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The administration of from 5, 000 to 132, 000 larvae of Dictyocaulus viviparus to 29 hand reared calves produced symptoms of parasitic bronchitis but only one calf died. Four calves running with their dams also became infected when given viable larvae. Various chemotherapeutic agents were used on...

Swanson, L. E.; Wade, A. E.; Dennis, W. R.; Stone, W. M., Jr.
Annual Report Agricultural Experimental Station University Florida 1956, 1957, pp 143-144