Mycobacterium bovis Survivability in Salt/Minerals Fed to Cattle. John B. Kaneene , DVM, MPH, PhD Joseph Hattey , MS Carol Bolin, DVM, PhD James Averill, DVM, PhD. Introduction.
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Survivability in Salt/Minerals
Fed to Cattle
John B. Kaneene, DVM, MPH, PhD
Joseph Hattey, MS
Carol Bolin, DVM, PhD
James Averill, DVM, PhD
To determine the survivability of M. bovis on salt and mineral blocks over time under normal weather conditions over a 12 month period
Longitudinal Experimental Design
Samples are taken from the top face of the salt block using sterilized scouring pads on a specified schedule.
Sample Collection Schedule
Four Plain Salt and Four Mineral Blocks were used
Pure cultures of M. bovis and M. fortuitum were applied to the surfaces and kept outdoors in BL-3 confinement cages for a year
Samples from the block surfaces were collected at specified intervals and tested for the presence of the organisms
Michigan Department of Agriculture and Rural Development
Center for Comparative Epidemiology, Michigan State University