Establishment of Pathogen-Free <i>Rhipicephalus bursa</i> Colonies Under Laboratory Conditions for the Vector Competence Studies

<i>Rhipicephalus bursa</i>, the primary vector of <i>Babesia ovis</i>, is also considered to transmit <i>Theileria</i>, <i>Babesia</i>, and <i>Anaplasma</i> spp. These claims are based on pathogen detections rather than experimental validat...

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Main Authors: Mehmet Can Ulucesme, Sezayi Ozubek, Munir Aktas
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Veterinary Sciences
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Online Access:https://www.mdpi.com/2306-7381/12/1/54
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author Mehmet Can Ulucesme
Sezayi Ozubek
Munir Aktas
author_facet Mehmet Can Ulucesme
Sezayi Ozubek
Munir Aktas
author_sort Mehmet Can Ulucesme
collection DOAJ
description <i>Rhipicephalus bursa</i>, the primary vector of <i>Babesia ovis</i>, is also considered to transmit <i>Theileria</i>, <i>Babesia</i>, and <i>Anaplasma</i> spp. These claims are based on pathogen detections rather than experimental validation. To confirm vector competence, sterile ticks must acquire pathogens from infected hosts and transmit them to other hosts. The basic step is establishing a pathogen-free tick colony. In this study, engorged <i>R. bursa</i> females were collected from 12 infested livestock and allowed to lay eggs. The carcasses and larvae were screened for tick-borne pathogens using nPCR. The 0.150 g pathogen-free F1 larvae were fed on New Zealand rabbits, resulting in 592 engorged nymphs that molted into F1 adults. Eighty F1 adults were fed on pathogen-free splenectomized sheep, producing the next larval generation (F2). This protocol was repeated to produce F3 larvae. At the end of all developmental stages, ticks were screened via nPCR and found to be negative for tick-borne pathogens. The sheep were monitored for 63 days with no clinical signs or positive nPCR results, confirming F3 larvae as pathogen-free and suitable for vector competence studies. The <i>R. bursa</i> life cycle was completed in 72–153 days, providing a reliable model for vector competence research and offering valuable insights into its biological parameters.
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publishDate 2025-01-01
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series Veterinary Sciences
spelling doaj-art-84225315ff3e44a5934b5b8f9b23ce632025-01-24T13:52:07ZengMDPI AGVeterinary Sciences2306-73812025-01-011215410.3390/vetsci12010054Establishment of Pathogen-Free <i>Rhipicephalus bursa</i> Colonies Under Laboratory Conditions for the Vector Competence StudiesMehmet Can Ulucesme0Sezayi Ozubek1Munir Aktas2Department of Parasitology, Faculty of Veterinary Medicine, University of Fırat, Elazığ 23200, TürkiyeDepartment of Parasitology, Faculty of Veterinary Medicine, University of Fırat, Elazığ 23200, TürkiyeDepartment of Parasitology, Faculty of Veterinary Medicine, University of Fırat, Elazığ 23200, Türkiye<i>Rhipicephalus bursa</i>, the primary vector of <i>Babesia ovis</i>, is also considered to transmit <i>Theileria</i>, <i>Babesia</i>, and <i>Anaplasma</i> spp. These claims are based on pathogen detections rather than experimental validation. To confirm vector competence, sterile ticks must acquire pathogens from infected hosts and transmit them to other hosts. The basic step is establishing a pathogen-free tick colony. In this study, engorged <i>R. bursa</i> females were collected from 12 infested livestock and allowed to lay eggs. The carcasses and larvae were screened for tick-borne pathogens using nPCR. The 0.150 g pathogen-free F1 larvae were fed on New Zealand rabbits, resulting in 592 engorged nymphs that molted into F1 adults. Eighty F1 adults were fed on pathogen-free splenectomized sheep, producing the next larval generation (F2). This protocol was repeated to produce F3 larvae. At the end of all developmental stages, ticks were screened via nPCR and found to be negative for tick-borne pathogens. The sheep were monitored for 63 days with no clinical signs or positive nPCR results, confirming F3 larvae as pathogen-free and suitable for vector competence studies. The <i>R. bursa</i> life cycle was completed in 72–153 days, providing a reliable model for vector competence research and offering valuable insights into its biological parameters.https://www.mdpi.com/2306-7381/12/1/54<i>Rhipicephalus bursa</i>tick colonytick-borne pathogen-freevector competence study
spellingShingle Mehmet Can Ulucesme
Sezayi Ozubek
Munir Aktas
Establishment of Pathogen-Free <i>Rhipicephalus bursa</i> Colonies Under Laboratory Conditions for the Vector Competence Studies
Veterinary Sciences
<i>Rhipicephalus bursa</i>
tick colony
tick-borne pathogen-free
vector competence study
title Establishment of Pathogen-Free <i>Rhipicephalus bursa</i> Colonies Under Laboratory Conditions for the Vector Competence Studies
title_full Establishment of Pathogen-Free <i>Rhipicephalus bursa</i> Colonies Under Laboratory Conditions for the Vector Competence Studies
title_fullStr Establishment of Pathogen-Free <i>Rhipicephalus bursa</i> Colonies Under Laboratory Conditions for the Vector Competence Studies
title_full_unstemmed Establishment of Pathogen-Free <i>Rhipicephalus bursa</i> Colonies Under Laboratory Conditions for the Vector Competence Studies
title_short Establishment of Pathogen-Free <i>Rhipicephalus bursa</i> Colonies Under Laboratory Conditions for the Vector Competence Studies
title_sort establishment of pathogen free i rhipicephalus bursa i colonies under laboratory conditions for the vector competence studies
topic <i>Rhipicephalus bursa</i>
tick colony
tick-borne pathogen-free
vector competence study
url https://www.mdpi.com/2306-7381/12/1/54
work_keys_str_mv AT mehmetcanulucesme establishmentofpathogenfreeirhipicephalusbursaicoloniesunderlaboratoryconditionsforthevectorcompetencestudies
AT sezayiozubek establishmentofpathogenfreeirhipicephalusbursaicoloniesunderlaboratoryconditionsforthevectorcompetencestudies
AT muniraktas establishmentofpathogenfreeirhipicephalusbursaicoloniesunderlaboratoryconditionsforthevectorcompetencestudies