Volume 30 Issue 4
Jul.  2009
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ZHU Xiao-jia, LI Lai-xing, Yang Le, WANG Gui-hua. Immune Status to H5N1 Avian Influenza Virus of Bar-headed Geese on Bird Island in Qinghai Lake. Zoological Research, 2009, 30(4): 406-410. doi: 10.3724/SP.J.1141.2009.04406
Citation: ZHU Xiao-jia, LI Lai-xing, Yang Le, WANG Gui-hua. Immune Status to H5N1 Avian Influenza Virus of Bar-headed Geese on Bird Island in Qinghai Lake. Zoological Research, 2009, 30(4): 406-410. doi: 10.3724/SP.J.1141.2009.04406

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

doi: 10.3724/SP.J.1141.2009.04406
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  • Corresponding author: LI Lai-xing
  • Received Date: 2009-04-03
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2009-08-22
  • 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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Immune Status to H5N1 Avian Influenza Virus of Bar-headed Geese on Bird Island in Qinghai Lake

doi: 10.3724/SP.J.1141.2009.04406
    Corresponding author: LI Lai-xing

Abstract: 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.

ZHU Xiao-jia, LI Lai-xing, Yang Le, WANG Gui-hua. Immune Status to H5N1 Avian Influenza Virus of Bar-headed Geese on Bird Island in Qinghai Lake. Zoological Research, 2009, 30(4): 406-410. doi: 10.3724/SP.J.1141.2009.04406
Citation: ZHU Xiao-jia, LI Lai-xing, Yang Le, WANG Gui-hua. Immune Status to H5N1 Avian Influenza Virus of Bar-headed Geese on Bird Island in Qinghai Lake. Zoological Research, 2009, 30(4): 406-410. doi: 10.3724/SP.J.1141.2009.04406

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