method was combined with PVS to perform AI in marmosets.
The SU technique has become a standard step to
prepare sperm before assisted reproductive technology in
humans [23]. The purpose of SU is to separate motile sperm
from seminal plasma, dead sperm, leukocytes, and acellular
debris [24]. Accordingly, highly concentrated motile sperm
were obtained from 12 males using this method in this
study. The SU method has been applied to human and NHP
sperm [25] but not to those of marmosets.