Sperm selective part structure and sperm screening apparatus with sperm selective part structure and method for preparing sperm for insemination

摘要

Provided is a sperm selection section structure capable of efficiently separating sperms with good motility.A reservoir section for storing sperm collected from the animal, a buffer fluid channel communicating with the reservoir section and flowing buffer fluid in a laminar flow toward the reservoir section, and a syringe flow path through the buffer fluid channel from the reservoir section A downstream portion of the upstream passage is a wide flow passage which is a gentle flow while maintaining the laminar flow state of the buffer solution, and the flow passage And a downstream end portion of the opening portion is opened so as to face the wall surface of the storage portion.