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| It has been in the California coast range and the Sierra mountains for my lifetime. It is a none issue with any native cattle. Only a problem for bring cattle from areas that don't have it. So I don't study up on it often. I thought it was spread by ticks here, but maybe more study has other causes. But any area that has brush in the pasture has it. You get to the central valley between the mountain ranges and cattle don't have it.
So bulls from breeders in the valley was the first place we had a problem, well my father not me. I want to say in the 1970's there was a vaccine that worked. My understanding is all our calves get it and at a young age and it is mostly so mild you never see it. Between anaplasmosis and Foothill Abortion in none native cattle most ranchers just raise their own replacements out here.
For some reason the the vaccine was not made for a time. But now you need a vet to order it. But they let ranchers do the actual vaccination. It is a 2 shot deal. The only bull I have ever lost from anaplas was one that got mean and refused to go in the alley for the second shot. We attempted to get the second shot in him over the fence in the lead up area. Thankfully not a high dollar bull. Was very educational for my son in judging bulls at auction and there temperament. | |
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Anaplasmosis
