Supplementation with 5 g per hen per day
of fresh P. amaryllifolius Roxb. in the diet of laying
hens could significantly improve (P < 0.01) egg
production and the livability percentage of laying
hens kept in an open house system, whereas
significant improvement in the egg quality was
not found in this experiment. The productive
performance and the egg quality of laying hens
kept in housing with evaporative cooling were not
affected by the P. amaryllifolius Roxb.
supplementation.