Although it is known that propolis is effective in cell
membrane similarly to vitamin C in oxidative stress
conditions, this study aimed to determine whether propolis
prevents the negative effects caused by heat stress on
performance, digestibility and egg qualities similar to
vitamin C. The objective of this study was to determine the
possible beneficial effects of dietary propolis and vitamin C
supplementation on FI, BW, body weight gain (BWG), feed
conversion rate (FCR), digestibility and, particularly, on egg
production and qualities (weight, mortality, shell thickness)
in laying hens exposed to a chronic heat stress.