The current study was carried out to evaluate the effect of phytogenic feed additive (PFA) on egg production performance in Hy-Line brown layer birds. A flock size 14190 birds selected commercial poultry farm which maintained with standard management practices at Spain. baseline data (T1) recorded for 20 days, thereafter, were fed PFA (500 g/ton) (T2) supplemented 11 days. parameters viz. numbe...