Prevalence of Oestrus ovis in small ruminants from the eastern Iberian Peninsula. A long-term study
2023
Garijo Toledo, María Magdalena | Sansano-Maestre, José | Ahuir-Baraja, Ana Elena | Martínez Carrasco-Pleite, Carlos | Alonso de Vega, Francisco Domingo | Llobat, Lola | Ruiz de Ybáñez Carnero, María del Rocío | Facultades, Departamentos, Servicios y Escuelas::Facultades de la UMU::Facultad de Veterinaria
© 2023 Royal Entomological Society. This document is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ This document is the Accepted version of a Published Work that appeared in final form in Medical and Veterinary Entomology. To access the final edited and published work see https://doi.org/10.1111/mve.12634
Show more [+] Less [-]Oestrus ovis is an obligate parasite that causes myiasis in domestic ruminants, being commonly found in the Mediterranean area. From 2009 to 2019 a total of 3476 heads of culling sheep and goats from the Mediterranean coast of Spain were examined for the presence of O. ovis. The total prevalence was 56.3%, significantly higher in sheep than in goats (61.2% and 43%, respectively). Differences were found in the mean annual prevalence, with the highest value being registered in 2018 (61.7%) and the lowest in 2012 (50.3%). Autumn, for sheep, and winter, for goats, were the seasons with the highest number of infested specimens. Temperature, but not rainfall, was found to be associated with prevalence (p < 0.05). Most L1 were found in the anatomic region I (septum, meatus, and ventral conchae), while L2 and L3 were mainly located in regions II (nasopharynx, ethmoid labyrinth, and dorsal conchae), and III (sinuses). The overall intensity was 12.8 larvae per head, significantly higher in sheep (13.3) than in goats (3.5). Our results confirm the high prevalence of O. ovis in sheep and goats in this geographic area over the last decade, with the trend increasing in recent years in association with higher mean temperatures
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