Citation | Yekti APA, Rahayu S, Ciptadi G, Susilawati T (2023). The quality and proportion of spermatozoa X and Y in sexed frozen semen separated with percoll gradient density centrifugation method on Friesian Holstein bull. Adv. Anim. Vet. Sci. 11(3):371-378. DOI | https://dx.doi.org/10.17582/journal.aavs/2023/11.3.371.378