Yang, Y., C. Sun, F. Li, A. Shan, and B. Shi. “Characteristics of Faecal Bacterial Flora and Volatile Fatty Acids in Min Pig, Landrace Pig, and Yorkshire Pig”. Electronic Journal of Biotechnology, vol. 53, Sept. 2021, https://preprints.pucv.cl/index.php/ejbiotechnology/article/view/2021.05.002.