Tretipskul C, Am-in N, Tummaruk P, Techakumphu M. Season and Breed Effects on Sperm Production in PRRS Free Boars. TJVM [internet]. 2013 Aug. 2 [cited 2026 Sep. 16];42(4):469-76. available from: https://he01.tci-thaijo.org/index.php/tjvm/article/view/10721