First- and third-stage (infective) larvae of Protostrongylus spp. were recovered from the livers of four fetuses of the Rocky Mountain bighorn sheep of Alberta. This record suggests a more cosmopolitan distribution of prenatal infection with lungworms in bighorn sheep than suspected previously.
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1 July 1977
PRENATAL INFECTION OF THE ROCKY MOUNTAIN BIGHORN SHEEP (Ovis c. canadensis) OF ALBERTA WITH THE LUNGWORM Protostrongylus spp.
C. C. GATES,
W. M. Samuel