摘要
为了解野生水禽对高致病性禽流感病毒(AIV)自然被动免疫状况,于2010—2011年,在大庆龙凤湿地分别采集绿头鸭、须浮鸥、黑翅长脚鹬三种野生水禽巢卵150、184和128枚,采用血凝抑制试验检测H5和H7两种AIV的卵黄抗体。结果表明,绿头鸭H5和H7亚型禽流感卵黄抗体的阳性率分别为53.33%和14.67%,平均卵黄抗体滴度分别为4.55和3.45(log2);须浮鸥H5和H7亚型禽流感卵黄抗体的阳性率分别为34.78%和11.96%,平均卵黄抗体滴度分别为3.78和3.18(log2);黑翅长脚鹬H5和H7亚型禽流感卵黄抗体的阳性率分别为31.25%和9.38%,平均卵黄抗体滴度分别为3.85和3.67(log2)。由此可见,野生水禽种群对于高致病性禽流感的接触情况是较为频繁的,提示需要进一步加强对其种群的病毒携带情况进行监测。
In order to understand natural passive immunity to Avian Influenza （AI） of birds within Long-feng wetland, 150, 184 and 128 in-nest eggs of Mallard, Whiskered Tern and Black-necked Stilt were collected around 2010-2011, and the antibodies in the yolk of H5, H7 subtype AIV were tested by using hemagglutination inhibition test. The results showed that the antibody of HS, H7 in the yolk positive rates in Mallard was 53.33%, 14.67%, and that the average antibody titers were 4.55 （log2） and 3.45 （log2）, respectively. In Whiskered Tern, the antibody of H5, H7 in the yolk positive rates was 34.78%, 11.96%, and that the average antibody titers were 3.78 （log2） and 3.18 （log2）, respectively. The antibody of HS, H7 in the yolk positive rates in Black-necked Stilt was 31.25%, 9.38%, and that the average antibody titers were 3.85 （log2） and 3.67 （log2）, respectively. Therefore, contagious infection was frequent between the waterfowl with H5, H7 subtype AIV, so it is essential to investigating for the state of virus being carried by waterfowl.
出处
《畜禽业》
2013年第6期60-61,共2页
Livestock and Poultry Industry
关键词
野生水禽
高致病性禽流感
卵黄抗体
血凝抑制
wild waterfowl
highly pathogenic avian influenza （HPAI）
yolk antibody
hemagglutination inhibition （HI）
作者简介
宋晓东（1967-），男，高级畜牧师．硕士。从事野生动物饲养与管理
