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Artificial Insemination in Dairy Cattle¹

University of Minnesota, Grand Rapids, Minnesota
University Farm, St. Paul, Minnesota

ABSTRACT

The first work in artificial insemination at Minnesota was done with sheep. Technics for semen collection and for the insemination of the ewes were developed. Solutions and methods for the preservation of sperm were also perfected and ewes have been successfully inseminated with sperm six days of age although they have been kept motile for much longer periods of time. We have successfully transported semen back and forth between the Sub-Station at Grand Rapids and University Farm, St. Paul, Minnesota. During the past fall we also successfully shipped semen from Grand Rapids, to the George McKerrow and Sons Farm at Pewaukee, Wisconsin.

During 1935 and 1936, considerable attention has been given to developing technics for the insemination of cattle at the University of Minnesota. During the Spring of 1937 it was thought that enough preliminary work had been completed to give it a field trial. In June of 1937, a small breeding route was organized around the Station at Grand Rapids.

¹ Published as Paper No. 1622 of the Scientific Journal Series of the Minnesota Agricultural Experiment Station.