Risk factors for intramammary infections and subclinical mastitis in post-partum dairy heifers

The prevalence of intramammary infections (IMI) and subclinical mastitis (SCM) in 436 German Holstein heifers was put in relation with clinical findings of the udder and data regarding individual rearing and housing conditions of the animals. The clinical examination took place on the day of the liv...

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Veröffentlicht in:Journal of dairy research 2012-08, Vol.79 (3), p.304-309
Hauptverfasser: Krömker, Volker, Pfannenschmidt, Florian, Helmke, Katherina, Andersson, Robby, Grabowski, Nils T
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Sprache:eng
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Zusammenfassung:The prevalence of intramammary infections (IMI) and subclinical mastitis (SCM) in 436 German Holstein heifers was put in relation with clinical findings of the udder and data regarding individual rearing and housing conditions of the animals. The clinical examination took place on the day of the livestock auction (at approximately 41 d in milk, DIM). On that day, 31% of the heifers had IMI in at least one quarter, and 18% of all quarters were infected. Coagulase-negative staphylococci were the most prevalent bacteria isolated, accounting for 68% of the positive samples. Data were analysed by logistic regression. Criteria such as ‘juvenile intersucking’, ‘teats shorter than 35 mm’, ‘teats with a diameter
ISSN:1469-7629
0022-0299
1469-7629
DOI:10.1017/S0022029912000222