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
“I’m not sure where this bridge goes,” trader Brady Huck with Advanced Trading told RFD-TV News earlier this week.
Plan for sharp, short-term volatility after unexpected outages; permanent closures rarely trigger major price spread disruptions.
Ethanol output softened, but underlying supply-and-demand trends indicate stable longer-term use despite short-term volatility in blending and exports.
The specific provision in the CO₂ storage law allowed the North Dakota Industrial Commission (NDIC) to authorize carbon storage projects to proceed even if they lacked unanimous consent from all affected landowners.
American Farm Bureau Federation (AFBF) economist Danny Munch joined us on Thursday’s Market Day Report to break down the scope of the U.S. Christmas Tree industry and what growers are up against.
Rising beef supplies and lower cattle prices, weaker hog markets, and softening dairy prices will shape producer margins heading into 2026.
Experts say flooding the zone with more money could have unintented consequences without opening new markets for planted crops and inputs under significant pressure.
Outdated reporting thresholds reduce cash-market visibility and increase the urgency of comprehensive Mandatory Price Reporting reform.
Dr. Jeffrey Gold, President of the University of Nebraska, joined Rural Health Matters to outline a few key reminders for parents about keeping kids healthy during the holiday season.

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:

Larger operations maintain cost advantages, while softer equipment sales suggest producers are pacing machinery upgrades amid tighter margins.
Transportation access, legal disputes, and fertilizer freight costs will directly influence input pricing and grain movement in 2026.
Corn and wheat exports remain supportive, but weaker soybean demand — especially from China — continues to pressure oilseed markets.
China’s pullback is hitting core U.S. commodities hard, reshaping export expectations for soybeans, cotton, grains, and livestock.
Slower grain movement may pressure basis, but falling diesel prices could help offset transportation costs.
Regional differences indicate that family ownership is universal, but farm structure and commodity mix determine the extent to which these operations drive agricultural output.
Agriculture Shows
From soil to harvest. Top Crop is an all-new series about four of the best farmers in the world—Dan Luepkes, of Oregan, Illinois; Cory Atley, of Cedarville, Ohio; Shelby Fite, of Jackson Center, Ohio; Russell Hedrick, of Hickory, North Carolina—reveals what it takes for them to make a profitable crop. It all starts with good soil, patience, and a strong planter setup.
Champions of Rural America is a half-hour dive into the legislative priorities for Rural America. Join us as we interview members of the Congressional Western Caucus to learn about efforts in Washington to preserve agriculture and tackles the most important topics in the ag industry on Champions of Rural America!
Featuring members of Congress, federal and state officials, ag and food leaders, farmers, and roundtable panelists for debates and discussions.
The goal of “Where the Food Comes From” is as simple as its name implies — host Chip Carter takes you along on the journey of where our food comes from — and we don’t just mean to the supermarket (though that’s part of the big picture!). But beyond where it comes from, how it gets there, and all the links in the chain that make that happen.
Join markets specialist Scott Shellady, better known as the Cow Guy, as he covers the market-close, breaking down headlines that drive the commodities and equities markets with commentary from respected industry heavyweights.