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possible PI cow
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<blockquote data-quote="joe" data-source="post: 172884" data-attributes="member: 1233"><p>had the vet out a few weeks ago to treat a heifer for retained placenta. I had just started calving and had lost the first 2 calves, they came a month early. Vet took blood samples from the two heifers that were open. came back as high titers for both BVD 1 and 2. he is ASSUMING they came in contact with BVD and were fighting off the infection and lost the calves. these heifers were vaccinated with Bovishield Gold FP 10 prior to breeding last march. his only explanation is there may be a PI cow in the herd. these heifers are home raised and have not had contact with the older cows since they were weaned. But the older cows were in the lot that these heifers are in 2 months prior. is BVD viable in the dirt for long periods? It cost $84 each to have these two heifers tested, so testing 250 head is not a good option. Also the Mrs registered heifer calf is in the lot where the older cows will be coming to soon. Would it be best to move this almost yearling calf out, or to let her have contact with the older cows to build an immunity before breeding her? The calf has been double vaccinated. are there any signs or symptoms of a PI cow?</p></blockquote><p></p>
[QUOTE="joe, post: 172884, member: 1233"] had the vet out a few weeks ago to treat a heifer for retained placenta. I had just started calving and had lost the first 2 calves, they came a month early. Vet took blood samples from the two heifers that were open. came back as high titers for both BVD 1 and 2. he is ASSUMING they came in contact with BVD and were fighting off the infection and lost the calves. these heifers were vaccinated with Bovishield Gold FP 10 prior to breeding last march. his only explanation is there may be a PI cow in the herd. these heifers are home raised and have not had contact with the older cows since they were weaned. But the older cows were in the lot that these heifers are in 2 months prior. is BVD viable in the dirt for long periods? It cost $84 each to have these two heifers tested, so testing 250 head is not a good option. Also the Mrs registered heifer calf is in the lot where the older cows will be coming to soon. Would it be best to move this almost yearling calf out, or to let her have contact with the older cows to build an immunity before breeding her? The calf has been double vaccinated. are there any signs or symptoms of a PI cow? [/QUOTE]
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