TY  - JOUR 
T1  - Productive Performance, Egg Characteristics and Hatching Traits of Three Chicken Genotypes under Free-Range, Semi-Intensive, and Intensive Housing Systems
JO  - Brazilian Journal of Poultry Science
A1  - Ahmad, S
A1  - Mahmud, A
A1  - Hussain, J
A1  - Javed, K
SN  - 1516-635X
UL  - 10.1590/1806-9061-2018-0935
VL  - 21 
Y1  - 2019
PB  - Brazil 
ER  -