This study was designed to determine whether the biogenic amines phenylethy
lamine, putrescine, cadaverine, and histamine, alone or in combination, if
added at levels above those commonly found in complete mixed rations contai
ning animal by-product meals, would cause lesions or reduce performance in
broilers. The levels of biogenic amines used were double those that have be
en previously reported to cause problems for broilers. Data collected to pe
rformance, gross pathology, and histopathology at 3 and 6 wk indicated no s
ignificant differences in production parameters among amine treatments. No
significant gross lesions or histopathologic changes were evident. This stu
dy suggests that the four studied biogenic amines are of little concern to
the broiler industry when fed in the amounts utilized.