Gasterophilus intestinalis infections in horses in Belgium
- PMID: 9746291
- DOI: 10.1016/s0304-4017(98)00106-x
Gasterophilus intestinalis infections in horses in Belgium
Abstract
Over a period of one year, from December 1995 to November 1996, larvae of Gasterophilus intestinalis were found in 193 horse stomachs (58%) of 330 that were examined in two Belgian slaughter houses. When August is excluded, 62% of the stomachs had bot larvae. No other Gasterophilus species were identified. The monthly prevalence ranged from 9% in August to 75% in November and December. The mean intensity of bot larvae varied from 8 in August to 29 in March, and the majority of the horses (67%) harboured less than 50 larvae. Prevalences and intensities were not affected by age, but mares were more frequently infected than stallions and geldings (P < 0.014). The mean size of the lesions increased from 1 cm2 to 17 cm2. The majority of the larvae were localised near the margo plicatus.
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