Fall vs Spring Calving: Hay Needs, Calf Prices and Labor

By the XES Netting team — bale net-wrap manufacturer · Updated October 13, 2026 · ~24 min read

Fall vs spring calving is really a choice about which season you want to pay for. A spring-calving cow is dry through early winter and generally needs less feed than a fall pair, although her needs rise in late gestation. Her calves arrive in late-winter or early-spring weather and are often sold in the fall, when prices for lightweight calves tend to be seasonally soft. A fall-calving cow avoids midwinter calving, though late-summer heat brings its own risks, and her calves are often sold in spring, when feeder calf prices usually hit their seasonal highs; but she nurses that calf through the winter, often on stored feed.

The difference shows up in December. Using Virginia Cooperative Extension’s requirements for a 1,200-pound cow, a cow in early lactation (where a fall calver is in December) needs about 19% more dry matter, 48% more energy and nearly twice the protein of a cow in mid-gestation (where a spring calver is). That gap has to be met with better hay, grazing, silage or supplement.

This guide is for commercial cow-calf producers deciding on a calving season, or wondering whether to change one. It compares the feed, weather, breeding, labor and marketing sides with Extension research and with what producers report after switching. It is not a ration or a health plan: test your hay, and work with your nutritionist and veterinarian. For the feed math behind a winter, see our guide to how much hay a cow eats; for the breeding side, preg checking cows and replacement heifers.

XES makes bale net wrap, and the calving season affects how much of a herd’s winter feed comes from stored hay, so we looked at it through the hay. We read 75 archived AgTalk and TheFarmingForum discussions about calving season (1,430 posts, nearly all from November 2022 to May 2026), then checked the claims against Extension publications from Mississippi State, Kansas State, Oklahoma State, Virginia Tech, the University of Arkansas and the University of Nebraska.

The calving calendar: what moves when you change seasons

Calving season is set the summer or winter before, when the bulls go in. Mississippi State University Extension’s calving-season guide uses a 283-day gestation: to start calving on September 1, bulls go in around November 22, and a calf born March 1 reaches 205 days of age on September 22. Running the same arithmetic for common start dates shows what else moves with the calving date:

Kansas State University’s Beef Cattle Institute adds the key timing fact: “A cow’s nutrient requirements peak around 60 days post-calving.” Cows that calve in September and October are therefore at their hungriest in November and December, and are being bred in December and January. Spring calvers hit the same peak from about April to June, when grass is growing. Weaning moves with the calendar too; our guide to weaning calves covers the methods for either season.

Winter hay: how much more a fall-calving cow needs

Oklahoma State University’s nutrient requirements fact sheet (May 2025) sums up lactation: an average milking beef cow “requires nearly 50% more TDN or net energy than when dry,” lactating cows in early lactation “require nearly twice the daily protein of dry cows,” and they eat considerably more of the same forage. Virginia Cooperative Extension’s winter-feeding guide puts numbers on it for a 1,200-pound cow of average milking ability, and notes that “spring calving herds have the lowest nutrient requirements during early winter while fall calving herds are at or near peak nutritional needs”:

Two things follow. First, quantity: at those two stages, the nursing cow needs about 4.5 pounds more dry matter a day, which would be about 5.1 pounds of hay as fed if all of it came from 88% dry matter hay (XES calculation). That is a snapshot of two stages, not a whole-winter total: both cows change stages over the winter, and grazing, silage or supplement can supply part of the difference.

Second, and more important, quality. The table’s mid-gestation diet target is about 49% TDN and 7% protein, against about 61% TDN and 10.6% protein for a cow at peak lactation; whether hay meets either also depends on how much dry matter the cow can eat. In the same Virginia publication, energy was the main shortfall for late-gestation and lactating cows across 61 farm hay samples, and in 51 of the 61 the fiber was high enough to limit how much a cow could eat. The authors concluded that it is “near impossible to meet the energy needs of cows after they calve on hay alone.” Their requirement figures also leave out weather: mud, wet hair coats and very low temperatures, they note, can add significantly to a cow’s energy needs.

Producers who run fall-calving herds say the same thing in plainer words. A north-central Missouri producer wrote in March 2026:

"Takes better feed to keep a fall pair in good shape and growing through the winter. If I had better feed I would move towards more fall cows."

— T-rowe, North central MO · AgTalk thread 1231124

How much more feed that adds up to over a whole winter is where producers disagree. A northeast Missouri producer who calves from August 1 gave his estimate in April 2024:

"We’re 85-90% done before the combine starts and the breeding is done in November so the heat is out of the way. It does take probably 15% more feed to get them through the winter but my calves are generally heavier at weaning than my spring calves were."

— JGS, NEMO · AgTalk thread 1154809

A north Missouri producer argued in December 2022 that the total is not so different, it just moves around the calendar:

"Our breed back is spectacular but we haul a ton of feed out. … Feed use is not much different than spring cows it just gets flipped. Feed them hard during breeding then knock calves off and go on the second tier hay while calves get premo feed."

— 6030Deere, N MO · AgTalk thread 1092116

That strategy is the practical answer to the quality problem: save the best hay, baleage or supplement for fall pairs from calving through breeding, then wean and drop back to lower-quality hay for the dry cows. Not everyone sees a big difference at all: a Saronville, Nebraska producer who switched to fall calving five years earlier wrote in March 2026 that his herd does not feed much more than it did when it calved in spring.

Grazing does the same job where it is available (see our guide to stockpiling forage for winter grazing). A Shenandoah Valley, Virginia producer wrote in March 2025 that pairs run on fall stockpile into January, so his herd only needs hay for three to four months. A southeast Colorado producer wrote in March 2026 that he fall calves precisely because winter is when he has the most good-quality grazing, and that it would not work if snow covered it more often. Without that grazing, the feed has to come from somewhere. In May 2024 a producer whose cows start calving in late September described starting ground ear corn or distillers about mid-January in years his first cutting was late, but being able to wait until mid-February when the fescue was cut on time.

Cornstalks are the other common fall-calver feed, and winter lactation on stalks needs watching whichever way a cow got there. In January 2024 a Nebraska producer asked whether he could leave 500- to 600-pound calves on their May-calving mothers on cornstalks until late February; an Iowa poster replied that it was time to wean, that “anything nursing a calf requires lactation calories and hay has very little,” and that the cows were one cold, snowy spell away from losing condition fast.

A northeast Nebraska producer who calves from August 10 wrote in May 2024 that he keeps free-choice hay in bale rings on his stalks for when a cold snap or snow covers the field. If you plan to winter pairs on residue, see our guides to grazing vs baling cornstalks and distillers grains for cattle, which includes Nebraska’s supplement rates for fall calvers on stalks.

Whatever the season, test the hay before you build the winter around it. Our guide to reading a hay test shows how to compare TDN and protein with the requirements above, and corn silage for beef cows covers one way to close an energy gap.

Calf prices: when you sell matters as much as when you calve

Most U.S. calves are born in spring and weaned in fall, so the fall calf market is crowded. University of Arkansas livestock marketing specialist James Mitchell’s 10-year seasonal index for 500- to 600-pound Arkansas steers (September 2021) shows the result: prices averaged about 6% above the annual average in March, stayed above it through May, and bottomed in September at 94.6% of the annual average. Heavier 700- to 800-pound steers had a flatter pattern, with highs of 101.6 in March and lows of 98.6 in December.

Put another way, if that weight class averaged $100 over the year, the index puts March at about $106 and September at about $94.60. That compares average prices for one weight class in one state over 10 years, not the same calf sold at two ages, and local patterns vary by region, weight and sale date.

Oklahoma State University’s Scott Clawson noted in August 2025 that even in 2023, when calf prices were pushing to new levels, the calf market paused in the fall while it absorbed the extra supply, and that seasonality points to softer fall prices for cull cows as well as calves. K-State economist Dustin Pendell put the trade-off for fall calving in one line in September 2024: spring-sold calves “may earn a higher price per pound,” “but the tradeoff is the expense of additional feed needed during the wintertime for the fall-calving cows.”

Producers’ experience depends heavily on region and on what the calves weigh when they sell. A southwest South Dakota rancher opened a January 2023 thread with two neighbors’ sale results: three loads of March-born steers averaging 730 pounds brought $1,378 a head, and three loads of May-born steers averaging 598 pounds brought $1,358, so the extra 130 pounds earned about 15 cents a pound, and the heavier steers had been fed a hotter ration (“48 megacal” against “40 megacal,” in his words). Later in the same January 2023 thread he explained what he took from it:

"I spent the first 25 years of my ranching career calving in March, pushing the steers to weigh 800 by Jan 1st and then watched 550 pound steers sell at the same sale bring within dollars per head of ours. For the last 15 years I decided in my situation it would be better to push the easy button."

— Big Swede, SW So Dakota · AgTalk thread 1095470

Farther south the arithmetic can run the other way, because fall-born calves can graze winter pasture. A north-central Texas producer wrote in April 2024:

"There is always something green and wheat doesn't go dormant if you have calves to graze. … Normal for good fall born calves to wean at 7wts and spring at 6wts. Less problems with fall born and they always bring more per head than spring calves."

— ntexcotton, North Central Texas · AgTalk thread 1155093

And where summers are hot, the market and the breeding season pull in opposite directions, as a central North Carolina producer put it in March 2024:

"The problem with the best grass time for some is you end up with the worst calf marketing time. Have to balance the two. Here fall markets are normally lowest and can be very off some years. Also here it is too hot to breed in summer."

— Douglas, Central North Carolina · AgTalk thread 1154007

The cows themselves are priced by season too. University of Nebraska–Lincoln Extension educator Aaron Berger noted in 2019 that Nebraska bred cows of the same age and quality are valued differently depending on when they calve, so moving a herd out of a favored season can lower its market value, and that cull cow prices tend to hit annual lows in fall and rise into spring. Producers in the forums agree: a central South Dakota producer wrote in July 2025 that fall calvers are not worth as much there as farther south, and a Nebraska buyer reported in March 2023 that May- and June-calving bred cows were bringing about slaughter-cow price at his local sale.

Calving weather, scours and pneumonia

Bad weather is a common reason producers change calving seasons. K-State veterinarian Brian Lubbers said in September 2024 that fall calving brings more moderate weather than January and February calving, which “can reduce the disease pressure of scours.” Nebraska’s Berger wrote his 2019 list after a severe winter and spring prompted many producers to look at moving their calving date. The forum stories that follow storms are blunt. A Nebraska producer who now calves in April wrote in March 2025 about a year, about 2007 by his recollection, when he ran February calvers beside a group of short-term cows due April 1:

"Winter weather claimed 20% of the February calves and it wasn’t like I wasn’t trying, it was just a brutal February and I didn’t have much for facilities at the time. The February cows took $120/hd more feed than the Aprils and obviously more labor. … Preg rates have been similar regardless of start time."

— J HL, Nebraska · AgTalk thread 1193693

Moving later into spring does not escape every storm. A southwest South Dakota rancher wrote in December 2022:

"What I have discovered in the last 15 years is that Mothers Day weekend can be a rough time of year to be getting over 20 calves a day. Cold wet rain events and several blizzards in some years has caused high enough death loss to have led me to hold the Bulls till May 8th."

— Big Swede, SW So Dakota · AgTalk thread 1092116

Mud is the other spring enemy. A northeast North Dakota producer who calves from late February to mid-April said in February 2024 that his cows handle cold if they can get out of the wind, and that mud gives him more trouble than cold even at 20 below. A west-central Iowa producer who used to calve from mid-April to late May described planting, mud, snow and then scours in calves stressed by cold and mud, and in March 2025 called his move to late-May calving an eye-opener. A southern Michigan producer wrote that month:

"My experience is that cold mud is a death sentence for young calves. Not just mud but cold mud. I assume it must zap their body heat out pretty quick. I delayed my calving season a month for this reason."

— WeatherBug, Bottom of the Mitten · AgTalk thread 1193708

Fall calving has its own health pattern. Respiratory disease in young fall calves comes up repeatedly, usually blamed on hot days and cool nights. A northeast Nebraska producer wrote in March 2026:

"Start Aug 10th here for 60 days. Want a big calf going into winter. No creep, just keep free choice bales available on cornstalks. Only problem I’ve had is pneumonia in the calves with the hot days and cool nights."

— Bonanza, Ne Nebraska · AgTalk thread 1231124

A north-central Texas producer whose herd now calves mostly from mid-January to early March, with open cows moved to a fall group, reported the reverse of the Midwest pattern in February 2024: less sickness in his winter-born calves, more in calves born during warm fall spells, which he linked partly to dry, dusty conditions. These are producer observations, not research results; your veterinarian is the right person to plan vaccinations and treatment around a new calving season.

Breeding season: heat, cold and forage

Every calving season is also a breeding season nine months earlier, and that is often where the decision is won or lost. Mississippi State’s guide, revised in 2025, says heat stress depresses bovine fertility in both sexes: in Mississippi, conception rates are “greatly depressed in July, while late-spring conception rates are three to five times higher,” and bulls under heat stress for as little as 12 hours can have impaired sperm production that takes 6 to 8 weeks to recover. It also notes lower late-fall and winter fertility in cows with Brahman influence.

Later spring calving moves breeding into late summer, when pasture quality is falling. Nebraska’s Berger points out that forage quality on pasture and range tends to peak in late May and June and decline from July, that peak lactation falls right before breeding, and that first-calf heifers and young cows may need strategic supplementation to breed on a declining plane of nutrition. Producers at both ends of the range describe the same limit. A southwest Oklahoma producer wrote in December 2022:

"I’m a long way from you, but when I started calving when the bison in my area do life got much easier and profits grew. For “here” that is the 15 th of April. Before that I was calving in February. I tried may and June calving but conception in august was not good enough for me."

— 2hcattle, Southwest OK · AgTalk thread 1092116

A northeast Colorado producer wrote in the same December 2022 thread that August is his driest month with the least forage growth, and that he was afraid of giving up conception by moving later; a west-central Iowa producer who moved to late-May calving said in March 2025 that summer breeding temperatures are manageable as long as the cows have shade.

Fall calving has the opposite risk: breeding in winter. K-State’s Phillip Lancaster notes that fall calvers are typically bred in December and January, and that cows coming off good summer pasture often reach calving at a body condition score of 6, which lets them lose some weight after breeding. In the northern states, cold is the problem. A McCanna, North Dakota producer said in February 2024 that he would not try fall calving because breeding would fall in potentially below-zero weather, and an eastern Washington rancher estimated in December 2022 that his operation had culled about $50,000 worth of bulls because of cold weather in the 15 years since moving to fall calving with December bull turnout.

Labor and the rest of the farm

On diversified farms, the calving season has to fit around planting and harvest. K-State’s Lubbers said that for diversified livestock and crop operations, fall is a busy time and the labor may not be there to monitor a fall-calving herd, and that pre-calving vaccinations, most effective about three months before calving, mean extra cattle work while fall calvers are on summer pasture. Producers come down on both sides. A northwest Iowa producer wrote in March 2026:

"I lke calving Jan-feb, no other jobs to be doing. I wouldn't want to calf and have to be combining or planting. I have facilities and want to sell 750lb calves in dec with no creep or grain."

— Massey1155, NW Iowa · AgTalk thread 1231124

In the same March 2026 thread, a central Missouri producer with a day job said he went to all fall calving partly so he can check cows in daylight after work, and because he struggled to get spring-calving cows bred back in summer, while a Frederick, Maryland producer was moving his small fall group to January because September is still hot there and too close to combining. A McCanna, North Dakota producer calves from the first week of June because he has no barns and no time during planting.

Summer calving: the third option

In the Northern Plains, the best-documented alternative to both is calving in late spring or summer, on grass. University of Nebraska researchers compared calving seasons at the Gudmundsen Sandhills Laboratory:

Producers who calve on grass describe the same trade. A southwest Minnesota producer recalled in April 2023:

"I liked the June 1 calving on grass. Turn out the cows and go fishing. … Turned the bulls in august 23, late enough heat was not a problem for breed back. … Stretched the calves out on a grower ration and could hit the Dec/ Jan fat market, sure beats selling in august, September and October most years."

— Hick, Sw mn · AgTalk thread 1110393

The lighter calves and the later sale are the price of the savings, so summer calving usually pairs with keeping calves longer: as yearlings, or on a growing ration (see our backgrounding guide). It fits best where grass is plentiful from late spring through summer, as in the Sandhills studies. Mississippi State, by contrast, says calving during the hot summer months is generally not recommended in Mississippi, where summer-born calves are significantly lighter at weaning than calves born the rest of the year.

How to change your calving season

Many producers make the change in stages; others switch faster by selling and buying cows. Mississippi State says a controlled calving season starts with a controlled breeding season, which means removing bulls on a set date, and its sample plan takes three years to move a year-round herd to a 90-day season calving January through March. A north-central Missouri producer put the case against rushing bluntly in February 2026:

"Trying to turn a year around calving herd into a 50 day calving window in 1 year will be an absolute train wreck. Your cow turn over will be to high. … If you’re talking 100s of cows it takes years to get to a 50 day calving window."

— T-rowe, North central MO · AgTalk thread 1230060

The methods producers describe fall into five groups:

1. Move bull turnout a few weeks a year. An eastern South Dakota producer who used to turn bulls out June 25 for an April 1 start lost calves to a stretch of freezing rain and snow in early April about a decade earlier, and moved turnout to July 10 for an April 15 start. He reported in December 2022 that his big group of calves sold heavier on the same date that year even though they were two weeks younger.
2. Run two seasons and roll cows between them. Mississippi State notes that two defined seasons let open cows move to the other season without missing a whole production cycle. A west-central Illinois producer wrote in July 2025 that late-bred cows in his spring herd are demoted to the fall herd, and that a cow that falls out of the fall herd too is “the end of the line.” An Iowa producer laid out the same sort in February 2026: define the spring breeding season, keep the pregnant cows as the spring group, and move every open cow to a defined fall breeding season.
3. Sell and buy to switch fast. A Farmington, Missouri producer whose herd had shifted over time from two-thirds spring to two-thirds fall calving wrote in March 2026 that he sold his last 40 spring-bred cows in December and is now all fall calving. Buying bred cows that already fit is the other fast route, but sale-barn calving dates are not guaranteed: a producer at the top of Texas who bought seven cows at a December bred-cow sale, advertised as March-April calvers, reported in May 2024 that calves had arrived from January to mid-May, with one cow still to calve.
4. Sell the late calvers. A northeast Nebraska producer who leaves bulls in for about 90 days wrote in June 2023 that he takes cows that have not calved about 60 days into calving to the sale barn, and that after a year or two the late-bred numbers dwindle.
5. Calve the late ones somewhere easier. Some producers keep late calvers instead, and calve them on pasture. A producer east of Broken Bow wrote in June 2023:

"Took the late calvers to pasture to calve. None stuck in the mud, none chilled, and when we sold them, they brought almost as much as our first cut of steers. … That 10% of the herd ate less over the winter, the calves ate less after weaning, and they brought within $25 per head as our first cut."

— HuskerJ, East of Broken Bow · AgTalk thread 1115147

Nebraska’s Berger adds three cautions: the cows that did well in one season may not breed as well in another, so genetics may need to change; moving cows out of a favored season can reduce their sale value; and it helps to talk with someone who has already made the move. Pregnancy checking is what makes any of these methods work, because it tells you which cows to roll, sell or keep; see our guide to preg checking cows.

A calving-season decision worksheet

Work down the questions and note which way each answer pushes. If most point one way, that season probably fits your place better than the one you have.

Frequently asked questions

Is fall or spring calving better?

Neither is better everywhere. Spring calvers are dry in early winter and need less from winter feed, but calves arrive in late-winter weather and often sell into soft fall prices. Fall calving avoids midwinter calving and usually means a spring sale, but cows nurse through winter on better feed. Match the season to your feed, labor and market.

Do fall-calving cows need more winter feed?

At peak lactation, yes, and better feed. Virginia Cooperative Extension’s table for a 1,200-pound cow puts early lactation at 27.8 pounds of dry matter a day at 61% TDN and 10.6% protein, against 23.3 pounds at 49% TDN and 6.9% protein in mid-gestation. Stockpiled grass, cornstalks, silage or supplement can cover part of that gap.

When should bulls go in for fall calving?

Count back 283 days, the gestation length Mississippi State University Extension uses. To start calving September 1, bulls go in around November 22; for an October 1 start, around December 22 (dates for a non-leap year). Pulling bulls on a set date after 60 days keeps the calving season about the same length.

Do fall-born calves sell for more?

They may earn a higher price per pound, because they usually sell in spring, when fewer calves come to market. A 10-year index for 500- to 600-pound Arkansas steers ran about 6% above the annual average in March and bottomed at 94.6% in September; local patterns vary. Calf weight and the extra winter feed decide whether it pays.

How do you switch from spring to fall calving?

Many producers go in stages: set defined breeding seasons, then move open or late-bred spring cows into a fall group. The fast route: sell cows that don’t fit and buy bred cows that do. Mississippi State’s example takes three years to bring a year-round herd to a 90-day season, and producers warn that rushing it means too much cow turnover.

The bottom line on fall vs spring calving

Fall vs spring calving comes down to which costs you would rather carry. Spring calving keeps winter nutrient needs low and puts the risk on calving weather and the fall calf market. Fall calving moves calving out of midwinter and calf sales into spring, but puts a nursing cow’s peak needs, about 19% more dry matter and nearly twice the protein of a mid-gestation cow, into the months you feed stored forage. Summer calving cut harvested feed sharply against March calving in Nebraska’s Sandhills, at the cost of lighter calves. Price your own feed, labor and markets. For a major whole-herd shift, expect a staged change over several years unless you are prepared to sell and buy cows; smaller date changes can be made by moving bull turnout.

Whichever season you choose, stored forage carries the herd through at least part of the winter, and for many herds that means round bales. How much to budget depends on your cows’ requirements and on the storage and feeding losses on your own farm; to size the winter, see how much hay a cow eats, and to keep it, how to store round bale hay and how to reduce round bale feeding waste.

If you bale your own hay, XES Extreme bale net wrap was tested by DLG (Report 7439), which rated its edge-to-edge bale coverage as good in practical use.

Research note: We read 75 archived discussions about calving season on AgTalk and TheFarmingForum (1,430 posts, nearly all from November 2022 to May 2026; 24 with calving season in the title), then checked them in October 2026 against the Extension sources linked below. Producer figures are what individual producers reported at the time and, where stated, the place given; they are examples, not averages. Figures marked as XES calculations use the assumptions stated with them. XES sells bale net wrap; nothing here replaces a ration balanced by a nutritionist or a herd-health plan from your veterinarian. Sources: Mississippi State University Extension, Calving Season Selection Considerations (P2501, 2025); K-State Research and Extension, Cattle Chat: Fall calving considerations (September 2024); Oklahoma State University, Nutrient Requirements of Beef Cattle (E-974, May 2025); Virginia Cooperative Extension, Planning the Feeding of Your Beef Herd This Winter (2009); James Mitchell, University of Arkansas, Feeder Cattle Price Seasonality (2021); Oklahoma State University, Seasonality in 2025; Nebraska Extension BeefWatch, Ten Things to Consider When Evaluating Moving Calving Date (2019); Nebraska Beef Cattle Reports 1998 and 2001.

Featured photograph: Dec 2010 CP Snow 013 Cow Calf, Virginia State Parks staff, December 28, 2010, Chippokes State Park, Virginia, licensed under CC BY 2.0, via Wikimedia Commons. A cow and her young calf nose for grass through snow on a fenced pasture. Image unchanged apart from display resizing.