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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions |
umls-concept:C0007584,
umls-concept:C0022638,
umls-concept:C0024894,
umls-concept:C0204695,
umls-concept:C0205210,
umls-concept:C0205554,
umls-concept:C0337812,
umls-concept:C0453920,
umls-concept:C0597198,
umls-concept:C0748342,
umls-concept:C1257909,
umls-concept:C1547276,
umls-concept:C1553013,
umls-concept:C1707455,
umls-concept:C1880497,
umls-concept:C1996904
|
| pubmed:issue |
2
|
| pubmed:dateCreated |
1997-10-16
|
| pubmed:abstractText |
Differences in ketosis and clinical mastitis rates, mean somatic cell counts (SCC) and reproductive performance scores (fertility status index = FS-index) between herds housed in free stall (n = 533) and tie stall (n = 59) barns were measured in relation to management and environmental factors in a retrospective cohort study of Norwegian dairy farms with automatic grain feeding systems. Herds with tie stalls were found to have a higher clinical mastitis rate, (61.6 cases per 100 cow-years versus 46.4 cases per 100 cow-years (p < 0.01)); a significantly higher proportion of herds with ketosis, (relative risk = 1.59, (p < 0.01)); and a lower mean fertility status index, (67.3 versus 82.8 (p < 0.01)). No significant difference in mean SCC was found between the 2 groups of dairies (p = 0.32). Large herds had higher Loge geometric mean SCC than small herds (p < 0.01) and herds with high SCC had lower milk production than herds with low SCC (p < 0.01). Herds that scored "very good" on cow cleanliness had significantly lower adjusted mean SCC than herds with scores of "average" or "good" (p < 0.05). Herds in barns with a concrete floor had an adjusted mean number of cases of clinical mastitis of 51.4 per 100 cow-years, 14 per cent higher than herds in barns with rubber mats, litter bed or wood (45.2 cases per 100 cow-years) (p < 0.05). Herds with high milk production level had higher FS-index than herds with low milk production (p < 0.01). Lower disease rates and the higher fertility status measured in the present study favor free stall herds over tie stall herds.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:status |
MEDLINE
|
| pubmed:issn |
0044-605X
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
38
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
181-92
|
| pubmed:dateRevised |
2006-11-15
|
| pubmed:meshHeading |
pubmed-meshheading:9257454-Animal Husbandry,
pubmed-meshheading:9257454-Animals,
pubmed-meshheading:9257454-Cattle,
pubmed-meshheading:9257454-Cell Count,
pubmed-meshheading:9257454-Cohort Studies,
pubmed-meshheading:9257454-Confounding Factors (Epidemiology),
pubmed-meshheading:9257454-Dairying,
pubmed-meshheading:9257454-Eating,
pubmed-meshheading:9257454-Female,
pubmed-meshheading:9257454-Incidence,
pubmed-meshheading:9257454-Ketosis,
pubmed-meshheading:9257454-Linear Models,
pubmed-meshheading:9257454-Mastitis, Bovine,
pubmed-meshheading:9257454-Milk,
pubmed-meshheading:9257454-Models, Biological,
pubmed-meshheading:9257454-Norway,
pubmed-meshheading:9257454-Questionnaires,
pubmed-meshheading:9257454-Reproduction,
pubmed-meshheading:9257454-Retrospective Studies
|
| pubmed:year |
1997
|
| pubmed:articleTitle |
Comparison of ketosis, clinical mastitis, somatic cell count, and reproductive performance between free stall and tie stall barns in Norwegian dairy herds with automatic feeding.
|
| pubmed:affiliation |
Department of Medicine and Epidemiology, University of California, Davis, USA. jpvalde@online.no
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| pubmed:publicationType |
Journal Article,
Comparative Study
|