THE EFFECT OF HEAT TREATMENT ON ILEAL AMINO ACID DIGESTIBILITY OF GROWING BROILERS GIVEN VETCH AND BITTER VETCH MEALS

摘要

Forty-eight 4-week-old White Rock growing chickens (mean live weight 500 (s.e. 9.3)g) were given, by crop intubation, four isoenergetic (13.1 MJ metabolizable energy (ME) per kg dry matter (DM)) and isonitrogenous (120 g crude protein (CP) per kg DM) semisynthetic diets based on vetch (V) or bitter vetch (B) seeds, untreated or autoclaved at 120 degrees C for 30 min (diets V, AV, B and AB, respectively). Autoclaving of the seeds caused some changes in amino acid (AA) composition but did not reduce the availability of AAs, especially of lysine.