1 National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, Guangdong, China.
2 National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, Guangdong, China. qyjiang@scau.edu.cn.
3 ALLTECH-SCAU Animal Nutrition Control Research Alliance, South China Agricultural University, Guangzhou, 510642, PR China. qyjiang@scau.edu.cn.
4 National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, Guangdong, China. shugang@scau.edu.cn.
5 ALLTECH-SCAU Animal Nutrition Control Research Alliance, South China Agricultural University, Guangzhou, 510642, PR China. shugang@scau.edu.cn.