Total cholesterol content as well as HDL, LDL and trigliceride levels were determined in 8-, 12-and 18-week old polbar cocks and hens. The material for analysis was blood collected from the basilic vein (v. basilica). In the blood serum determination of the total cholesterol content as well as HDL and triglyceride levels, whereas the LDL concentration level was calculated from an appropriate formula. The total cholesterol content and HDL levels in the polbar hen serum were both sex and age-dependent. Slightly higher values were determined for the cocks. LDL concentration in polbar hens decreased along with age, whereas triglyceride levels increased as the birds grew older. The males were characterized by higher concentration levels. The obtained concentration values for total cholesterol, HDL, LDL and triglycerides in the genetically consolidated polbar chickens can be employed for comparisons with other poultry breeds.

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