Document Detail


California mastitis test scores as indicators of subclinical intra-mammary infections at the end of lactation in dairy cows.
MedLine Citation:
PMID:  21074231     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Intramammary infections (IMI) during the dry period can be reduced through the use of dry cow therapy (DCT); in the future, its blanket use is likely to be questioned in the light of public concern regarding the routine use of antibiotics in food producing animals. One possible alternative is to limit DCT to cows with IMI just before drying off, which would require a quick, simple identification of sub-clinical IMI. In the present study we examined quarter milk samples obtained from 240 cows one week before and on the day of drying off, using the California mastitis test (CMT) and for IMI by bacteriological culture. The results indicated that high CMT scores at drying off may be good indicators of IMI: there was a significant association between the frequency of isolation of major pathogens and the CMT score in milk samples obtained one week before (Pearson's χ(2)=27.04, df=4, p<0.001) and those at drying off (Pearson's χ(2)=25.87, df=4, p<0.001).
Authors:
A L Bhutto; R D Murray; Z Woldehiwet
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2010-11-10
Journal Detail:
Title:  Research in veterinary science     Volume:  -     ISSN:  1532-2661     ISO Abbreviation:  Res. Vet. Sci.     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-11-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401300     Medline TA:  Res Vet Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2010 Elsevier Ltd. All rights reserved.
Affiliation:
Departments of Animal and Population Health, University of Liverpool, School of Veterinary Science, Leahurst Campus, Neston, Wirral CH64 7TE, UK.
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