Sick Birds of mutation breeding?

[forpus]

I have read that many times isnt smart to mix some kind of mutation becouse the kids are not so healthy as normal parrotlets anyone knows wich mix of birds are not recomended to get eggs?

its ok lutino with a pastel one?

[enborgle]

I'm not sure the extent to which it has been scientifically proven (perhaps someone else can jump in with some article links?) but the thinking is that breeding two mutations together can potentially lead to genetic defects in the offspring.

One school of thought is that it has something to do with how closely line bred the original mutations were to each other when they were first developed in captivity. It's sort of the same concept as the one behind laws that prohibit any two closely related people to marry - the resulting children would be at far greater risk of being born birth defects and other genetic anomalies because of how similar the parental genes were.

As an example, you will hear some breeders comment that the correct pairing to get blue offspring is to breed one blue to a green split blue, rather than two blues together. Of course, this will result in some green split blue offspring as well, which are usually sold for less money than their blue clutchmates - for this reason I sometimes suspect that some irresponsible breeders pairing blue to blue (or yellow to yellow) do so with their financial interests rather than the birds' well-being in mind. That being said, certainly there are breeders out there breeding blue to blue with healthy chicks to show for it, but still it is believed that this practice increases the risk of a genetic defect or anomaly developing within a line, especially if the resulting blue offspring is again paired with a blue mate, and so on down the line.

Some mutations take at least two generations to create, and this means that breeding one mutation to another different mutation is necessary to create the desired offspring - there is no other way to achieve the colour the breeder is looking for. In these cases, if we never bred one mutation to another, we would lose out on most of the beautiful mutations that have been developed.

In the case of both lutino and pastel mutations as you mentioned, each takes two generations to create so by the time you breed them together, you are now potentially into your third generation of mutation offspring, which may or may not be problematic. This practice is undertaken by experienced, responsible breeders who understand the risks of breeding multiple generations of mutations and take appropriate precautions to maintain the health of the offspring, especially with regard to record keeping and genetic soundness. Hopefully someone here who has experience breeding the rarer mutations will be able to chime in here and offer you some more insight into how this can be done safely.

[forpus]

tx a lot for this fantastic answer!! good information tx :D

I am not the one that is thinking about mix that kind of mutation, is another person but is interested to know things like this and advice her in case is not recomended