INVESAGA Group, Department of Animal Pathology, Faculty of Veterinary, University Santiago de Compostela, Lugo, Spain.
Departament of Animal Health, Faculty of Veterinary, University of Murcia, Murcia, Spain.
Med Vet Entomol. 2022 Mar;36(1):30-37. doi: 10.1111/mve.12548. Epub 2021 Sep 21.
Wohlfahrtia magnifica (Diptera: Sarcophagidae) is an obligate myiasis-causing fly of livestock that is widely distributed throughout the Mediterranean basin. A total of 73 683 sheep from 122 flocks in Albacete Province (southeastern [SE] Spain) were examined to detect active traumatic myiasis. The influence of several individual and flock factors on the prevalence was also assessed. The overall flock prevalence of traumatic myiasis was 95.9%, with an individual prevalence of 7.1%. Wohlfahrtia magnifica was identified in all of the positive animals except one that was infested by Lucilia sericata (Diptera: Calliphoridae). Adults of both genders showed a higher risk of infestation than juveniles, whereas males of all ages displayed an increased risk of infestation than females of all ages; the existence of a lambing building on the farm, poor husbandry facilities and the location area were also identified as risk factors. Prevalence was highest in the summer, and the fly season lasted from March to November. Genitalia were the main location of infestation in males (94.4%) and females (76.3%). Our results reveal that traumatic myiasis by W. magnifica is widespread in southeastern Spain, hence preventive measures minimizing the attractiveness of sheep to gravid flies are necessary to avoid health and welfare problems and significant production losses in sheep flocks.
华丽原裸蛹蜂（双翅目：麻蝇科）是一种广泛分布在地中海盆地的专性引起家畜创伤性蝇蛆病的蝇。共检查了来自西班牙东南部阿尔瓦塞特省的 122 个羊群的 73683 只绵羊，以检测活动性创伤性蝇蛆病。还评估了几个个体和羊群因素对流行率的影响。创伤性蝇蛆病的总体羊群流行率为 95.9%，个体流行率为 7.1%。除一只被丝光绿蝇（双翅目：丽蝇科）寄生的动物外，所有阳性动物均鉴定为华丽原裸蛹蜂。雌雄成虫的感染风险均高于幼体，而所有年龄段的雄性感染风险均高于所有年龄段的雌性；农场存在产羔房、较差的饲养设施和地理位置也被确定为危险因素。流行率在夏季最高，蝇季从 3 月持续到 11 月。雄性（94.4%）和雌性（76.3%）的主要感染部位是生殖器。我们的结果表明，华丽原裸蛹蜂引起的创伤性蝇蛆病在西班牙东南部广泛流行，因此需要采取预防措施，最大限度地减少羊对孕蝇的吸引力，以避免羊群的健康和福利问题以及重大的生产损失。
