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And it is visible also by CzW: in heavy lines there are MUCH MORE serious problem with, HD
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..i can't agree..on a heavy dog, HD affect more than a light dog, (environmental factors) but from genetical heritage point view (the first, and only reason of HD presence), and genetical trasmission is wrong (for science knowledge of today), or better, is very very hard to demonstrate for the complexity of the interpenetration between genetic and environmental factors.
..if is realy than heavy type can give many healty problem, is realy also than reducing size with hig's inbreeding, even with strict selection on disease, classic depression from imbreeding are alwais present with COI more than 15% for 2-3 generation. We can see it on all toy breed and more others breed than coming from a so big type. Are all very dificult breed to breeding with great healt problem..yes, CZW is so far from this but Trumler study on domestication say: "on hybrid type these process are much faster than in a domestic dog breed"
27-01-2010, 22:11
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