A pilot study on the prevalence of lice in Irish beef cattle and the first Irish report of deltamethrin tolerance in Bovicola bovis.

IF 2.7 2区农林科学 Q1 VETERINARY SCIENCES

Irish Veterinary Journal Pub Date : 2021-07-05 DOI:10.1186/s13620-021-00198-y

Fiona Mckiernan, Jack O'Connor, William Minchin, Edward O'Riordan, Alan Dillon, Martina Harrington, Annetta Zintl

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引用次数: 6

Abstract

Background: Pediculosis in cattle causes significant itching, irritation and stress to the animal, often resulting in skin damage and poor coat condition. The control of bovine pediculosis in Ireland is based predominantly on commercial insecticides belonging to one of two chemical classes, the synthetic pyrethroids and the macrocyclic lactones. In recent years, pyrethroid tolerance has been reported in a number of species of livestock lice in the United Kingdom and Australia.

Results: In this pilot survey, lice were detected in 16 (94%) out of 17 herds visited. Two species of lice, Bovicola bovis and Linognathus vituli were identified. In vitro contact bioassays showed evidence of deltamethrin tolerance in Bovicola bovis collected from 4 farms. This was confirmed by repeatedly assessing louse infestations on treated animals on one farm.

Conclusions: To our knowledge this is the first record of insecticide tolerant populations of lice in Irish cattle. The results also provide new data on the species of lice infesting beef cattle in Ireland and the prevalence and control of louse infestations in Irish beef cattle herds.

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爱尔兰肉牛中虱子流行的试点研究和爱尔兰首次报告Bovicola bovis对溴氰菊酯的耐受性。

背景:牛的弓形虫病会给动物带来明显的瘙痒、刺激和压力，经常导致皮肤损伤和被毛状况不佳。爱尔兰对牛弓形虫病的控制主要基于两种化学类别之一的商业杀虫剂，即合成拟除虫菊酯和大环内酯。近年来，据报道，英国和澳大利亚的一些家畜虱类对拟除虫菊酯具有耐药性。结果:在这次试点调查中，在访问的17个畜群中，有16个(94%)发现了虱子。鉴定出牛虱和羊虱两种。体外接触生物测定显示，从4个养殖场采集的牛虻对溴氰菊酯具有耐受性。通过反复评估一个农场治疗过的动物身上的虱子感染情况，证实了这一点。结论:据我们所知，这是爱尔兰牛中虱子耐杀虫剂种群的第一次记录。研究结果还为爱尔兰肉牛的虱子种类以及爱尔兰肉牛群中虱子感染的流行和控制提供了新的数据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Irish Veterinary Journal 农林科学-兽医学

CiteScore

4.80

自引率

3.40%

发文量

审稿时长

>36 weeks

期刊介绍： Irish Veterinary Journal is an open access journal with a vision to make a substantial contribution to the dissemination of evidence-based knowledge that will promote optimal health and welfare of both domestic and wild species of animals. Irish Veterinary Journal has a clinical research focus with an emphasis on the effective management of health in both individual and populations of animals. Published studies will be relevant to both the international veterinary profession and veterinary scientists. Papers relating to veterinary education, veterinary ethics, veterinary public health, or relevant studies in the area of social science (participatory research) are also within the scope of Irish Veterinary Journal.