07-01-2014, 07:26 AM
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#5 |
| Donating YT 10K Club Member
Join Date: Aug 2007 Location: S. W. Suburbs of Chicago, IL
Posts: 12,235
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I'm pretty sure they test yearly for the simple reason that people are not always as compliant as they claim to be.
Here's a little more info: https://www.vet.purdue.edu/vth/sacp/...nsonHWprev.pdf
__________________ “Never argue with a fool, onlookers may not be able to tell the difference.”  Mark Twain |
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