PROCESS OF SEX SELECTION OF MAMMAL SPERMATOZOA AND METHOD TO CONTROL QUALITY OF FROZEN SEXED SEMEN DOSES

摘要

The invention allows the production by centrifugation in density gradient, in companies specialized in the production and commercialization of frozen semen, of semen doses enriched with X or Y chromosome-bearing spermatozoa, not impairing the fertilization capacity of said spermatozoa. According to the present invention, samples of spermatozoa containing both X and Y spermatozoa can be separated to produce subpopulations enriched with X or Y spermatozoa, which are substantially pure regarding the desired spermatozoa and substantially free from the other type of spermatozoa.