Cow Size Matters When Evaluating Calf Weaning Performance

Bigger cows must wean proportionally heavier calves to justify higher ownership costs.

Grazing cattle, various breeds

Carrie – stock.adobe.com

NASHVILLE, Tenn. (RFD-TV) — Weaning weights alone can be misleading when comparing cow performance, especially in herds with wide variation in mature cow size. That’s a key point highlighted by Kenny Burdine, livestock economist with the Kentucky Cooperative Extension Service, as producers review records and make culling decisions.

Larger cows often wean heavier calves, but they also cost more to maintain. Bigger cows consume more forage, hay, supplements, and minerals — and they often carry higher indirect costs tied to health, handling, transportation, and yardage. When culling decisions are based strictly on calf weaning weight, smaller-framed cows are more likely to be removed, gradually increasing average cow size and pushing herd costs higher over time.

Burdine’s analysis suggests producers should view productivity relative to cow size, not just raw calf pounds. In a budgeting exercise, he found that for every additional 100 pounds of mature cow weight, a cow needed to wean roughly 50 more pounds of calf just to stay economically competitive. That relationship shifts with cattle prices, but the principle remains consistent.

Tracking individual cow-calf performance helps identify which cows are truly earning their place.

Related Stories
While social media has labeled the possible event a “Godzilla El Niño,” experts say the intensity remains uncertain—but the signal for a stronger pattern is there.
Rising diesel and energy costs are squeezing farmers and rural communities, increasing production expenses and raising concerns about consumer demand for beef even as U.S. meat exports regain the Australian market.
Texas ranchers and lawmakers warn of renewed New World screwworm risks, highlighting prevention efforts, border concerns, and the role of sterile flies in protecting U.S. livestock.
Farm Bureau economist Danny Munch discusses the USDA’s request for feedback on data and research, how such requests work, and what farmers should know about submitting comments before the Thursday, April 9 deadline.
USDA Undersecretary Dr. Mindy Brashears provides more insight on the updated “Product of USA” label campaign and the USDA’s goals for both consumers and producers.
Farm CPA Paul Neiffer joined us to break down the application process for Stages 1 and 2 of the USDA’s Supplemental Disaster Relief Program, and what farmers can expect as the deadline approaches.

Tony St. James joined the RFD-TV talent team in August 2024, bringing a wealth of experience and a fresh perspective to RFD-TV and Rural Radio Channel 147 Sirius XM. In addition to his role as Market Specialist (collaborating with Scott “The Cow Guy” Shellady to provide radio and TV audiences with the latest updates on ag commodity markets), he hosts “Rural America Live” and serves as talent for trade shows.

LATEST STORIES BY THIS AUTHOR:

Consumer spending continues, but value-focused buying is on the rise.
Cooperatives may need changes to attract younger producers.
Rising costs are significantly extending walnut profitability timelines.
Consistent sorghum quality supports strong export demand potential.
Corn and sorghum exports remain strong; soybean demand lags.
Higher energy activity likely keeps fuel and fertilizer costs elevated.
Agriculture Shows
Hosted by Scott “The Cow Guy” Shellady and RFD News Markets Specialist Tony St. James, Commodity Talk delivers expert insight into the day’s ag commodity markets just before the CME opens. Only on RFD-TV and Rural Radio SiriusXM Channel 147.
A look at the news, weather and commodities headlines that drove agriculture markets in the past week.
Everything profits from prairie. Soil, air, water — and all kinds of life! Learn how you can improve your land with prairie restoration, cover crops and prairie strips, while growing your bottom line.
Special 3-part series tells the story of the Claas family’s legacy, which changed agriculture forever.