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Selection of Artificial Insemination Sires to Maximize Profits¹

Departments of Agricultural Economics and Animal Science, Texas A & M University, College Station 77843

ABSTRACT

A profit-maximizing criterion for sire selection (net present value) was developed to rank artificial insemination sires for individual dairies on alternative selection policies for milk income, type score, conception rate to first service, calving interval, female mortality rate, semen price, and real interest rate. Active Holstein artificial insemination sires from the July 1982 USDA Sire Summary were ranked by net present value of their semen. Most profitable sires were not generally those with maximum transmitting abilities for milk income or type score but were those offering substantial genetic improvement at relatively low semen prices. The 20 most profitable sires under alternative selection policies for milk income and type score can be purchased with smaller semen budgets than bulls of average profitability.

¹ Technical article 19009 of the Texas Agricultural Experiment Station, College Station 77843. Project 2491, a contribution to Southern Regional Project S49, Genetic Methods of Improving Dairy Cattle for the South.

² ARCO, Dallas, TX.