This study was conducted to explore whether dietary pectic oligosaccharide (POS) supplementation could improve gut health of broiler breeders with different egg-laying rates. A 2 × 2 factorial design was used in this study. Two hundred fifty-six Arbor Acres broiler breeders (48 wk of age). including 128 average egg-laying rate and 128 low egg-laying rate (LELR) birds. https://barayiknf3obk.nizarblog.com/35080332/evaluation-of-air-traffic-network-resilience-a-uk-case-study