Observations on the occurrence of <i>Oestrus ovis</i> L. (Dipt., Oestridae) and pleuropneumonia in goats on a dry-zone farm in Ceylon

Ranatunga, Priennie; Rajamahendran, P.

doi:10.1017/s0007485300047477

Cited by 4 publications

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“…The disease is characterised by nasal catarrh, necrosis of mucous membranes of sinuses, formation of neocavities, accumulation of purulent exudates in sinuses and deformation of cartilages in addition to the classical symptoms of nasal irritation (Rajamohanan and Paily, 1971;Gonzalez, I977). It is presumed that O. ovis predisposes to other respiratory infections such as pleuropneumonia (Ranatunga and Rajamahendran, 1972). In man O. ovis larvae produce conjunctivitis (Ilsar, 1975) and even corneal opacity leading to blindness (Bishopp and Philip, 1952).…”

Section: Introductionmentioning

confidence: 99%

Epidemiology ofOestrus ovis infection of sheep in Morocco

Pandey

Ouhelli

1984

Trop Anim Health Prod

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The epidemiology of Oestrus ovis was studied by two methods, slaughterhouse survey and tracer lambs study. The prevalence of infection varied from 10 to 100%, the highest being between June and September and the lowest in March. The mean annual larval burden was 6.7. The maximum number of larvae recovered from a single head was 35 in the month of September. Two larval peaks were observed, the first in May and June and the second in September and October. The flies are absent from December to March. The first generation flies appear in April and up to four generations may occur during the year. During the hottest month of the year (August) flies are either absent or in negligible numbers. During winter the perpetuation of species is ensured by the overwintering larvae in the heads of sheep and the pupae on the ground.

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Section: Introductionmentioning

confidence: 99%