Risk factors associated with subclinical mastitis in dairy cows on Swiss organic and conventional production system farms

@inproceedings{Doherr2007RiskFA,
  title={Risk factors associated with subclinical mastitis in dairy cows on Swiss organic and conventional production system farms},
  author={Marcus G. Doherr and Markus Roesch and Walter Sch{\"a}ren and M. Schallibaum and J{\"u}rg W. Blum},
  year={2007}
}
Epidemiological studies comparing risk factors for subclinical mastitis (SM) in organic (OP) and conventional dairy production systems (CP) are lacking. In 60 OP and 60 CP farms, 970 cows were used to study risk factors for SM at 31 days postpartum. Cows showing a positive (≥ 1+) California Mastitis Test (CMT) in at least one quarter, but without clinical symptoms, were classified SM-positive. For OP cows increased (P < 0.05) odds ratios (OR) for SM were found for other than Simmental and… CONTINUE READING

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