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VikingNews UK 02 2017
8 / 28
8 vikingnews | june 2017 how much reduction in
hoof
disorders can you expect? e ven though the heritability of
hoof
health
may be rather low (about 4%) compared to other traits, it has been confirmed that the prevalence of
hoof
disorders is considerably lower in progeny of sires with favorable
hoof
health
breeding values. how much reduction in
hoof
diseases can you expect from selecting a sire with a breeding value (
ebv
) 120 for
hoof
health
on sub-index level? by uliana langeland, international marketer vikinggenetics performance of daughters of a bull with
ebv
120 vs. 80 for sub-indices in
hoof
health
index being treated in the same way, some cows will have
hoof
problems, and others will not. some of the cows will recover easier, while others will have
hoof
problems more often and with greater severity. why is it like this? looking at the bull?s effect on the genetic ability of daughters to resist various
hoof
disorders, we can show the difference between an
ebv
120 bull compared to an
ebv
100, which can represent the population average. regarding sole ulcer, verrucose dermatitis, interdigital hyperplasia, cork screw claw - for a vikingholstein, the daughters of the bull with
ebv
120 will have 60% less cases of disease compared to the bull with
ebv
100.
ebv
120 60% less disease
hoof
health
matters
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