#$%^&*AU2020230287A120201001.pdf#####ABSTRACT The use of allene oxide synthase as a preservative for semen particularly for use in assisted reproductive procedures for humans and in the breeding of cattle, horses and other animals.1/2 Figure 1 180 160 140 120 100 80 60 40 20 0 1 2 3 4 5 Figure 2 90 80 70 60 50 U Series 40 -Series2 30 20 10 0 1 2 3 4 5