Oestrus ovis is commonly known as sheep nasal bot fly, an obligate parasite which causes nasal-sinusal myiasis in small ruminants called as oestrosis. The parasite causes huge economic losses to the meat industry. The study was conducted to determine the prevalence of the parasite in sheep heads in so far less explored areas of Jammu region. The study found a high overall prevalence rate of 99....

The sheep nasal bot, Oestrus ovis (Diptera: Oestridae), is a cosmopolitan parasite commonly found in sheep and occasionally goats. Rarely a bot will migrate into the sheep brain (false gid). Following the complaint of an animal husbandman about high mortality rate in a sheep herd, the herd was clinically, hematologically, and pathologically examined exactly. Clinical, hematological, and patholo...

The heads of 139 slaughtered sheep were examined with the aim of determining Oestrus ovis prevalence and infestation intensity in the central region of the State of São Paulo, Brazil. Heads from slaughtered sheep were examined and the first (L1), second (L2) and third (L3) O. ovis larval instars were recovered from the nasal and sinus cavities. O. ovis larvae were detected in 13.7% of the sheep...

Oestrus ovis (L.) (Diptera: Oestridae), the nasal bot fly, has a relatively short free-living life cycle outside of the host, and therefore it is necessary to know when the parasitic period occurs in order to prevent the clinical signs and economic losses caused by this parasite. The length of this parasitic portion of the life cycle is quite variable: a few weeks to several months depending on...

Excretory-secretory products (ESP) of myiasis producing agents are involved in nutrition and development of larvae and are often immunogens. This study was carried out in order to define the antigenicity, the immunogenicity of Oestrus ovis ESP and the role of sheep immune response to ESP. Twenty-four six to eight month old female lambs were randomly allocated into two groups. The first one was ...

Hidalgo A., Palma H., Oberg C. & Fonseca-Salamanca F. 2015. Oestrus ovis infection of grazing sheep during summer in southern Chile. Pesquisa Veterinária Brasileira 35(6):497-500. Laboratorio de Inmunoparasitología Molecular, BIOREN-CEGIN, Unidad de Parasitología, Departamento de Ciencias Preclínicas, Universidad de La Frontera, Casilla 54 D, Avda. Alemania 0458, Temuco, Chile. E-mail: jose.hid...

Following the publication of a paper on Conjonctival human myiasis by Oestrus ovis in southern Tunisia by Anane and Ben Hssine (Bull Soc Pathol Exot (2010) 103(5):299-304), the author reminds that the discovery of this disease was made in Algeria, in 1907 by Edmond and Etienne Sergent.

Oestrus ovis, the nasal bot fly which infests the nasal cavities and sinuses of sheep and goats with its larvae, is endemic in many parts of southern Africa (Bedford, 1925; Horak, 1977; Reinecke, Kirkpatrick, Swart, Kriel & Frank, 1987; Biggs & Anthonissen, 1982). According to Bedford (1925), flies of 0. ovis are active in South Africa from SeptemberMay, while Zumpt (1965) states that spring an...

External ophthalmomyiasis, usually caused by the sheep nasal bot fly, Oestrus ovis L., is characteristically a benign disorder in humans, but may rarely cause severe complications. It occurs on most of the inhabited Hawaiian islands, and is more common than indicated by previously published reports. A typical case is presented along with the fly's life cycle, clinical features, and management.