PL
The main of work was estimation of advantages and disadvantages for joint-stock poultry companies line resulting from entries on regulated stock exchange market. The research involved 3 poultry companies such as based in Olsztyn, Drosed based in Siedlce and Ekodrob in Iława. The subjects of the research were: the capital structure, economic and financial results of the above poultry companies before and after their going public. The research was carried out in 2 periods in the year between 1991-1993 for Indykpol and drosed, 1995-1996 for Ekodrob (before issuing shares). The second period was between 1994-2005for Indykpol, 1994-2004for Drosed and 1997-2005 for Ekodrob (after the launch).