5 results for Petrovski, Kiro

  • Outbreak of teat lesions in a herd in Northland.

    Petrovski, Kiro

    Journal article
    Massey University

    No abstract available

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  • Milk composition changes during mastitis.

    Petrovski, Kiro

    Journal article
    Massey University

    No abstract available

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  • Factors associated with bovine mastitis treatment failure.

    Petrovski, Kiro


    Massey University

    no abstract available

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  • A longitudinal study of mastitis on an experimental farm with two herds, one managed organically, the other conventionally.

    Petrovski, Kiro

    Unclassified
    Massey University

    Mastitis in two herds managed as a comparison between organic and conventional dairy farming systems was monitored for 4 years utilising regular bacterial culture of milk samples, individual and bulk somatic cell counts and observation by farm staff. The objective was to develop strategies for the control of mastitis in organic cows without the use of antibiotics. The herds showed differences in clinical mastitis incidence, subclinical mastitis prevalence and bulk milk somatic cell count. Despite these differences, the level of mastitis in the organic herd remained manageable.

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  • The role of the milking machine in the aetiology and epidemiology of bovine mastitis.

    Petrovski, Kiro

    Journal article
    Massey University

    Mastitis is an inflammation of the mammary gland that causes major economic losses In developed dairy countries. A great deal of research has been directed toward the identification of machine factors related to mastitis. The milking machine has little effect on the new mastitis infection rate if it is installed, operated and functions according to internationally recognised standards. Its role in causing mastitis is often overestimated. It has proven difficult to produce mastitis experimentally soley by altering machine functions within accepted parameters. Although not a direct prerequisite for mastitis, the milking machine has significant effects upon the aetiology and epidemiology of mastitis. These effects may operate directly by increasing the new intramammary infection rate, or indirectly by increasing the risk of exposure of the mammary gland to mastitis-causing organisms, and reducing disease resistance in the cow.

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