Publications
effect of intranasal exposure to leukotoxin-deficient mannheimia haemolytica at the time of arrival at the feedyard on subsequent isolation of m haemolytica from nasal secretions of calves. | to determine the effect of intranasal exposure to live leukotoxin (lkta)-deficient mannheimia haemolytica (mh) at the time of feedyard arrival on nasopharyngeal colonization by wild-type mh in calves. | 2003 | 12755298 |