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
The National Cattlemen’s Beef Association and Public Lands Council published a joint press release regarding the advancement of legislation to delist the Mexican Gray Wolf from the Endangered Species Act.
Placements and marketings beat expectations, but declining on-feed totals and feeder constraints keep the supply story supportive for cattle prices into 2026.
USDA Rural Development Director for Kentucky, Travis Burton, joined us to discuss the Princeton facility (formerly Porter Road Meats), now backed by the USDA, and its role in expanding domestic meat processing capacity.
Farm CPA Paul Neiffer joined us to break down the recent Fifth Circuit Court decision overturning a prior Tax Court decision on self-employment tax for limited partners, the ruling’s impact on farmers, and potential next steps in Congress.
Pennsylvania Farm Show scholarship recipient Elizabeth Dice discusses her award, her background in farming, and her path forward in the agriculture industry.
Nearly everyone in the South Texas ag community appears extremely worried about the potential of a New World screwworm epidemic, according to a local veterinarian. RFD NEWS Correspondent Frank McCaffrey reports.
Large-scale land purchases signal rising competition for ranchland, reinforcing its value while reshaping long-term access and control in rural agriculture.
Brian Earnest, an animal protein economist with CoBank, shares insights into current demand trends and the challenges facing broiler production.
While row crops are expected to see softer impacts, analysts say severe weather of this magnitude will not be as kind to cattle producers.

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:

Rural population growth and stabilizing economic indicators point to post-pandemic recovery, but uneven income, shifting industries, and regional divides remain key challenges for rural communities.
Moderate oil prices may ease fuel costs, but continued caution in the energy sector could limit rural economic growth.
Decoupled base acres may amplify income inequality and distort planting decisions as farm program payments increase.
Large Brazilian crops heighten downside price risk if the weather allows production to reach projected levels.
Oil-led rallies can move soybean prices quickly, but sustained gains will require continued strength in soybean oil and broader biofuel demand signals.
Analysts say a Supreme Court decision on tariffs could reshape protein markets, strain U.S.-China trade, and force farmers to rethink global demand strategies.
Agriculture Shows
Special 3-part series tells the story of the Claas family’s legacy, which changed agriculture forever.
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.