Zhenzhen, P., Baoming, L., Weichao, Z., Baozhong, L., & Zuohua, L. (2016). Effects of water-cooled cover on physiological and production parameters of farrowing sows under hot and humid climates. International Journal of Agricultural and Biological Engineering, 9(4), 178–184. Retrieved from https://www.ijabe.migration.pkpps06.publicknowledgeproject.org/index.php/ijabe/article/view/1858