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Year : 1994
Tome : 145
Volume : 1
Pages : 43-47
Title : Some epidemiological data about subclinical mastitis in dairy cow
Authors : F. LONGO, J.C. BEGUIN, P.J. CONSALVI et J.C. DELTOR.
Summary : This trial was carried out in four herds in Aveyron. All the quarters of all the lactating cows were sampled for a somatic cell count and a bacteriological analysis. This study included 118 cows and 468 quarters. Staphylococcus aureus, isolated from 44.7 % of the samples, was found as the most important pathogen responsible for subclinical mastitis. The changes of somatic cell counts according to the lactation number were significant and the cell counts were significantly higher when associated with a positive bacteriological analysis, particularly in streptococci infections.
Keywords : lactating cow - epidemiology - subclinical mastitis - bacteriology - somatic cell count.
Correspondence : F. LONGO
Adress : Mérial, 4, chemin du Calquet, F-31057 Toulouse Cedex

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