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Type EE blackleg
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<blockquote data-quote="Chris H" data-source="post: 1091456" data-attributes="member: 1974"><p>Denver, I've been vaccinating our calves very young too, due to losing very young calves with the blackleg symptoms. I lost 1 last year at 7 days, the day I had planned on vaccinating him. I lost 1 this year at 3 days. I did lose a calf at 2 months this year, I suspect blackleg on him but can't be sure. I know I got him vaxed once, but no repeat vax.</p><p></p><p>Couple things I've noticed, 1) it's most often the calves getting the most milk that are most susceptible. 2)It occurs most often in one line of cows we have. </p><p>That line of cows are consistently heavy milking, so I don't know if observation 1 is true because of observation 2, or if observation 2 is true because of observation 1. Both the calves lost this year trace back to the same cow, 2 generations for one, 3 generations for the older calf.</p><p></p><p>What I have gotten from this thread is we're going to start vaccinating the older cows, too.</p><p></p><p>BTW, we have a heavy deer population, and 45+ years ago this was a large dairy farm. We could have it in the soil from both those factors.</p></blockquote><p></p>
[QUOTE="Chris H, post: 1091456, member: 1974"] Denver, I've been vaccinating our calves very young too, due to losing very young calves with the blackleg symptoms. I lost 1 last year at 7 days, the day I had planned on vaccinating him. I lost 1 this year at 3 days. I did lose a calf at 2 months this year, I suspect blackleg on him but can't be sure. I know I got him vaxed once, but no repeat vax. Couple things I've noticed, 1) it's most often the calves getting the most milk that are most susceptible. 2)It occurs most often in one line of cows we have. That line of cows are consistently heavy milking, so I don't know if observation 1 is true because of observation 2, or if observation 2 is true because of observation 1. Both the calves lost this year trace back to the same cow, 2 generations for one, 3 generations for the older calf. What I have gotten from this thread is we're going to start vaccinating the older cows, too. BTW, we have a heavy deer population, and 45+ years ago this was a large dairy farm. We could have it in the soil from both those factors. [/QUOTE]
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