| 英文描述 | Mange in swine is caused by the burrowing mite SARCOPTES SCABIEI VAR SUIS. The most important ectoparasite of swine. Often in a herd but not recognized. Up to 50% of herds in the United States may be infested. Lesions usually start on the head, around the eyes, nose, or ears, then can spread. Can be a chronic mange in a few pigs, or allergic responses in large numbers of pigs due to sarcoptic mite hypersensitivity. Dx by identification of mite, but may be difficult to find. Scrapings must be done under the lesions until living tissue is reached and blood appears. Scrapings are best taken from the ear canal and from chronically affected areas. Most readily found in pigs weighing between 13 and 27 kg. Chronic hyperkeratotic mange is more common in poorly fed animals, and is seen mainly in adults. |
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