| 摘要: |
| 1995～1997年对陕西省11个县(市、区)的养鸡场(户)进行了MD流行病学调查。结果表明, 13个品种588个鸡群中有199群发生了MD,发病鸡群占33. 8%;MD临床表现与鸡的品系有明显相关性; 199个发病鸡群死淘率18. 9% (26397 /139700),其中肉仔鸡群死淘率明显低于蛋用鸡;血清学检查表明,蛋用鸡MD抗体阳性率为15. 6%～58. 3%,MD抗原阳性率为74. 1%～84. 4%,而肉仔鸡MD抗体阳性率为4. 2%～6. 0%,MD抗原阳性率为68. 1%～79. 2%.经HVT疫苗免疫鸡群仍有39. 7%发生了MD。 |
| 关键词: 蛋用鸡，肉仔鸡，马立克氏病，流行病学，琼脂凝胶扩散沉淀试验 |
| DOI： |
| 分类号:S858.310.53 |
| 基金项目: |
|
| An Investigation on the Mareks Disease ofChicken in Shaanxi Province |
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| Abstract: |
| From 1995 to 1997, an epidemiological study on the Mareks Disease of
chicken in 11 counties (or cities) of Shaanxi Province was carried out. 588 flocks of
chicken were surveyed, including 10 hens lines and 3 broiler lines with a total number of
139, 700 chickens. The results showed that the morbidity and mortality were 33. 8%
(199/588) and 18. 9% (26397/139700), respectively.The syndrome was more serious in
broiler lines than in hens lines.The agar gel diffusion precipitation showed that the hens
lines MD antibody positive rates and MD antigen positive rates were 15. 6% -58. 3%
and 74. 1% -84. 4%,while in broiler lines the MD antibody positive rates and MD antigen positive rates were 4. 2% -6. 0% and 68. 1% -79. 2%, respectively. The flocks of
immuned HVT Mareks Disease of chicken morbidity were 29. 4%. |
| Key words: hens line, broiler line,Mareks Disease of chicken, epidemiology, agar
gel diffusion precipitation (AGP) |
