genetics and breeding

chicky1016

Songster
6 Years
Jun 20, 2015
159
10
111
South jersey USA
Is it ok genetics wise, if your chickens mate with (their own "family")? For instance- if my rooster mates with one of the hens that is (technically) his daughter, will her chicks have problems? (Like any other species)
 
Chickens are a pretty lenient species when it comes to inbreeding. There's even a specific type of breeding known as "line breeding" in which many generations of fowl are produced from just the same pair or family. Whenever inbreeding occurs, however, offspring must be culled ruthlessly for healthiness; anything that seems weak or off should be removed from the line.
 
Chickens are a pretty lenient species when it comes to inbreeding. There's even a specific type of breeding known as "line breeding" in which many generations of fowl are produced from just the same pair or family. Whenever inbreeding occurs, however, offspring must be culled ruthlessly for healthiness; anything that seems weak or off should be removed from the line.


What if they are brother and sister?
 
What if they are brother and sister?


Same as any other cross, most similar to parent X offspring in terms of how inbred they are. Of course the less closely related a bird is the lower the chance of any weak chicks, so something like aunt X nephew or cousin x cousin is less likely overall to cause issues. But even so issues are not extremely common in inbred fowl unless the breeder is careless and allows poor quality birds to continue reproducing, and in the first generation alone very few if any chicks will present with issues or weakness.
 
Same as any other cross, most similar to parent X offspring in terms of how inbred they are. Of course the less closely related a bird is the lower the chance of any weak chicks, so something like aunt X nephew or cousin x cousin is less likely overall to cause issues. But even so issues are not extremely common in inbred fowl unless the breeder is careless and allows poor quality birds to continue reproducing, and in the first generation alone very few if any chicks will present with issues or weakness.

Will the issues always be obvious? (deformed foot... bird with 2 heads, lol), things like that.
 

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