Eggshell Apex Abnormalities in a Free-range Hen Farm with Mycoplasma synoviae and Infectious Bronchitis virus in Rio de Janeiro State, Brazil
A farm with 3,000 free-range hens between 24 and 65 weeks of age was investigated. These hens were separated in small flocks of 400 to 700 birds, presenting 10 to 23% egg production reduction. Twenty serum samples were collected during the period of drop in egg production and three weeks later for t...
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| Udgivet i: | Revista Brasileira de Ciência Avícola |
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| Principais autores: | , , , , , , , |
| Format: | Artigo |
| Sprog: | Inglês |
| Udgivet: |
Fundação APINCO de Ciência e Tecnologia Avícolas
2014
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| Fag: | |
| Online adgang: | https://www.redalyc.org/articulo.oa?id=179731466015 |
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