TY  - JOUR
TI  - Production and egg quality traits of organic hens in a laying period under commercial
conditions in Turkey
AB  - The productive performance and egg quality traits of hens in an organic production system in Turkey were executed in this
paper. A total of 6000 hens were reared in an organic system for 72 weeks. Two organic certified houses each with a capacity of 3000
hens were used in the study. Mean egg production during the laying period was 303 eggs per hen. Laying rate was 80.24% for 72 weeks,
while mortality was 8.85%. The internal and external egg quality traits were determined between 25 and 72 weeks. Mean egg weight
was 63.03 g and shell thickness was 0.35 mm. Shape index was significantly decreased with age (P < 0.01). Mean shape index value was
76.34%. Shell breaking strength was highest (3.60 kg/cm2
) at peak production and decreased with age (P < 0.01). Haugh unit was 98.19
and highest at 25 weeks and significantly decreased with age (P < 0.01). Mean Haugh unit was 80.39. Albumen index was highest at 25
weeks and significantly decreased (P < 0.01). Conversely, yolk index significantly increased with age (P < 0.01).
AU  - SARIBAŞ, ONUR
AU  - Yamak, Umut Sami
DO  - 10.3906/vet-2004-87
PY  - 2020
JO  - Turkish Journal of Veterinary and Animal Sciences
VL  - 44
IS  - 6
SN  - 1300-0128
SP  - 1188
EP  - 1195
DB  - TRDizin
UR  - http://search/yayin/detay/530606
ER  -