Chorioptes texanus causing mange in goats: comparison of two therapeutic protocols

Abstract

Out of 34 caprine dermatological cases examined, 12 were detected positive for Chorioptes texanus. Pruritus, alopecia, crusts, thickening, wrinkling, cracks and fissures on legs, axillae, inguinal region and perineal region were the symptoms noticed in caprine chorioptic mange. In affected animals, reduction in haemoglobin concentration and per cent lymphocytes were noticed, along with elevation in the values of the total leukocyte count, per cent neutrophils and per cent monocytes. Values of serum glucose, zinc and copper were normal. All the 12 cases were treated with ivermectin at 10 days interval till two consecutive skin scrapings were negative for mites. In addition, all goats were treated with vitamin A supplements throughout the period. Six goats were treated topically with permethrin spray while other six animals were treated topically with lime sulphur spray. Both treatment protocols caused recovery of the animals from clinical symptoms, however, a skin scraping after 1 year revealed the presence of mites.

Is Chorioptes texanus to Displace Chorioptes bovis? Notes on the Mites Causing Bovine Chorioptic Mange in Central Europe

“…Apart from causing mange in cattle, C. texanus mites have been identified as parasites of goats in Texas, USA [43,44], Java, Indonesia [45]; putatively, as per Hirst [44] and von Maydell [46]), Malaysia [47], and India [48]; of sheep in Brazil [49]; and of Formosan serows (Capricornis swinhoei) from Taiwan [50]. Interestingly, all records of C. texanus in non-bovine hosts were exclusively made in warmer climate regions while C. texanus infestation of cattle was reported from both regions with warmer climate (Brazil; Israel; southern China; South Korea; southern prefectures of Japan) and temperate regions (British Columbia, Canada; Wisconsin, USA; Austria; France; Germany; Switzerland; Norway; Moscow region, Russia; Hokkaido and Yamagata prefectures, Japan) (Table 1).…”