comparison of a multivalent viral vaccine program versus a univalent viral vaccine program on animal health, feedlot performance, and carcass characteristics of feedlot calves.a field study was conducted under commercial feedlot conditions at 2 sites in western canada to determine the relative effects of a univalent viral vaccine (mlv 1) program versus a multivalent viral vaccine (mlv 4) program on animal health; feedlot performance; and carcass characteristic variables of fall-placed, auction market derived, feedlot calves. five thousand one hundred and sixty-three calves were processed and randomly allocated to 1 of 2 experimental groups as follows: mlv 1, which rec ...200312619555
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