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Cattle Boards
Health & Nutrition
Lost 3 to blackleg
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<blockquote data-quote="farmerjan" data-source="post: 1685442" data-attributes="member: 25884"><p>Why do you say that passive immunity won't help the following spring? They should be vaccinated no LESS that 8 weeks or MORE from calving. We do it about 4-6 months before calving.... they go out to pasture and get bred, and get brought through the chute about 4-6 months after being out there... so preg anywhere from 2 to 6 months....</p><p>Oct would be perfect to give the cows a blackleg shot.... plenty of antibodies by the time they calve in March....</p></blockquote><p></p>
[QUOTE="farmerjan, post: 1685442, member: 25884"] Why do you say that passive immunity won't help the following spring? They should be vaccinated no LESS that 8 weeks or MORE from calving. We do it about 4-6 months before calving.... they go out to pasture and get bred, and get brought through the chute about 4-6 months after being out there... so preg anywhere from 2 to 6 months.... Oct would be perfect to give the cows a blackleg shot.... plenty of antibodies by the time they calve in March.... [/QUOTE]
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Lost 3 to blackleg
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