Astroviruses in Polish commercial turkey farms in 2009-2012
PBN-AR
Instytucja
Państwowy Instytut Weterynaryjny - Państwowy Instytut Badawczy
Informacje podstawowe
Główny język publikacji
en
Czasopismo
AVIAN DISEASES
ISSN
0005-2086
EISSN
1938-4351
Wydawca
AMER ASSOC AVIAN PATHOLOGISTS
DOI
URL
Rok publikacji
2014
Numer zeszytu
1
Strony od-do
158-164
Numer tomu
58
Identyfikator DOI
Liczba arkuszy
Słowa kluczowe
en
astroviruses
turkey
occurrence
statistics
molecular epidemiology
Streszczenia
Język
en
Treść
Avian astrovirus infections are widespread in many countries, and infections have been connected with enteritis and increased mortality in young birds. In the present study, fecal samples were collected during 2009–2012 from a total of 156 meat turkey flocks. Astrovirus presence and type differentiation was performed with the use of two molecular diagnostic approaches. Out of 156 flocks, 48.7% were found to be TAstV positive. Depending on the method used for type differentiation, TAstV-2 and TAstV-1 prevalence was between 31.4%–41% and 9.6%–15.4%, respectively. No avian nephritis virus was detected. About 30% of astrovirus-positive flocks were infected with both types of TAstV. Phylogenetic analysis based on the partial polymerase gene sequence revealed the genetic variability of isolated TAstV, and most of the detected TAstV-2 belonged to the European lineage of astroviruses. Statistical analysis suggested the positive but weak correlation between the presence of astrovirus and health status (slightly more frequent detection of TAstV in sick, diarrheic birds) and also negative medium correlation between age and astrovirus occurrence.
Cechy publikacji
praca doświadczalna
Inne
System-identifier
553623
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