Likewise, for a practice to have conservation merit, there MUST be a reasonable expectation that the practice will result in the sustainable utilization of the genepool in question. This is not open for interpretation. This is a fact that governs the concept of conservation within the context of this discussion.
While the conservation of Farm Animal Genetic Resources is a global concern, it is a practice that occurs at the local/regional level. Globally (FAO) it is recognized that the best way to conserve our farm animals is for farmers in various regions to maintain those animals best adapted to their particular climate, input availability, markets, and culture.
This is how our overall diversity is protected. Each community does an excellent job with just a few varieties.
The practice of importing stock has absolutely no conservation benefit unless there is a reasonable expectation that the import will have a positive impact on the local region's ability to sustainably maintain it's breeds.
I believe in learning from the past and asking whether the status quo is working. Tara, the frequent importing of exotic lines isn't a new thing, it's been going on for decades. Over these decades, one would have a hard time suggesting that our heritage genepools have improved. It's much easier and safer to suggest the opposite.
We should be able to look around our communities and find genepools that trace back to ones that have been there for several decades. This is the result of sustainable breeding efforts. One would have had an easy time of this 50 years ago. Unfortunately, this is now hard to do. Most genepools we may find won't even trace back a decade in our communities. At least this is the case here on Vancouver Island.
As Frank said, to conserve the breeds, we need to stop importing and start learning how to work with what we have.