EN
In a trial carried out on broiler chickens, the nutritive value of five pea cultivars (coloured-flowered: Turnia, Sokolik, Milwa, and white-flowered Muza and Cysterski) was determined. A total of 60 male Ross 308 17-dayold chickens were assigned to six experimental groups (10 replications per treatment). Apparent ileal digestibility of amino acids (AID AA) and the value of apparent metabolizable energy (AMEN) were determined. Pea cultivars vary in their contents of tannins (Sokolik 0.48 g · kg–1, Cysterski 0.05 g · kg–1), raffinose family oligosaccharides (Milwa 72.4 g · kg–1, Turnia 88.5 g · kg–1), as well as phytic-P (Muza 4.4 g · kg–1, Turnia 2.1 g · kg–1). The study showed positive correlations between starch content and AID AA (P ≤ 0.05), as well as negative correlations between total tract dry matter retention, AMEN value, AMEN/ gross energy ratio and phytic-P content in pea (r = –0.52, r = –0.31, r = –0.42, P ≤ 0.05, respectively)