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Reduction in oviposition of poultry red mite (Dermanyssus gallinae) in hens vaccinated with recombinant akirin

AuthorsLima-Barbero, José Francisco; Contreras, Marinela; Bartley, Kathryn; Price, Daniel R.G.; Nunn, Francesca; Sánchez Sánchez, Marta; Prado, Eduardo; Höfle, Ursula ; Villar, Margarita ; Nisbet, Alasdair J.; Fuente, José de la
Poultry red mite
Issue Date2019
PublisherMultidisciplinary Digital Publishing Institute
CitationVaccines 7(3): 121 (2019)
AbstractThe poultry red mite (PRM), Dermanyssus gallinae, is a hematophagous ectoparasite of birds with worldwide distribution that causes economic losses in the egg-production sector of the poultry industry. Traditional control methods, mainly based on acaricides, have been only partially successful, and new vaccine-based interventions are required for the control of PRM. Vaccination with insect Akirin (AKR) and its homolog in ticks, Subolesin (SUB), have shown protective efficacy for the control of ectoparasite infestations and pathogen infection/transmission. The aim of this study was the identification of the akr gene from D. gallinae (Deg-akr), the production of the recombinant Deg-AKR protein, and evaluation of its efficacy as a vaccine candidate for the control of PRM. The anti-Deg-AKR serum IgY antibodies in hen sera and egg yolk were higher in vaccinated than control animals throughout the experiment. The results demonstrated the efficacy of the vaccination with Deg-AKR for the control of PRM by reducing mite oviposition by 42% following feeding on vaccinated hens. A negative correlation between the levels of serum anti-Deg-AKR IgY and mite oviposition was obtained. These results support Deg-AKR as a candidate protective antigen for the control of PRM population growth.
Publisher version (URL)https://doi.org/10.3390/vaccines7030121
Appears in Collections:(IREC) Artículos
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