Akademik Veri Yönetim Sistemi
SCIENTIFIC PAPERS-SERIES D-ANIMAL SCIENCE, cilt.58, ss.346-348, 2015 (ESCI)
This experiment was carried out to compare morphological egg quality parameters of brown eggs laid by chickens reared in different production systems: conventional, free-range, and family type production systems. A total of 270 brown eggs were obtained from commercial poultry companies raising Lohmann Brown in a multi-tier cage system and free-range unit as well as families possessing hens in their yards. Differences in egg quality parameters among the production systems were attained using the LSD option at P < 0.05. All egg quality parameters differed by the husbandry system, except for albumen index. Eggs from the free-range system had characteristics similar to those from the conventional system. Quality of eggs from the family type system had high coefficient variation. In conclusion, high variability in quality of eggs from the family type system could be related to variations in breed, age, and diet, which are uncontrollable and undeterminable. The most strikingly different egg quality parameter in eggs from the family type production, in comparison with other is yolk colour.