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Effect of udder preparation on transmission of Staphylococcus aureus while milking with a multi-valved cluster

  • Robert J. Grindal (a1) and A. John Bramley (a1)

Summary

With two groups of 12 cows, a procedure involving foremilking, teat washing and drying before milking was compared with no premilking preparation for its effects on mastitis and teat contamination. Half the cows in each group were deliberately infected in a single udder quarter with Staphylococcus aureus and milked alternately with uninfected cows for 9 weeks. To minimize transfer during milking all cows were milked with the use of a multi-valved claw.

Five new staphylococcal infections developed in the 12 animals in the teat preparation group compared to one in the control group. A significantly higher incidence of teat orifice colonization developed in the prepared cows compared to the control cows (17 v. 7). Foremilking and teat preparation led to transfer of staphylococci between quarters (within cow) but this was effectively prevented by the multi-valve claw in the absence of teat preparation.

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Effect of udder preparation on transmission of Staphylococcus aureus while milking with a multi-valved cluster

  • Robert J. Grindal (a1) and A. John Bramley (a1)

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