Distribution of cryptosporidiosis of large grain scale in kyiv and zhytomyr.

Abstract

The analysis of literary data and own research testify to the widespread spread
of cryptosporidiosis in farms. There are literary data on the epizootology of cryptosporidiosis in
animals in different regions of Ukraine, in particular Chernigov, Cherkassy, Khmelnytsky, Kharkiv,
Lugansk, Lviv. Most often, cryptosporidium was shown in farms where calf diseases with diarrhea
symptoms were recorded. In the study of feces of calves in the Ukrainian Polesie area, oocysts were
detected in 16 farms out of 17 examined. The odds of calves were the simplest of 27-73%, and in six
farms - 100%. According to the results of the research, it was established that Cryptosporidium par-
vum is the causative agent of cryptosporidiosis in cattle at farms of the Kiev and Zhytomyr regions.
According to the results of the copro-optical researches, the maximum extent of invasion in the
animal farms of the Kiev region was 44.5%. At the same time, the impact of young cattle by cryp-
tosporidia was noted at the farms of Vasilkovsky region was 65.4%, in the Brovarsky rayon - 65.5%,
and in Borodyanka district - 56.3%. In the farms of the Zhytomyr region, the extensiveness of the
invasion in animals was 52.2%, which is 7,7% higher than in the Kiev region. It was noted that the
high infection with calf cryptosporidia was observed at the 7th and 14th day of the disease, while
the severity of the invasion was 100 and 84% respectively. Low incidence of invasion was noted in
calves of 35 days of age - 44%. So the peak of the pathogenicity of the animals was in the winter,
where the incidence of invasion was 77.5%, and the intensity of the invasion was 96.16 ± 1.89 oo-
cysts of cryptosporidia. In the spring of 58 invasive animals, the severity of invasion was 72.5%, with
an intensity of invasion - 92.91 ± 1.99 oocysts of cryptosporidia in 10 fields of view of a microscope.
The decline in animal invasion was recorded in the summer (EI - 56.2%) and fall (EI - 65%).
Keywords: cattle, cryptosporidiosis, distribution, extensiveness, intensity, invasion