Zhou, Xingdong
Guan, Ran
Cai, Hongbo
Wang, Pei
Yang, Yongchun
Wang, Xiaodu
Li, Xiaowen
Song, Houhui
Article History
Received: 25 May 2022
Accepted: 1 August 2022
First Online: 10 August 2022
Declarations
:
: All data in this study came from the internal data management system, and the author had access rights. The study only involved statistical analysis of the data without field investigation of pig farms.
: Not applicable.
: The authors declare no conflicts of interest.