Rate of infection of domestic chickens with helminths in different climatic zones of Azerbaijan

Within the framework of these studies during 2014-2015, the levels of extensiveness and intensity of infection by various types of helminths were studied for three age groups of chickens from local breeds, reared in outdoor stabling conditions and walking areas of family poultry farms in mountainous (Khizi district), foothill (Khachmaz district) and lowland (Saatly district) territories. In studies carried out in these three climatic zones, intense infection of birds with helminths at 3-4 months of age, making uo withA.galli EI 62.3, H. gallinarum EI 50.8, II 1-30, R.tetragona IE 36, 6, 1-14, S.trachea EI 29.1, C.obsignata EI 17.7 %, II 1-13, in 5-7 months of age Sinqamus II 1-19, in adults Askaridia II 1-36, were recorded in foothill areas. A low level of extensiveness and intensity of invasion of infected birds was found in lowland areas, and a medium level in foothill areas. One of the main reasons for this is low temperature and high relative humidity in mountainous areas, high air temperature and low relative humidity in low-lying areas and a suitable air temperature and relative humidity in foothill areas for the development of helminth eggs in the external environment.