Fall Cattle Work: The September Calendar

September on a cow-calf operation isn't one task. It's weaning, pregnancy checks, and heifer decisions, often stacked in the same few weeks, and this year they're happening against unusual market conditions.

USDA's January 2026 cattle inventory report put the total U.S. cattle and calf count at 86.2 million head, the smallest national herd since 1951, a 75-year low. Beef cows were down 1 percent year over year to 27.6 million head, the calf crop down 2 percent to 32.9 million, and cattle on feed down 3 percent to 13.8 million. CattleFax's outlook for 2026, presented at its February seminar, forecasts an average fed steer price of $224 per hundredweight, holding roughly steady with 2025's $225. An 800-pound steer is projected around $335/cwt, a 550-pound steer around $440/cwt, utility cows around $155/cwt, and bred cows around $4,000 a head.

Texas A&M AgriLife Extension guidance from Dr. Ron Gill and Dr. Bruce Carpenter points to a clear difference between abrupt weaning and lower-stress methods like fence-line or nose-flap weaning. Research cited in that guidance found calves weaned across a fence line from their dams bawled 98 percent less, walked 78 percent less, ate 23 percent more, and rested 24 percent more than calves weaned the traditional way. Separate research found fence-line-weaned calves were 24 pounds heavier two weeks after weaning and 26 pounds heavier at ten weeks, compared to calves weaned by simple separation.

How early you can confirm a cow is bred depends on the method. Rectal palpation is reliable from about day 30 after breeding. Ultrasound can detect a fetal heartbeat around day 21, though it's more consistently accurate after day 25 to 28. Blood or milk tests that detect pregnancy-associated glycoproteins, marketed under names like BioPRYN, IDEXX, and DG29, are validated starting around day 25 to 29 post-breeding and run 98 to 99 percent accurate, according to research presented at Texas A&M's Beef Cattle Short Course.

AgriLife guidance from Dr. Rick Machen and Dr. Ron Gill lays out a standard preconditioning protocol: a minimum 45-day weaning period, two modified-live respiratory vaccinations 14 to 21 days apart, two 7-way clostridial vaccines on the same schedule, a Pasteurella or Mannheimia vaccine at the first round, and parasite treatment, targeting 1.0 to 1.5 pounds of gain per day. Vaccine and dewormer costs alone run a minimum of $12 to $20 a head, and keeping the feed and supplement budget at or under 35 cents a head per day holds the total program cost near $25 a head, not counting pasture, interest, or labor. Their rule of thumb: if the breakeven cost exceeds the calf's weaning value by more than $5 to $8 per hundredweight, get help pricing the program before committing to it.

The U.S. started 2026 with 4.7 million replacement heifers, the first slight increase in nine years, according to CattleFax's outlook. In Texas specifically, cow numbers dipped by roughly 30,000 head even as producers held back an estimated 50,000 more heifers than the year before, an early signal that the rebuild is underway but still slow. CattleFax doesn't expect meaningful national herd growth until 2027 at the earliest.

None of these decisions happen in isolation this fall. The weaning method affects how the preconditioning numbers pencil out, and that affects whether a given heifer is worth keeping instead of selling into a market this tight.

Texas A&M AgriLife Extension, Weaning Techniques for Beef Calves (Gill & Carpenter): https://agrilifeextension.tamu.edu/wp-content/uploads/2025/07/Weaning-Techniques-Ron-Gill.pdf

Texas A&M AgriLife Extension, Preparing Beef Calves for Market, ASWeb-123 (Machen & Gill): https://agrilifeextension.tamu.edu/wp-content/uploads/2025/07/Preparing-Calves-for-the-Market-Ron-Gill.pdf

Texas A&M Department of Animal Science, "Is That Cow Pregnant?" (Robert Fears): https://animalscience.tamu.edu/department-updates/is-that-cow-pregnant/

Drovers, CattleFax Provides Optimistic 2026 Price Outlook at CattleCon: https://www.drovers.com/markets/cattlefax-provides-optimistic-2026-price-outlook-cattlecon

USDA NASS, United States Cattle Inventory Down Slightly (Jan. 30, 2026): https://www.nass.usda.gov/Newsroom/2026/01-30-2026.php

AgriLife Today, Texas Beef Herd Signals Higher Prices Ahead for Producers and Consumers (Feb. 3, 2026): https://agrilifetoday.tamu.edu/2026/02/03/texas-beef-herd-signals-higher-prices-ahead-for-producers-and-consumers/