Immune Status to H5N1 Avian Influenza Virus of Bar-headed Geese on Bird Island in Qinghai Lake

The most infected species of H5N1 highly pathogenic avian influenza (HPAI) broke out in Qinghai Lake in 2005 was bar-headed goose ( Anser indicus ). To investigate the immune status to H5N1-AIV of bar-headed geese in Qinghai Lake National Nature Reserve, 68 ejected eggs and 125 in-nest eggs of the b...

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Bibliographic Details
Main Authors: Zhu, Xiao-jia, Li, Lai-xing, Yang, Le, Wang, Gui-hua
Format: Article in Journal/Newspaper
Language:Chinese
Published: Kunming Institute of Zoology, Chinese Academy of Sciences 2010
Subjects:
Bar-headed goose
H5N1 Avian influenza
Yolk
Maternal antibody (MAb); Haemagglutination inhibition (HI); Qinghai Lake
Bird Island
Lake May
Online Access:http://hdl.handle.net/1807/64336
http://www.bioline.org.br/abstract?id=zr09061
http://www.bioline.org.br/zr
http://www.zoores.ac.cn/
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Summary:The most infected species of H5N1 highly pathogenic avian influenza (HPAI) broke out in Qinghai Lake in 2005 was bar-headed goose ( Anser indicus ). To investigate the immune status to H5N1-AIV of bar-headed geese in Qinghai Lake National Nature Reserve, 68 ejected eggs and 125 in-nest eggs of the breeding colony were collected in spring 2008, and haemagglutination inhibition (HI) was applied to analyze their yolk MAb (IgY) to H5N1-AIV. The results revealed, three years after the outbreak of HPAI in 2005, 26.5% to 35.2% of breeding pairs of the bar-headed geese breeding on Bird Island in Qinghai Lake may have acquired anti-H5N1 AIV immunocompetence. In addition, we analyzed the relationship of MAb titers of the nest-eggs and the nest density, and found the significant correlation between them (r=0.736, P=0.000). It is likely to be more adaptive that the MAb transmission pattern in the breeding colony with high breeding density.

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