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Veterinary information to support practice, based on evidence and continuing education

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Abstract

The objectives of this study were (1) to estimate costs related to 5 different pathogen-specific mastitis traits (susceptibility to different pathogens causing mastitis in dairy cattle) and unspecific mastitis, and (2) to compare selection differentials for an udder health index consisting of 5...

Author(s)
Sørensen, L. P.; Mark, T.; Sørensen, M. K.; Østergaard, S.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2010, 93, 1, pp 358-369
Abstract

The aim of this study was to estimate genetic correlations (ra) between 2 lactation average somatic cell count (LASCC) traits and 6 different mastitis traits in 226,482 first-parity Danish Holstein cows that calved between 1998 and 2008. The LASCC traits were defined from 5 to either 170 d...

Author(s)
Sørensen, L. P.; Mark, T.; Madsen, P.; Lund, M. S.
Publisher
American Dairy Science Association, Savoy, USA
Citation
Journal of Dairy Science, 2009, 92, 7, pp 3457-3471
Abstract

The objective of this study was to estimate heritabilities for and genetic correlations among different pathogen-specific mastitis traits. The traits were unspecific mastitis, which is all mastitis treatments regardless of the causative pathogen as well as mastitis caused by Streptococcus...

Author(s)
Sørensen, L. P.; Madsen, P.; Mark, T.; Lund, M. S.
Publisher
Cambridge University Press, Cambridge, UK
Citation
Animal, 2009, 3, 5, pp 647-656