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629. Antibiotic treatment of mastitis and its effect on the cell content of the milk

Published online by Cambridge University Press:  01 June 2009

P. S. Blackburn
P. S. Blackburn
Affiliation:
The Hannah Dairy Research Institute, Kirkhill, Ayr
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Extract

Antibiotic treatment eliminated organisms from 61% of staphylococcal and from 80% of streptococcal udder infections. In 84% of quarters from which organisms were eliminated the cell counts of the milk were reduced, about half of them to a normal and about one-third to a late-lactation type of cell count in which the majority of the cells are epithelial cells. The remainder became reinfected before there was time for the cell counts to return to normal. It was found that it may take as long as 5 weeks for the cell counts to return to normal after elimination of mastitis organisms, but in quarters in which the cell count eventually fell there was a decrease in the percentage of polymorphs in the milk to less than 30% one week after treatment.

Type
Original Articles
Information
Journal of Dairy Research , Volume 23 , Issue 2 , June 1956 , pp. 225 - 228
Copyright
Copyright © Proprietors of Journal of Dairy Research 1956

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References

REFERENCES

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(4)MacLeod, Patricia & Anderson, E. O. (1952). Bull. Storrs agric. Exp. Sta. no. 290.Google Scholar
(5)Blackburn, P. S. (1952). Bovine mastitis. The differential cell content of milk in relation to subclinical mastitis. Thesis, University of Glasgow.Google Scholar