Cryptosporidium infection seasonal dynamic on sheep in Azerbaijan

In the article is reported seasonal infection dynamics, degree of extensiveness of infection and intensity with from primary intestinal parasites in sheep in Lankaran-Astara economic region. The results confirm the spread of cryptosporidiosis among lambs. Studies have shown that cryptosporidiosis in young animals is more severe than in older animals, older animals are chronic. A result of parasitological examinations identified on seasons of sheep of different ages dynamics of Cryptosporidium infection in sheep farms in the territory of Lankaran-Astara economic region. As the object of research were examined lambs aged 1-30 days, 2-4 months, 5-7 months and 8-12 months for seasons. Thus, the total intensity of the invasion is 32.3% in spring, 9.1% in summer, 28.3% in autumn and 17.2% in winter in Masalli region, 29.0% in spring, 7.5% in summer, 23.6% in autumn and 15.0% in winter in Lankaran region, 25.2% in spring, 5.0% in summer, 20.2% in autumn and 13.1% in winter in Astara region, 23.4% in spring, 3.2% in summer, 19.1% in autumn and 10.6% in winter in Lerik region. The studied animals intensity of invasion determined by the number of oocysts in the 20 field of view of the microscope and there were in spring 1-5 oocysts, in summer 1-2 oocysts, in autumn 1-4 oocysts, in winter 1-3 oocysts.