Portulaca oleracea L. is a plant resource used
as medicine and food. Zhang et al. (2003) reported
that adding fresh P. oleracea to broiler feed led to good
palatability and increased feed intake. Moreover, daily
gain and FCR were enhanced notably. Other researchers
found that broilers were resistant to infectious bronchitis
virus infection when 5% fresh P. oleracea was
added to the daily ration (Pan et al., 1996). In our
current experiment, the daily gain of broilers treated
with P. oleracea extracts was higher than that of CON