The World's source for Bovine Genetics
One Million Units Sold


On Wednesday, January 30, 2002, Denis Curtin (right), Sale Representative for All West/ Select Sires, in Fresno California, became the 7th person in Artificial Insemination history to ever sell one million units of semen.


Denis Curtin was born and raised in Ireland and was an A.I. technician there before immigrating to the United States in 1977. He started his A.I. career in the U.S. with California's Superior Sires in 1980 and has been a sales representative for All West/Select Sires since that time.

Denis joins two other current All West sales representatives in the million unit club. Burlington, Washington representative, Ray Reuble was the 5th salesman in the industry and California's Allan Cossentine the 6th to sell 1 million units of semen in their career.

Denis Curtin's 1 millionth unit of semen was sold to long-time friend and customer John Zonneveld (right) of Zonneveld Dairies in Fresno, California. All West congratulates Denis Curtin on the truly remarkable accomplishment. Denis would like to thank all his loyal customers for their years of support and helping him reach this milestone.


All West/Select Sires is the oldest and most successful A.I. Cooperative in the West. All West is a patronage paying cooperative that has marketed over 1 million units of beef and dairy semen in the West, last year alone.





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