The research of the Master thesis was carried out in 2005/2006 years in the Laboratory of the State Food and Veterinary Service of Klaipeda County, state and private poultry farms in Klaipeda County and in the Department of Infectious Diseases of the Lithuanian Veterinary Academy. The data was analysed applying the descriptive statistical analysis method. The Master thesis consists of 48 written pages, 7 tables, 10 figures and 56 references. The study aimed at analysing the Salmonellosis hazard in the poultry farms in Klaipeda County and preparing the plans for Salmonellosis prevention. The goals: to collect the data for epidemiological analysis; to analyse the hazards of Salmonellosis in poultry farms in Klaipeda County; to prepare the plans for Salmonellosis prevention. Bacteriological analyses were carried out according to Food and Feed Microbiology LST EN ISO 6579 standards; the horizontal method for the detection of Salmonella spp. (ISO 6579:2002) was applied. The commercial kits were used to identify Salmonella spp. In a year 2005, 15660 poultry keepers were registrated in Klaipeda County, with the total of 817960 birds, 797974 of which were hens. In 2005 there were analysed 1524 samples for Salmonellosis. About 40.4 % of the analysed samples were pooled samples of chicks 1 to 4 d old, in which the majority of pooled samples constituted the samples from boxes, bedding, faeces (282 samples). The pooled samples in the layer hens group amounted to 24.6 % of the total... [to full text]