Naslov
Hepatozoonosis in Golden Jackals (Canis aureus) from Southeastern and Central Europe: prevalence dana from a first molecular screening

Autori
Duscher, Georg ; Ćirović, Duško ; Heltai, Miklos ; Szabo, Laszlo ; Lanszki, Jozsef ; Bošković, Ivica ; Florijančić, Tihomir ; Knauer, Felix ; Suchentrunk, Franz

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
Book of Abstracts of First International Jackal Symposium / Duško, Ćirović - Beograd : Faculty of Biology, University of Belgrade, Serbia, 2014, 70-71

Skup
First International Jackal Symposium

Mjesto i datum
Srbija, 13.10.2014. - 16.10.2014

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Hepatozoon canis ; golden jackal ; Southeast Europe ; molecular screening ; prevalence

Sažetak
Canine hepatozoonosis (infection with Hepatozoon canis, H. americanum, Apicomplexa) is a tick-borne disease not uncommon in dogs and wild canids. For wild canids, however, limited knowledge exists about its potential epidemiological role. We screened 311 golden jackals from Serbia (n=206), Croatia (n=46), Montenegro (n=2), and Hungary (n=57) for infection with H. canis by PCR of liver or skeletal muscle tissue. The overall prevalence rate amounted to 60.6% and infections were detected in 100% of juveniles (n = 2), in 65.5% of subadults (n = 55), and in 65.0%of adults (n = 177). Overall prevalences varied significantly across regions (Serbia = 67.5%, Montenegro = 100%, Croatia = 30.4%, Hungary = 57.9%) and between sexes (males = 58.9%, females = 71.3% ; logistic regression model). For Serbian jackals, logistic general linear models and model averaging revealed a significantly higher prevalence in juveniles and subadults than in adults, with “relative variable importance” (RVI) of age class (JV & SA vs. AD) = 0.90. In Serbian juveniles and subadults the prevalence was lower in males (47.6%) than in females (80.6%). However, there was no significant sex difference in adults (males = 66.3%, females = 71.0%). All the other parameters in the prevalence model for Serbian jackals did not contribute significantly to the variance (RVI: sex = 0.40 ; body weight = 0.37 ; head body length = 0.28 ; season (winter vs. summer) = 0.26 ; local population = 0.21 ; age class/sex interaction = 0.19). Averaging of linear mixed effects models revealed lower body weights particularly in infected males (RVI = 0.82) than in not infected males, when 70 accounting for head body length (RVI = 0.91), season (RVI = 0.85), age class (RVI for age class/sex interaction = 0.74) and local population (RVI = 0.11). Our data indicate generally high prevalences with geographical variation on a larger (Serbia, Croatia, Hungary). In males, infections might lead to a higher mortality rate already early in live compared to females, whereas both genders maintain a similarly high prevalence when adult, possibly indicating equal immune competence.

Izvorni jezik
Engleski

Znanstvena područja
Veterinarska medicina, Poljoprivreda (agronomija)

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