L’utilisation du prémélange de monensin chez les vaches laitières : un suivi simple et essentiel pour s’assurer d’une utilisation adéquate

The use of monensin premix in dairy cows: Simple and essential steps for ensuring its proper use. Dietary monensin, containing monensin sodium as active ingredient, is frequently used on dairy farms in Canada. Although the use of monensin is safe, some overdose situations have been reported following consumption of higher than recommended doses. A regular monitoring of bulk tank milk fat percentage should be performed to ensure quick detection of a potential overdose situation. Diarrhea and sudden drop in dry matter intake are other potential clinical signs of monensin overdose. Quick detection of such cases will allow rapid correction of the situation.(Translated by the authors)     

Physiopathologie et thérapeutique de l'utérus en période puerpérale chez la vache laitière: revue

Accurate diagnosis and effective therapeutics of uterine pathologies in cattle represent some of the daily preoccupations for the veterinarians involved in herd health medicine. A rational approach requires a competence based on fundamental and clinical knowledge.

The physiological aspects of the uterine involution in cattle are reviewed with emphasis about the in utero bacteriological dynamic and the endocrinological evolution during this period. The pathogenesis of uterine pathologies is discussed following new research results and new knowledge on the mechanisms of uterine defense. The value and limitations of the clinical diagnosis is briefly reviewed. The therapeutics of uterine pathologies is debated in relation with the pathophysiology of the uterine involution and with the rational of the traditional and new concepts of the treatment of the postpartum uterine pathologies.

     

Enquête éco-pathologique continue: facteurs de risque des mammites de la vache laitière I. Analyses multidimensionnelles sur données d'élevage

An epidemiological study about mastitis in French dairy herds, supported by an ecopathological survey is described.     

Une néphrose toxique chez des veaux traités par un médicament contenant des produits de dégradation des tétracyclines

A toxic nephrosis in calves treated with a drug containing tetracycline degradation products     

La gestion sanitaire des élevages de rongeurs utilisés en recherche biomédicale: I. La nécessité de disposer d'animaux homogènes dans leur réaction

The necessity for the disposal of homogeneous reacting animals