Risk factors associated with subclinical mastitis in dairy cows on Swiss organic and conventional production system farms
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...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2007-11-01
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| Series: | Veterinární Medicína |
| Subjects: | |
| Online Access: | https://vetmed.agriculturejournals.cz/artkey/vet-200711-0003_risk-factors-associated-with-subclinical-mastitis-in-dairy-cows-on-swiss-organic-and-conventional-production-sy.php |
| _version_ | 1797897729550057472 |
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| author | M.G. Doherr M. Roesch W. Schaeren M. Schallibaum J.W. Blum |
| author_facet | M.G. Doherr M. Roesch W. Schaeren M. Schallibaum J.W. Blum |
| author_sort | M.G. Doherr |
| collection | DOAJ |
| description | 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 Simmental × Red Holstein breeds, for increasing number (> 27) of cattle on the farm, for the use of mineral feed supplements, for irregular milking intervals (< 12 and > 12 h/day), and for milk urea concentrations of 210.1-270 mg/dl, whereas decreased OR for SM were recorded for cows kept in barns on beddings other than on rubber mats or concrete, for farms with rinsing water temperatures of milking systems between 54.75 and 60°C, for milk lactose > 50.5 g/l, and for blood albumin levels of ł 38.5 g/l. For cows on CP farms, increased (P < 0.05) OR for SM were found for other than Simmental ´ Red Holstein and Simmental breeds, for a bedding area width of > 117 cm, and for antibiotic mastitis treatment since the last dry period, whereas reduced (P < 0.05) OR for SM were found for farms with a moderate (in contrast to good) hygiene status and for routine application of antibiotics during the dry period. Observed differences between OP and CP were assumed to be partially related to system-specific management, such as antibiotic dry cow therapy, nutrition and milking routine. |
| first_indexed | 2024-04-10T08:01:54Z |
| format | Article |
| id | doaj.art-73de8ce6e5be451a9c108b4980f4ab58 |
| institution | Directory Open Access Journal |
| issn | 0375-8427 1805-9392 |
| language | English |
| last_indexed | 2024-04-10T08:01:54Z |
| publishDate | 2007-11-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Veterinární Medicína |
| spelling | doaj.art-73de8ce6e5be451a9c108b4980f4ab582023-02-23T03:49:28ZengCzech Academy of Agricultural SciencesVeterinární Medicína0375-84271805-93922007-11-01521148749510.17221/2060-VETMEDvet-200711-0003Risk factors associated with subclinical mastitis in dairy cows on Swiss organic and conventional production system farmsM.G. Doherr0M. Roesch1W. Schaeren2M. Schallibaum3J.W. Blum4Department Clinical Veterinary Medicine, Vetsuisse Faculty, University of Bern, Bern, SwitzerlandInstitute of Animal Genetics, Nutrition and Housing, Vetsuisse Faculty, University of Bern, Bern, SwitzerlandAgroscope Liebefeld-Posieux (ALP) Research Station for Animal Production and Dairy Products, Liebefeld-Bern, SwitzerlandAgroscope Liebefeld-Posieux (ALP) Research Station for Animal Production and Dairy Products, Liebefeld-Bern, SwitzerlandInstitute of Animal Genetics, Nutrition and Housing, Vetsuisse Faculty, University of Bern, Bern, SwitzerlandEpidemiological 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 Simmental × Red Holstein breeds, for increasing number (> 27) of cattle on the farm, for the use of mineral feed supplements, for irregular milking intervals (< 12 and > 12 h/day), and for milk urea concentrations of 210.1-270 mg/dl, whereas decreased OR for SM were recorded for cows kept in barns on beddings other than on rubber mats or concrete, for farms with rinsing water temperatures of milking systems between 54.75 and 60°C, for milk lactose > 50.5 g/l, and for blood albumin levels of ł 38.5 g/l. For cows on CP farms, increased (P < 0.05) OR for SM were found for other than Simmental ´ Red Holstein and Simmental breeds, for a bedding area width of > 117 cm, and for antibiotic mastitis treatment since the last dry period, whereas reduced (P < 0.05) OR for SM were found for farms with a moderate (in contrast to good) hygiene status and for routine application of antibiotics during the dry period. Observed differences between OP and CP were assumed to be partially related to system-specific management, such as antibiotic dry cow therapy, nutrition and milking routine.https://vetmed.agriculturejournals.cz/artkey/vet-200711-0003_risk-factors-associated-with-subclinical-mastitis-in-dairy-cows-on-swiss-organic-and-conventional-production-sy.phpsubclinical mastitisorganic farmsrisk factorscows |
| spellingShingle | M.G. Doherr M. Roesch W. Schaeren M. Schallibaum J.W. Blum Risk factors associated with subclinical mastitis in dairy cows on Swiss organic and conventional production system farms Veterinární Medicína subclinical mastitis organic farms risk factors cows |
| title | Risk factors associated with subclinical mastitis in dairy cows on Swiss organic and conventional production system farms |
| title_full | Risk factors associated with subclinical mastitis in dairy cows on Swiss organic and conventional production system farms |
| title_fullStr | Risk factors associated with subclinical mastitis in dairy cows on Swiss organic and conventional production system farms |
| title_full_unstemmed | Risk factors associated with subclinical mastitis in dairy cows on Swiss organic and conventional production system farms |
| title_short | Risk factors associated with subclinical mastitis in dairy cows on Swiss organic and conventional production system farms |
| title_sort | risk factors associated with subclinical mastitis in dairy cows on swiss organic and conventional production system farms |
| topic | subclinical mastitis organic farms risk factors cows |
| url | https://vetmed.agriculturejournals.cz/artkey/vet-200711-0003_risk-factors-associated-with-subclinical-mastitis-in-dairy-cows-on-swiss-organic-and-conventional-production-sy.php |
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