Management practices associated with udder health of first-parity dairy cows in early lactation
| Autor: | Ulf Emanuelson, A.-K. Nyman, A.H. Gustafsson, K. Persson Waller |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Veterinary medicine
Ice calving Cell Count Milking fluids and secretions Animal science Mammary Glands Animal Food Animals Lactation medicine Animals Udder Animal Husbandry Mastitis Bovine Sweden business.industry food and beverages medicine.disease Breed Mastitis medicine.anatomical_structure Multivariate Analysis Herd Regression Analysis Animal Science and Zoology Cattle Female Test Anxiety Scale business Somatic cell count |
| Zdroj: | Preventive veterinary medicine. 88(2) |
| ISSN: | 0167-5877 |
| Popis: | This study aimed at investigating associations between management routines including feeding, housing, and milking around calving, and udder health of first-parity cows in early lactation in Swedish large, high producing, low bulk-milk somatic cell count (SCC) dairy herds housed in free stalls. Seventy-two dairy herds participated and data concerning 1189 first-parity cows calving during the study period (October 2005-January 2006) was collected. Multivariable regression analysis were performed with three different outcomes; within-herd number of first-parity cows veterinary treated for clinical mastitis at days -10 to 60 after calving, within-herd number of first-parity cows with a SCCor =200,000cells/mL at first test-day, and SCC of first-parity cows at first test-day. Cow factors significantly associated with good udder health of first-parity cows (few cases of clinical mastitis and or low SCC) were being of the Swedish Red breed, having a high milk yield at first test-day, and a milk-ureaor =5mmol/L at first test-day. Herd factors significantly associated with good udder health were having mattresses as flooring in the cubicles in the lactating cow housing, and to house the first-parity cows in tie stalls 1 month before calving. Cow factors significantly associated with poor udder health of first-parity cows were having a milk-urea4mmol/L at first test-day. Herd factors significantly associated with poor udder health of first-parity cows were feeding first-parity cows sugar-beet pulp or corn silage, and to give silage from a different batch to pregnant heifers than to lactating cows. Moreover, to have sawdust or shavings in the calving pen, to be moved from the calving penor =2 days after calving, to milk first-parity cows at the calving site instead of in the parlor, and to rinse, clean or disinfect milking units before a first-parity cow was milked were also significantly associated with poor udder health of first-parity cows. The results indicate that different control measures must be taken depending on the nature of the udder health problem. |
| Databáze: | OpenAIRE |
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