Factors in Dry Period Associated with Intramammary Infection and Subsequent Clinical Mastitis in Early Postpartum Cows

摘要: The objective of this study was to determine cow characteristics and farm management factors during the dry period associated with early postparturient intramammary infection (IMI) subsequent clinical mastitis (CM). Data were collected three times: before drying off (P1), (P2), 5 14 days after calving (P3), using questionnaires investigation. Milk samples aseptically for bacterial identification at P1 P3. Factors IMI CM analyzed multiple logistic regression models. final model showed that in postpartum significantly full insertion antibiotic, cows barns a combination tie free stalls, body condition score (BCS) calving, milk yield off. For cows, expression having daily barn cleaning, teat disinfected alcohol administration therapy, BCS off, In conclusion, both are rate signs cows.