Epidemiological approach of factors of variation of milk somatic cell count and mastitis frequency levels in French dairy herds. Approche épidémiologique des facteurs de variation des niveaux de comptage cellulaire du lait et de fréquence des mammites cliniques dans les élevages bovins laitiers français

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Barnouin, Jacques | Chassagne, Michelle | Dorr, Nelly | Sabatier, P. | Boichard, Didier

Edité par CCSD ; Institut de l'Elevage -

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Structural factors of variation of herd bulk somatic cell count and mastitis frequency levels within 560 bovine dairy farms located in 21 French departments. Facteurs structurels de variation des niveaux de comptage cellulaire du lait et de fréquence des mammites cliniques dans 560 élevages bovins répartis dans 21 départements français

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