Information About Shorthorn Cattle

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Description of Expected Progeny Differences

Birth EPD (Pounds) is based on the measured birth weight of progeny, adjusted for dam age. The lower the value the lighter the calf at birth and the lower the likelihood of a difficult birth. This is particularly important when selecting sires for use over heifers.

Milk EPD (Pounds) is an estimate of an animal's milking ability. For sires, this EPD indicates the effect of the daughter's milking ability, inherited from the sire, on the weaning weight of her calves. For dams, it indicates her own milking ability.

Shorthorn Cattle Industry Glossary

animal unit

Common denominator for measuring animal feed requirements where one animal unit is equivalent to the feed requirement for a 1,000-lb mature beef cow.

animal unit month (AUM)

Amount of feed or forage required to maintain one animal unit (e.g., a 1,000-lb cow and calf) for one month.


Product produced by living organisms such as yeast that destroys or inhibits the growth of other organisms, especially bacteria.

History of Shorthorn Cattle

The Shorthorn breed of cattle originated on the northeastern coast of England in the countries of Northumberland, Durham, York and Lincoln. The first real development of the breed occurred in the valley of the Tees River about 1600. The large framed cattle that inhabited this fertile valley became known as Teeswater cattle.