The Factors Affected to the Spread Dynamıcs of the Infectıon by Echınococcus Granulosus Hydatıc Cyst in Sheep and Goats

ABSTRACT: The researches were conducted in order to determine the spreading of echinococcosis in sheep and goats in the Mountainous-Shirvan and Shirvan-Salyan economic regions of Azerbaijan. The liver, lungs, spleen and kidneys of 1200 sheep, 1080 goats from the Mountainous-Shirvan economic region, 1400 sheep and 765 goats from the Shirvan-Salyan economic region used for slaughter from farms, were examined according to the echinococcus cysts. In general, 2,600 sheep from two economic regions were researched on the seasons for 1 year, and were noted in 1,134 animals hydatid cysts (43.6%). In sheep, the infection percentage was high in winter (58.7%) and autumn (56.4%), and low in spring (21.8%). During the year, the hydatid cysts were noted in 796 goats (43.1%) during the examination of 1845 goats. In goats, the infection percentage was noted high in winter (47.6%) and summer (45.1%), and relatively weak in spring (34.3%), regardless of the age dynamics. It was determined that there are invasion protoscoleces in the cysts of 90% of sheep and 85% of goats. In order to determine the infection status of E.granulosus cestodes in the main hosts, coprological samples of 82 shepherd dogs, 447 stray dogs, 75 foxes and 39 jackals were examined coprologically. The eggs of Echinococcus granulosus cestodes were folowed in the samples belonging to 4 shepherd dogs (4.9%), 98 stray dogs (21.9%), 28 foxes (37.3%) and 7 jackals (17.9%). Coprological samples of the main hosts were examined using the methods of Sherbovich, Vishniauskas, and Fulleborn. To detect echinococcus cysts in intermediate hosts, the method of complete dissection was used. Hematoxylin-eosin staining was used to determine the activity of protocols in hydatid cysts. The number of studied animals, the number of hydatid cysts in sick animals, and the average relative coefficient of the number were calculated based on the "Student t criterion".