TY  - JOUR
AU  - نوبخت, علی
TI  - The effects of urea and diet energy level on performance, egg quality traits and blood parameters of laying hens
JO  - journal of veterinary clinical research
VL  - 7
IS  - 1
SP  - 11
EP  - 23
PY  - 2016
DO  - 
ER  -