首页   按字顺浏览 期刊浏览 卷期浏览 Effects of experimental infection of fowl with EDS'76 virus, infectious bronchitis viru...
Effects of experimental infection of fowl with EDS'76 virus, infectious bronchitis virus and/or fowl adenovirus on laying performance

 

作者: J. H. H. van Eck,  

 

期刊: Veterinary Quarterly  （Taylor Available online 1983）
卷期: Volume 5, issue 1  

页码: 11-25

 

ISSN:0165-2176

 

年代: 1983

 

DOI:10.1080/01652176.1983.9693868

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

Following BCI4 (EDS'76) virus infection of brown layer hens at 33 weeks of age, production of normally shelled eggs dropped from 87 per cent to 49 per cent within 3 weeks. The production of soft shelled and shell‐less eggs attained a maximum of 33 per cent 3 weeks after infection (p.i.). Shell quality recovered completely within 5 weeks p.i.

 

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