Sperm transfer method

Abstract

Abstract Animal sperm is inserted into geletin capules and freeze-sealed with a plug of felt-like material extending across the open end portion of each capsule, the peripheral portion of each plug extending slightly beyond the external wall of the capsule. Prior to sealing, each plug is wetted at its under surface with a sterile liquid and the seal is obtained by freezing. Each plug has a ferromagnetic coat on its upper surface. The capsules are placed in serial array, in a storage tube having a closed end. A ferromagnetic cap having a clip extending therefrom is placed on and into the open end of the tube with the clip extending thereinto and bearing against the internal wall thereof, in which condition the capsules are placed in a freezer-container. In use, a tube is removed from the container and a rod having a permanent magnet at one end is used to remove the cap and also to remove a capsule therefrom. The rod and capsule are then placed in a pipette having an open end and a radially inwardly extending flange providing a smaller opening at the other end thereof. The pipette is inserted into a female animal and the capsule is moved by, said flange. When body heat melts the liquid, the pipette, rod and closure are withdrawn from the animal. The free surface of the coat may be labeled with significant indicia.

Inventors

• 👤 H Merkt
• 👤 J Hannig

Bibliographic Details