Line Breeding questions

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TinysMom

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First of all - Pam Nock has an awesome line breeding chart here. I posted the link in my blog as a reference for me to remember it as I do breedings...but someone pointed out - why go through all those breedings when rabbits c/d will have the same genetic makeup (50% of each parent's lines) and rabbit I at the bottom of the chart.

I didn't have an answer.

One of the things that I have noticed is that my main herd buck, Mercury - consistently gives about the quality of babies (at least 50% of the litter) with the same strengths, etc. all the time.

I'm wondering about keeping a doe that is 75% of his genetics from one mother - and a buck that is 75% his genetics from another mother..and using them together. Would that be too much inbreeding? Just right?

Right now I pretty much have three does I can work with - well - two.

I can do Mercury/Harmony for light gray bunnies. I can do Mercury/Athena for light gray bunnies. When I do Mercury/Nyx the whole litter is steel...so I can't do that.

But at what point do I merge Harmony's lines with Athena's lines?

I hope that makes some sense. Right now I have one generation from each mama.


 
Because the F1 (C/D)generation would not have as limited of a gene pool as the F4 (I), which would have been selectively chosen for a particular trait.

The more inbreeding, the more limited the gene pool is.
 

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