Treatment with neomycin (as a positive control) and dried oregano leaves on mortality, number of days scouring and severity of scours due to Escherichia coli were examined in 30 Holstein calves.
Calves were assigned to one of the treatments following clinical signs of diarrhoea (i.e. faecal score >2), and treated either with an oral solution of neomycin sulphate, to provide 10 mg neomycin sulphate per kg calf body weight per 24 h, or dried oregano leaves, to provide 10 mg oregano essential oil per kg calf body weight per 24 h.
The number of scouring days, severity of scouring and mortality rates were similar between the treatments.
This study indicates that dried oregano leaves administered as an oral solution to calves with diarrhoea may be as effective in the treatment of colibacillosis as neomycin.
Source: Bampidis, V. A., Christodoulou, V., Florou-Paneri, P. & Christaki, E. (2006): Effect of Dried Oregano Leaves Versus Neomycin in Treating Newborn Calves with Colibacillosis. In: Journal of Veterinary Medicine Series A 53 (3), 154-156.
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