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| Virtala, Anna-Maija; Holma, Ulla; Hänninen, Marja-Liisa; Hyyrynen, Tuula; Hovi, Malla; Kahiluoto, Helena; Rossow, Laila; Valros, Anna. |
| A total of 20 organic layer flocks (in excess of 80 % of all Finnish organic egg producers that sell eggs to consumers through egg packaging companies or food shops) were visited in 2003 and 2004. Information about the farms was collected through faecal samples, mite traps and by interviewing the producer, using a semi-structured interview guide. Additionally, 38 dead hens from 12 farms were examined pathologically and for parasites through post mortem. The descriptive results are presented. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Health and welfare. |
| Ano: 2005 |
URL: http://orgprints.org/4494/4/Virtala_etal_4p_revised%2Ded.doc |
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