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Masonville, Iowa | Already have had some good responses. It is a RNA virus that attacks the macrophages of cells. Because it is RNA and is single stranded, it can mutate fairly rapidly. This is one of the main reasons that a vaccine has not been easily produced. In finishing pigs, it doesn't generally kill pigs, but it so compromises the immune system that secondary diseases such as circo, myco, APP, strep can overwhelm the pigs. In sows it causes high fevers which can lead to sows aborting litters. Pigs that do make it to birth will be fuzzy and gant and scour terrible. This time of year is environmentally great for the virus. With just a little moisture, it can survive for weeks and even months when it is cold enough. Hot and dry, it only survives outside the pig for a few hours. Lots of sow herds will be PRRS positive, but stable, meaning the sows are not shedding virus and won't pass the virus on to their young.
Sean | |
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- purrs, prs, (spell check?) in hogs - kjzt : 12/18/2010 13:46
- RE: purrs, prs, (spell check?) in hogs - Iowadad : 12/18/2010 15:12
- RE: purrs, prs, (spell check?) in hogs - seth47591 : 12/18/2010 16:22
- Re: purrs, prs, (spell check?) in hogs - Pat H : 12/18/2010 20:04
- RE: purrs, prs, (spell check?) in hogs - seand : 12/20/2010 20:53
- RE: purrs, prs, (spell check?) in hogs - AgJudge : 12/20/2010 21:42
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purrs, prs, (spell check?) in hogs
