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| Jorgensen, K. F.; Kjeldsen, A.M.; Strudsholm, F.; Vestergaard, M.. |
| A data analysis based on the Danish Cattle Data Base shows that organic Holstein-Friesian cows have significantly higher frequencies of liver abscesses (LA) than conventional Holstein-Friesian cows (8% versus 5%). Based on a questionnaire among 91 organic dairy herds, a statistical analysis was made in order to identify which feeding and management factors that were related to the level of LA in the herds. Compared with conventional herds, the feed ration in organic herds had a lower energy and fatty acid level and a higher starch level. During summer season the organic herds had a lower level of digestible cell walls in the ration. Organic herds with a higher grazing level had a higher level of LA (P=0.012). Increasing levels of grain also tended to... |
| Tipo: Proceedings |
Palavras-chave: Health and welfare; Feeding and growth. |
| Ano: 2005 |
URL: http://orgprints.org/5953/1/5953.doc |
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