carolinagirl
Ridin' The Range
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- Mar 2, 2011
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I have found no logical reason for it. Perhaps it's just a hardiness thing that came from years and years of "survival of the fittest". I have seen it with fish too. I keep koi (ornamental pond fish). The closer the variety is to the wild carp, the more resistance they have to parasites. Parasites that will wipe out one variety of fish barely even affects certain other varieties. It would be interesting to do lab work and see if they both breeds of sheep are carrying the same parasite load and just aren't affected....or if they even resist taking on the load from the start.