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Trop Anim Health Prod (2009) 41:397401 DOI 10.1007/s11250-008-9203-9
ORIGINAL PAPER
Some observations on sheep sarcoptic mange in Tehran province, Iran
S. Rahbari & S. Nabian & A. R. Bahonar
Accepted: 20 June 2008 / Published online: 15 July 2008 # Springer Science + Business Media B.V. 2008
Abstract Sarcoptes scabiei infestation was diagnosed in 278 sheep from 12 fatling flocks. The sheep presented crusted skin lesions initially appear on the lips or nostrils, the lesion on nostrils also extend towards around the eyes, the supraorbital fossae and in some cases over entire face. The infested male lambs by mating behavior in fatling flocks caused transmitting the infection to fat tail area and scrutum. Histopathological study of lesions demonstrated marked acanthosis, hyperkeratosis, parakeratosis. Tunnels could be observed in the hyperkeratotic stratum corneum and mite segments were located mainly in the stratum corneum and also in the stratum granulosum. Attempts to eliminate S. scabiei var. ovis were made in 3 naturally infested sheep herds, by two dippings with two weeks interval with Amitraz, Cypermetrin and Prompetamphos. The results of this study indicate that acaricidal treatment of S. scabiei var. ovis in 3 naturally infested herds was successful,
but a few cases of reinfestation were found in each treated group.
Keywords Sarcoptes scabiei . Mange . Sheep . Acaricide . Iran
Introduction
The history of scabies has extensively described (Friedman 1947; Heilsen 1946; Parish 1985). The varieties of Sarcoptes scabiei are parasitic on a number of different hosts causing a disease known as mange. Animals in overcrowding condition appear to be most susceptible to sarcoptic mange in which the mite spreads often with general mismanagement. The infestation is spread chiefly by direct contact between hosts (Harwood and James 1976). It is reported as a least important parasite in sheep (Abu-Samra et al. 1981), but it is an important disease in cattle (Rehbein et al. 2003), camels (Higgins et al. 1984) and horses (Osman et al. 2006). Amongst domestic animals, pigs are most commonly affected. The first report of sheep sarcoptic mange in Iran was published by Rafyi et al. 1966. The prevalence of mite and lice of sheep and goat was studied by Nadalian et al. 1989 in Tehran province. Recently, Bazargani et al. 2007 described the clinical...