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Cattle Boards
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"Lunger"
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<blockquote data-quote="wbvs58" data-source="post: 1753489" data-attributes="member: 16453"><p>Yes when you buy cattle in all the time you are certainly incurring biosecurity risks no matter how carefull you are. An obviously sick one like this is probably no greater risk than an apparently healthy one. PI's can be poor doers like this or can be top show cattle.</p><p>The following is not addressed to you Katpau as you seem aware of the situation. Young cattle such as steers and heifers before joining out on grazing are a very low risk with a PI amongst them. Most will get BVD and get over it completely with immunity without you even being aware. It is when things are intensified as in a feedlot when things get nasty, a transient infection of BVD doesn't make them sick but lowers their immunity so the causative agents of BRD get a free reign and that is the problem.</p><p>Also back on the farm a PI amongst breeding females especially heifers with no immunity is when you get abortions and those that do hang onto the calf at the right gestation period will produce a PI calf. The heifer/cow will be completely back to normal for the following year though.</p><p></p><p>Ken</p></blockquote><p></p>
[QUOTE="wbvs58, post: 1753489, member: 16453"] Yes when you buy cattle in all the time you are certainly incurring biosecurity risks no matter how carefull you are. An obviously sick one like this is probably no greater risk than an apparently healthy one. PI's can be poor doers like this or can be top show cattle. The following is not addressed to you Katpau as you seem aware of the situation. Young cattle such as steers and heifers before joining out on grazing are a very low risk with a PI amongst them. Most will get BVD and get over it completely with immunity without you even being aware. It is when things are intensified as in a feedlot when things get nasty, a transient infection of BVD doesn't make them sick but lowers their immunity so the causative agents of BRD get a free reign and that is the problem. Also back on the farm a PI amongst breeding females especially heifers with no immunity is when you get abortions and those that do hang onto the calf at the right gestation period will produce a PI calf. The heifer/cow will be completely back to normal for the following year though. Ken [/QUOTE]
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