Egg quality and egg geometry influenced by mannan- oligosaccharides (MOS), a prebiotic supplementation in four closebred flocks of Japanese quail breeders (Coturnix coturnix japonica).

In the present study 960 birds (12 week old) of four closebred flocks (CBF) of Japanese quail breeders were used to explore effects of mannan-oligosaccharides (MOS) on egg geometry and egg quality characteristics. Diet given to birds comprised of corn-based or corn supplemented with 0.25%, 0.50% and 1.0% MOS for 15 weeks. Collected data was analyzed by two-way ANOVA utilizing SAS 9.1 for windows. Birds fed MOS supplemented diets had significantly (p 0.05) differed in MOS supplemented and control groups, however, a significant change was recorded among CBF and interaction of CBF and MOS levels. From obtained results, it is concluded that MOS did not significantly affect the egg quality and egg geometry in laying quails except eggs' weight.