The single most important economic trait in the cattle industry is that of fertility. That ability of a cow to give birth to a live calf each year of her productive life. The first calf should arrive at the cow's second birthday and a subsequent calf every 12 months.
Fertility is a genetic fact that can be transmitted.
Those that own them swear by them. A small polled head and average birth weight between 70-75 lbs. is normal. Most people can easily understand the importance of this trait but the economic implications sometimes escape them. Excellent Milking Ability. Good question, and there is a logical answer.