Authors : M.D. Garcia, C. Cruz-Vazquez, T. Quezada, E. Silva, A. Valdivia, S. Vazquez and M. Ramos
Abstract: The objective of this study was to estimate the risk infection of cryptosporidiosis in dairy calves from Aguascalientes, Mexico, in relation with the season and months of sampling. During a period of 12 months, fecal samples were collected every 14 days, which were processed by Kinyoun staining of fecal smears. Seasonal distribution of Cryptosporidium sp. prevalence was described and in order to establish the risk of infection during each season of the year and the months of sampling, a logistic regression analysis was performed. The highest prevalence (48 and 45%, respectively) was observed during summer and autumn and during spring and winter the lowest (33 and 36%), there were no differences between seasons (p>0.05) general prevalence was 40%. Distribution of monthly prevalence showed fluctuations from March to July, with a peak in August (57%) and it slowly tapered down until December (43%). It was not possible to identify any season of the year as a possible risk factor in the infection by Cryptosporidium sp. nevertheless, sampling months of August to November had odds ratios in a range between 2.3 and 1.4 (p<0.05).
M.D. Garcia, C. Cruz-Vazquez, T. Quezada, E. Silva, A. Valdivia, S. Vazquez and M. Ramos, 2009. Cryptosporidiosis in Dairy Calves from Aguascalientes, Mexico: Risk Infection in Relation with the Season and Months of Sampling. Journal of Animal and Veterinary Advances, 8: 1579-1583.