Yang, Liu, Qin Tong, Haipeng Shi, Gang Chen, Zhengxiang Shi, Weichao Zheng, and Baoming Li. 2018. “Adaptability of Pullets from Cages to a Large Cage Aviary Unit System During the Initial Settling-in Period”. International Journal of Agricultural and Biological Engineering 11 (5):70-76. https://doi.org/10.25165/ijabe.v11i5.3216.