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Chorioptic mange mites in Sheep and Goats

Chorioptic mange in sheep and goats is due to the mite CHORIOPTES BOVIS. In goats signs can start at the neck then spread to the back, root of the tail, and rest of the body. 'Foot mange' affects the skin of the feet and legs especially in the pasterns and digital areas. Chorioptic mange of the scrotum is suspected to cause infertility in rams. Eradicated from sheep in the U.S. Chorioptes caprae infest the skin of the lower leg. Itchiness may be noticed and there may be small crusty scabs.

Female in phase-contrast microscopy.

Additional information

Chorioptes is host-specific. The life cycle is 2 to 3 weeks, it won’t survive off the host longer than a day.

Female in phase-contrast microscopy. Females have suckers on legs 1, 2 and 4.The fourth legs are long, those of the male are short. Chorioptes mites, which are surface-inhabiting parasites found principally on the feet of domesticated animals, produce chorioptic mange, a common cause of dermatitis in cattle, sheep, goats, and occasionally horses in most parts of the world.
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