By Scout Nelson
The size of mature cows plays an important role in the success of commercial cow-calf operations. While larger cows often produce slightly heavier calves, research shows that they also require more feed, more pasture, and higher production costs. Many producers are finding that moderate-sized cows provide better long-term efficiency and improve profitability, especially when land and forage resources are limited.
Kim Ricardo, SDSU Extension Forage Field Specialist, explained that evaluating mature cow size helps producers balance animal performance with available resources. The information highlights that moderate-sized cows often deliver stronger economic returns because they require less feed while maintaining good reproductive performance and consistent calf production.
One way to measure cow performance is by comparing the weight of the calf at weaning to the weight of the cow. A productive cow should ideally weigh at least 50% of her body weight each year. For example, a 1,000-pound cow weaning a 500-pound calf reaches this goal, while a 1,500-pound cow weaning a 550-pound calf is less efficient despite producing a slightly heavier calf.
Larger cows also consume much more forage. Research shows that a 1,500-pound cow eats about eight more pounds of dry matter each day than a 1,000-pound cow. Over a full year, this additional feed requirement means fewer cows can be supported on the same pasture. A land base that supports about 135 moderate-sized cows may only support around 100 larger cows.
This difference directly affects total calf production and revenue. Using equal land resources, a moderate-sized herd can produce approximately 60,500 pounds of calf weight compared to 49,500 pounds from a larger herd. Based on market values used in the study, the moderate-sized herd generates about $302,500 in revenue, while the larger herd produces approximately $247,500, creating a difference of $55,000.
Larger cows also increase production expenses through higher forage use, winter feeding, and replacement costs. These added expenses become even more challenging during drought or periods of limited pasture growth.
FAQs
- Why are moderate-sized cows considered more profitable?
They require less feed, support higher stocking rates, and generate more revenue per acre.
- How much forage does a larger cow consume compared to a moderate-sized cow?
A 1,500-pound cow consumes about eight more pounds of dry matter each day.
- What is an efficient cow in a cow-calf operation?
An efficient cow consistently weans a healthy calf while requiring fewer production inputs.
- How does mature cow size affect pasture use?
Larger cows need more pasture, reducing the number of animals that can be supported on the same land.
- How can producers manage mature cow size over time?
They can select breeding animals with moderate frame size and focus on efficiency traits rather than maximum growth.
Photo Credit: istock-simplycreativephotography
Categories: South Dakota, Livestock, Beef Cattle, Dairy Cattle