How do you breed for a good loin/long saddle?

[VixenDraws]

I'm I breeding for the meat pen but I don't nessesarily want to bring in a new pedigree rabbit with perfect loins just so I can breed it inefficiently. I'm not nessecarily against inbreeding as long as there's no mutated toes or brain damage, but I don't wanna breed brother to sister. How would I go about identifying a long saddle (good loins?) How would I breed that in to a trio? Replace my other doe with a kit? What else should I try to breed for, and how do I identify them? What scores points, and better yet, puts better meat on my table?

 

[samssimonsays]

@Pastor Dave @Bunnylady

 

[Pastor Dave]

Bunnylady is THE best I have seen on here in figuring and understanding genetics.
I shoot for 5 Lb fryers by 10 weeks. A reputable commercial type breed is best for meat pen selection. Californians, New Zealands are best or crosses of the two. Palominos and Satins are close seconds, but will grow a little bit slower. Start out with breeders showing the most superior characteristics and aim for uniformity. A trio will not give you as much diversity as 2 bucks and 4 does, but will work. I have not seen in a meat pen very much difference in body shapes or better loins over another. Yes, there will be some larger or smaller than the others, but similarity in weight, shape, and size is preferential. The species was developed more for large hind legs. Look for a 4-H or FFA Guide of Rabbit Meat Pens. Hope this helps some.