為了解雞群中I群禽腺病毒（FAdV-I）的流行現狀,，從山東,、黑龍江、吉林等地部分大規(guī)模養(yǎng)雞場采集病料,，進行病毒分離,、PCR鑒定及同源性分析。結果顯示：從76份病料中分離到10株FAdV-I,，分離率為13%,；10株FAdV-I中,，1株為血清4型，6株為血清8b型,，1株為血清9型,，2株為血清11型。結果表明,，山東,、黑龍江、吉林等地均存在一定的FAdV-I流行,，主要流行血清型已由4型轉變?yōu)?/span>8b型，因此需要評估當前的4型滅活苗能否有效防控這些地區(qū)的FAdV-I流行,。

Isolation and Identificationand Homology Analysis on Group I Fowl Adenovirus

In order to recognize the prevalence ofgroup I fowl adenovirus（FAdV-I）in poultry,，samples were collected from several large-scalechicken farms in Shandong，Heilongjiang and Jilin provinces for FAdV isolation,，PCR assay and homology analysis. Resultsshowed that 10 FAdV-I strains were isolated from 76 samples with the positiverate reaching 13%. Among the 10 FAdV-I strains,，1 of them belonged to serotype 4，6 of them belonged to serotype 8b,，1 of them belonged to serotype 9,，and 2 of them belonged to serotype 11. Theresults indicated that certain FAdV-I infection existed in Shandong，Heilongjiang and Jilin provinces,，and the main serotypes had been transferredfrom serotype 4 to serotype 8b,，thus the current serotype 4 inactivated vaccines need to be evaluatedto determine if they could control the spread of FAdV-I effectively.

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