Necrospermia is the presence of an elevated percent of dead sperm in the ejaculate. Thus, the answer is yes, it might be associated with OAT (oligoasthenoteratozoospermia), especially with asthenozoospermia, since the reason why there are immotile sperm in the ejaculate might be that they are dead.
Read the full article on: What Diseases Are Associated with Oligospermia? ( 69).

Zaira Salvador
B.Sc., M.Sc.
Bachelor's Degree in Biotechnology from the Technical University of Valencia (UPV). Biotechnology Degree from the National University of Ireland en Galway (NUIG) and embryologist specializing in Assisted Reproduction, with a Master's Degree in Biotechnology of Human Reproduction from the University of Valencia (UV) and the Valencian Infertility Institute (IVI)
License: 3185-CV