a baby.

[Fraza]

Flight Feathers yeh three was black skbut n and one pink

[Icearstorm]

Flight Feathers

You may have human sex-linked genetics and human sex-linked genetics mixed up. Unlike in humans, female birds determine the sex of the offspring, as they have a Z chromosome and a W chromosome, rather than two X chromosomes. In effect, this means that female birds inherit sex-linked alleles like male humans do, and vice versa.

Flight Feathers and Fraza

The male must be split for fawn babies, as the male will automatically pass on a Z sex chromosome to his offspring; any female offspring will have one Z chromosome from their father, and one W chromosome from the mother. In most cases of sex-linked genetics, it is the Z chromosome that carries the gene, whereas the W chromosome does not affect gene expression.



Here's an adaptation of a punnet square I used earlier.

PUNNET SQUARES
-Allele: codes for trait on specific gene, like pied/self or normal/fawn
-Alleles in uppercase are dominant (using N here)
-Alleles in lowercase are recessive (using n here)
-ZZ are males, ZW are females

(Having to use ......... for proper formatting.)

Format:
............................................Parent 1's two possible contributions
.
Parent 2's two...................offspring type 1................offspring type 2
possible contributions.........offspring type 3................offspring type 4

Offspring 1 gets left Parent 1's allele and top Parent 2's allele, for example.

Key
Z(N): Z chromosome with dominant normal grey allele
Z(n): Z sex chromosome with recessive fawn allele
W: W sex chromosome, no gene related to fawn exists



So if fawn bird is female (Z(n)W), male bird is pure normal(Z(N)Z(N)):

................................Z(n) ............ W
.
................. Z(N)......Z(N)Z(n)......Z(N)W
.
..................Z(N)......Z(N)Z(n)......Z(N)W


0% of offspring look fawn.
Genetically...
50% (100% of males) are split to fawn and can pass on the fawn allele, but do not look fawn.
50% (100% of females) are normal, and cannot contribute an fawn allele.

[Fraza]

Thanks Icearstorm that summed it up well and yeh it’s an alright outcome so I will see what I get if anything strange pops out of one of those eggs I’ll keep u posted
[/quote]
0% of offspring look fawn.
Genetically...
50% (100% of males) are split to fawn and can pass on the fawn allele, but do not look fawn.
50% (100% of females) are normal, and cannot contribute an fawn allele.[/quote]
So this ^is the full outcome

[Flight Feathers]

Flight Feathers

You may have human sex-linked genetics and human sex-linked genetics mixed up. Unlike in humans, female birds determine the sex of the offspring, as they have a Z chromosome and a W chromosome, rather than two X chromosomes. In effect, this means that female birds inherit sex-linked alleles like male humans do, and vice versa.

Flight Feathers and Fraza

The male must be split for fawn babies, as the male will automatically pass on a Z sex chromosome to his offspring; any female offspring will have one Z chromosome from their father, and one W chromosome from the mother. In most cases of sex-linked genetics, it is the Z chromosome that carries the gene, whereas the W chromosome does not affect gene expression.



Here's an adaptation of a punnet square I used earlier.

PUNNET SQUARES
-Allele: codes for trait on specific gene, like pied/self or normal/fawn
-Alleles in uppercase are dominant (using N here)
-Alleles in lowercase are recessive (using n here)
-ZZ are males, ZW are females

(Having to use ......... for proper formatting.)

Format:
............................................Parent 1's two possible contributions
.
Parent 2's two...................offspring type 1................offspring type 2
possible contributions.........offspring type 3................offspring type 4

Offspring 1 gets left Parent 1's allele and top Parent 2's allele, for example.

Key
Z(N): Z chromosome with dominant normal grey allele
Z(n): Z sex chromosome with recessive fawn allele
W: W sex chromosome, no gene related to fawn exists



So if fawn bird is female (Z(n)W), male bird is pure normal(Z(N)Z(N)):

................................Z(n) ............ W
.
................. Z(N)......Z(N)Z(n)......Z(N)W
.
..................Z(N)......Z(N)Z(n)......Z(N)W


0% of offspring look fawn.
Genetically...
50% (100% of males) are split to fawn and can pass on the fawn allele, but do not look fawn.
50% (100% of females) are normal, and cannot contribute an fawn allele.

Zebra finch genetics are the only genetics I know. Seeing as fawn is sexlinked if the male was split for then you would get both male and female anyway.

[Fraza]

Flight Feathers Ohright that’s alroght anyway I would prefer a Male because they are more attractive to sell and the size of it is going to be huge

[Flight Feathers]

Flight Feathers Ohright that’s alroght anyway I would prefer a Male because they are more attractive to sell and the size of it is going to be huge

Flight Feathers

You may have human sex-linked genetics and human sex-linked genetics mixed up. Unlike in humans, female birds determine the sex of the offspring, as they have a Z chromosome and a W chromosome, rather than two X chromosomes. In effect, this means that female birds inherit sex-linked alleles like male humans do, and vice versa.

Flight Feathers and Fraza

The male must be split for fawn babies, as the male will automatically pass on a Z sex chromosome to his offspring; any female offspring will have one Z chromosome from their father, and one W chromosome from the mother. In most cases of sex-linked genetics, it is the Z chromosome that carries the gene, whereas the W chromosome does not affect gene expression.



Here's an adaptation of a punnet square I used earlier.

PUNNET SQUARES
-Allele: codes for trait on specific gene, like pied/self or normal/fawn
-Alleles in uppercase are dominant (using N here)
-Alleles in lowercase are recessive (using n here)
-ZZ are males, ZW are females

(Having to use ......... for proper formatting.)

Format:
............................................Parent 1's two possible contributions
.
Parent 2's two...................offspring type 1................offspring type 2
possible contributions.........offspring type 3................offspring type 4

Offspring 1 gets left Parent 1's allele and top Parent 2's allele, for example.

Key
Z(N): Z chromosome with dominant normal grey allele
Z(n): Z sex chromosome with recessive fawn allele
W: W sex chromosome, no gene related to fawn exists



So if fawn bird is female (Z(n)W), male bird is pure normal(Z(N)Z(N)):

................................Z(n) ............ W
.
................. Z(N)......Z(N)Z(n)......Z(N)W
.
..................Z(N)......Z(N)Z(n)......Z(N)W


0% of offspring look fawn.
Genetically...
50% (100% of males) are split to fawn and can pass on the fawn allele, but do not look fawn.
50% (100% of females) are normal, and cannot contribute an fawn allele.

I think I kind of get it now. Takes ages for me to get things tho lol

And that’s cool you can get really big zeb babies Fraza