"ShowABLE" Hollands means that the rabbit CAN be shown. Any rabbit can be shown if it is free of disqualifications, such as wrong eye, fur, or toenail color, over 4lbs, health issues, spinal deformities, ect.
"Show QUALITY" Hollands can very well be the same thing (some breeders don't discriminate between the two), but QUALITY Hollands will often WIN or place at shows.
You see, there are disqualifications and faults. They are two completely different things.
Sir Lancelot, above (sorry for the bad pic), also has a few faults, but at a show he would be disqualified because he's over the weight limit. He has no other DQs except for that.
Dragonfly's Gracie, not pictured, would not place at a show even if she was at the proper weight (which she's not). Not only would she be DQ'ed, but she would also be faulted for almost everything about her. She has nice width but not much else going for her - besides her amazing teddy bear personality and the fact that she produces AMAZING babies. That's why I keep her around ;).
In breeding, its best to breed rabbits together that have little faults overall, to produce the best babies. And if one rabbit has a fault like a sloped hindquarter, try to breed her to a buck with a full, nice HQ. That way, you're giving the babies born a better chance of having the better hindquarter gene. If you breed two slipped HQs together, that's what the babies will have also.
Most breeders try to stay away from DQs, and don't use any rabbit that has a DQ in their breeding program. Brood, or bigger, Hollands are the exception. As long as the big bunny has nice type, he can produce babies that also have nice type, in small and bigger varieties (as long as the rabbit it's bred to is smaller).
Hereditary DQs besides weight are best to stay away from. Such as deformities or severe faults. DQs that a rabbit picks up overtime, like a broken nail, or injury from a mating gone wrong, as long as they have good type, can be bred just as easily as any other well-typed, show quality Holland. They just can't be shown.
I got the idea for this blog from my friend's blog over at Rock River Rabbitry. Click HERE to visit her page!