以印度克什米尔-喜马拉雅地区发现的首个记录的反刍动物蝇蛆病病原——巨头金蝇（fabicius）为研究对象，揭示羊蝇蛆科（昆虫纲：双翅目）在绵羊蝇蛆病中的致病作用

IF 1.4 Q3 PARASITOLOGY

Veterinary parasitology, regional studies and reports Pub Date : 2025-06-14 DOI:10.1016/j.vprsr.2025.101298

Tanveer Ahmad Dar, Altaf Hussain Mir

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引用次数: 0

摘要

目的蝇类是绵羊创伤性蝇蛆病的常见病因，是指蝇类幼虫寄生在脊椎动物活体组织中，严重威胁脊椎动物的健康。在本研究中，在克什米尔喜马拉雅地区的不同地区进行了调查，以记录由蝇蛆病引起的绵羊发病率和流行率。方法在选定的研究地点，特别是在游牧民密度较高的地区进行季节性调查。检查羊的伤口是否有胭脂虫幼虫。用刷子和镊子从疫区收集与蝇蛆病相关的蝇幼虫，并在90%乙醇中保存以供实验室研究。结果共对6441只羊进行了蝇类侵害调查，其中有220只羊携带蝇类幼虫。母羊（79.09%）易感程度高于公羊（20.90%）。绵羊蝇蛆病的发病率和流行程度具有季节特异性，秋季发病率最高，夏季次之，春季和冬季均无蝇蛆病发生。造成这种情况的幼虫为巨头金蝇（Fabricius, 1794）和丝光Lucilia sericata （Meigen, 1826）的3龄幼虫。在印度首次记录了巨头金蝇（Fabricius）作为绵羊蝇病的病原体。还调查了季节和选定地点的可预测死亡率。结论本研究是喀什米尔-喜马拉雅地区首次对绵羊中致蝇类，特别是致蝇科致蝇类信息进行整理的研究，为进一步开展致蝇类问题的研究和管理提供了依据。

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Unravelling the role of Calliphoridae (Insecta: Diptera) as a causative agent of myiasis in sheep with Chrysomya megacephala (Fabricius) as the first documented agent of myiasis in ruminants from Kashmir Himalaya, India

Purpose

Calliphorid flies commonly cause traumatic myiasis in sheep, which refers to the parasitic infestation by fly larvae in living vertebrate tissues and hence poses a great threat to the well-being of vertebrates. In the present study, surveys were carried out in different regions of the Kashmir Himalaya to document the incidence and prevalence caused by myiasis in sheep.

Methods

Seasonal surveys were conducted at the selected study locations, especially in the areas with a high density of nomadic herding. The wounds of the sheep were examined for the presence of calliphorid larvae. The fly larvae associated with myiasis were collected from the infested regions with the help of a brush and forceps and preserved in 90 % ethanol for laboratory studies.

Results

During the present study, a total of 6441 sheep were screened for the infestation of calliphorids (blowflies) out of which 220 were found harbouring the fly larvae. The ewes (79.09 %) were found more susceptible than males (20.90 %). The incidence and prevalence of myiasis in sheep showed seasonal specificity, with the highest rate in autumn followed by summer, whereas no case of myiasis was recorded in spring and winter. The larvae causing this condition were identified as 3rd instar larvae of Chrysomya megacephala (Fabricius, 1794) and Lucilia sericata (Meigen, 1826). Chrysomya megacephala (Fabricius) has been documented for the first time in India as the causative agent of myiasis in sheep. Predictable mortality rate among the seasons and selected sites was also investigated.

Conclusion

The present work is one of the first kind of studies from Kashmir Himalaya compiling information on myiasis-causing flies in sheep, particularly those in the Calliphoridae, and this study will act as a roadmap for further studies on the issue and its management.

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来源期刊

Veterinary parasitology, regional studies and reports Multiple-

CiteScore

2.90

自引率

7.10%

发文量

126

审稿时长

97 days

期刊介绍： Veterinary Parasitology: Regional Studies and Reports focuses on aspects of veterinary parasitology that are of regional concern, which is especially important in this era of climate change and the rapid and often unconstrained travel of people and animals. Relative to regions, this journal will accept papers of the highest quality dealing with all aspects of disease prevention, pathology, treatment, epidemiology, and control of parasites within the field of veterinary medicine. Also, case reports will be considered as they add to information related to local disease and its control; such papers must be concise and represent appropriate medical intervention. Papers on veterinary parasitology from wildlife species are acceptable, but only if they relate to the practice of veterinary medicine. Studies on vector-borne bacterial and viral agents are suitable, but only if the paper deals with vector transmission of these organisms to domesticated animals. Studies dealing with parasite control by means of natural products, both in vivo and in vitro, are more suited for one of the many journals that now specialize in papers of this type. However, due to the regional nature of much of this research, submissions may be considered based upon a case being made by the author(s) to the Editor. Circumstances relating to animal experimentation must meet the International Guiding Principles for Biomedical Research Involving Animals as issued by the Council for International Organizations of Medical Sciences (obtainable from: Executive Secretary C.I.O.M.S., c/o W.H.O., Via Appia, CH-1211 Geneva 27, Switzerland).