Impact of different housing systems and age of layers on egg quality characteristics

Authors : Bilgehan YILMAZ DİKMEN, Aydın İPEK, Ümran ŞAHAN, Arda SÖZCÜ, Süleyman Can BAYCAN

Pages : 77-84

View : 16 | Download : 4

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :  The aim of this study was to investigate effects of conventional-cage insert ignore into journalissuearticles values(CC);, enriched-cage insert ignore into journalissuearticles values(EC);, and free-range insert ignore into journalissuearticles values(FR); systems and hen age on internal and external egg quality parameters of layers insert ignore into journalissuearticles values(Lohmann Brown);. A total of 720 eggs were analyzed for egg weight insert ignore into journalissuearticles values(EW);, shell weight insert ignore into journalissuearticles values(SW);, yolk weight insert ignore into journalissuearticles values(YW);, albumen weight insert ignore into journalissuearticles values(AW);, shell thickness insert ignore into journalissuearticles values(ST);, shell breaking strength insert ignore into journalissuearticles values(SBS);, shape insert ignore into journalissuearticles values(SI);, albumen insert ignore into journalissuearticles values(AI);, yolk index insert ignore into journalissuearticles values(YI); of eggs, shell ratio of eggs insert ignore into journalissuearticles values(SR);, albumen ratio of eggs insert ignore into journalissuearticles values(AR);, yolk ratio of eggs insert ignore into journalissuearticles values(YR);, yolk color insert ignore into journalissuearticles values(YC);, and Haugh unit insert ignore into journalissuearticles values(HU);. The highest EW, YW, AW, SW, AI, YI, HU insert ignore into journalissuearticles values(all P < 0.001);, and SI values were found in FR system eggs compared with CC and EC system eggs insert ignore into journalissuearticles values(P = 0.045);. The SBS, ST, YC, SR, YR, and AR were found similar in all housing systems. There was an interaction between the housing system and hen age for EW, SW, YW, AW, SBS, ST, AI, YC, HU, AR insert ignore into journalissuearticles values(all P < 0.001);, SI insert ignore into journalissuearticles values(P = 0.003);, SR insert ignore into journalissuearticles values(P = 0.001);, and YR insert ignore into journalissuearticles values(P = 0.001); of eggs. It can be concluded that eggs in the FR system were better in overall quality than eggs from CC and EC systems.
Keywords : Conventional cage, enriched cage, free range, age, egg quality traits