Cryptosporidium infection in calves aged up to three months

Misic, Z.; Katic-Radivojevic, S.; Kulisic, Z. . Department of Parasitology

Cryptosporidium infection in calves aged up to three months

2001

Misic, Z. | Katic-Radivojevic, S. | Kulisic, Z. (Faculty of Veterinary Medicine, Belgrade (Yugoslavia). Department of Parasitology)

The prevalence of Cryptosporidium infection among calves aged up to three months in the Belgrade district (Serbia, Yugoslavia) was examined. The animals were grouped according to age, i.e., up to 15 days old, 16 to 30 days, 31 to 60 days and 61 to 90 days old. The infection was diagnosed using Sheather's sugar flotation and three staining procedures: modified Ziehl-Neelsen's, modified Kinyoun's and BBL TB Quick Stain techniques. Among the examined calves 54.0% excreted Cryptosporidium oocysts. The majority of positive results was detected among calves aged up to 15 days (63.1%). Most of the positive animals, aged up to one month, had diarrhea. The highest number of positive cases was detected using the flotation method according to Sheather (54.0%), followed by modified the Ziehl-Neelsen's method (53.2%), while the modified method according to Kinyoun and the BBL TB Quick Stain method detected a smaller number of positive animals (50.0%).

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