Frequency of isolation of Cryptosporidium spp. F5 Escherichia coli and Salmonella spp. in eight calves dairy farms Mitidja (Algeria)

摘要

352 faecal samples from calves were collected in eight Mitidjas farms in Algeria in order to appreciate feacal shedding of C. parvum, E. coli F5+ and Salmonella. The results showed that C. parvum is the most identified agent (28.9%) compared to E. coli F5+ (2.6%) and Salmonella (1.2%). The parasite and E. coli F5+ were significantly observed in unhealthy calves than in healthy (33.1% vs 13.4% and 3.9% vs 0.7%) respectivelly. On the opposite, no difference was recorded for Salmonella (0.8% vs 0.7%). Cryptosporidia frequently isolated in calves of 8-14 days old (55.3%). Contrary, the infection with E. coli F5+ and Salmonella were mostly observed at 1-7 days (6.1%) and 1-2 month of age (5%) respectivelly.