Abstract:Les auteurs ont rendu compte de la flore bactérienne de la vessie urinaire chez 40 bovins abattus à l'abattoir de Zaria au Nigeria. Dix isolats bactériens ont été identifiés. Staphylococcus aureus, avec une prévalence de 22,5 % était l'isolat le plus fréquemment rencontré. Parmi les échantillons examinés, 16 (40 %) avaient une apparence trouble et, parmi ces derniers, 11 (68,8 %) n'avaient pas de croissances bactériennes. Corynebacterium renale a été isolé chez 5 Il 2,5 %) bovins bien qu'il n'y ait pas eu de s… Show more
The prevalence of urinary tract infections in calves aged seven days to three months in three dairy cattle herds ranged from 0.5 to 1.6 per cent, with an average of 1.1 per cent. The mortality rate reached 16.1 per cent. The morbidity rate of the female calves was 1.4 per cent and that of the male calves 0.8 per cent. The bacteria isolated from urine, and from vaginal and preputial swabs were Escherichia coli (35 per cent), Corynebacterium renale (14 per cent), plasma coagulase-negative Staphylococcus species (12 per cent), Pseudomonas aeruginosa (12 per cent), Proteus species (12 per cent) and Arcanobacterium pyogenes (5 per cent). The affected calves had a significantly lower serum concentration of inorganic phosphorus (P < 0.01).
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