Feeding Corn to Beef Cattle (2024)

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(AS1238, Reviewed May 2018)

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Feeding Corn to Beef Cattle

Summary

Corn commonly is used as a feed grain in beef cattle diets throughout the U.S. However, until recently in many parts of North Dakota and other northern-tier states, feeding corn was less common. With the availability and improvement of shorter-season corn varieties, corn plantings in North Dakota increased nearly 40 percent from 2008 to 2017. In 2017, 427 million bushels of corn were produced in North Dakota. This has resulted in more interest in using corn as a feedstuff for beef cattle.

Lead Author

Lead Author:

Greg Lardy, Department Head Animal Sciences Department

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Web only

Publication Sections

Table of Contents

Feeding Value of Corn

Use of Corn in Rations for Beef Cattle

Processing Corn

Effect of Corn Bushel Weight on Cattle Performance

High-moisture Corn

Immature and Frost-damaged Corn

Summary

Feeding Value of Corn

Compared with other feed grains, corn is lower in protein and slightly higher in energy(Table 1). Corn contains approximately 72 percent starch on a dry-matter basis. Other important fractions in the corn kernel include protein, fiber and minerals.

Table 1. Nutrient content of various feed grains.
BarleyCornWheatOatsSorghumField Peas
Dry Matter Basis
Energy
TDN, %84.187.686.883.086.080.0
NEm (Mcal/kg)2.062.172.152.032.121.94
NEg (Mcal/kg)1.401.491.471.371.451.30
Protein
Crude Protein (%)12.88.813.812.611.623.9
Undegradable protein (% of CP)50.865.335.656.571.115.5
Fiber
Neutral detergent fiber (%)18.39.712.426.77.213.7
Acid Detergent fiber (%)7.13.64.213.34.69.2

Source: National Academy of Sciences, Engineering, and Medicine, 2016

TDN = Total Digestible nutrients

NEm = Net energy for maintenance

NEg = Neg energy for gain

The protein in corn is approximately 65 percent escape or bypass protein. Escape protein is protein that is not fermented or degraded by the ruminal microorganisms, but is digested and absorbed by the animal in the small intestine. The remaining 35 percent of the protein in corn is rumen-degradable protein. Ruminal microorganisms require rumen-degradable protein for use in growth and protein synthesis.

Most research with corn indicates a substantial benefit to providing rumen-degradable protein in diets containing corn. Backgrounding or finishing diets containing high levels of corn require supplemental rumen-degradable protein in the form of nonprotein nitrogen (urea or biuret); natural protein sources such as sunflower meal, canola meal or soybean meal; or a combination of nonprotein nitrogen and natural protein.

Like all cereal grains, corn is low in calcium and relatively high in phosphorus(Table 2). Diets containing high levels of corn should include a supplemental calcium source, such as limestone, to prevent urinary calculi. The recommended calcium-to-phosphorus ratio in backgrounding and feedlot diets is a minimum of 2-to-1 (two parts calcium to one part phosphorus).

Table 2. Mineral content of major cereal grains.
BarleyCornWheatOatsSorghumPeas
Calcium, %0.080.030.080.100.060.13
Phosphorus, %0.380.290.360.380.340.42
Potassium, %0.530.370.430.500.391.07
Magnesium, %0.130.110.130.140.150.18
Sodium, %0.020.030.020.020.120.03
Copper, ppm6.122.635.446.184.958.80
Iron, ppm99.450.060.28105.0342.94112.70
Manganese, ppm21.97.5842.9650.2920.1121.47
Selenium, ppm1.00.61----0.6500
Molybdenum, ppm1.370.170.651.700.760.81
Source: Nation Academy of Sciences, Engineering, and Medicine 2016

Table 3lists the nutrient content of corn harvested, stored or processed by different methods. In general, different harvest, storage and processing conditions do not result in large differences in nutrient content. The advantages and disadvantages of the different harvest, storage and processing methods are discussed in detail later in this publication.

Table 3. Nutrient content of corn using different harvest, storage or processing methods.
Corn TypeDry MatterTDN, %NEm, Mcal/lbNEg, Mcal/lbCP, %Escape Protein, % of CP
Dry rolled corn87880.990.688.865
High-moisture corn70901.020.718.855
Stream-flaked corn81951.080.768.570
Ear corn83850.950.648.364
Earlage63840.950.648.149
Snaplage59820.910.618.145
Source: Nation Academy of Sciences, Engineering, and Medicine 2016

Use of Corn in Rations for Beef Cattle

Corn can be used in many different types of backgrounding and finishing diets, and it can serve as a supplement in forage-based diets for beef cows. However, corn is relatively low in protein and high in starch, which can affect forage utilization negatively, especially in diets based on lower-quality forages.

Consequently, corn grain should be used in forage-based diets at relatively low levels (less than 0.4 percent of body weight). When corn is used as a forage supplement, ensuring adequate rumen-degradable protein is available is important to prevent any depressions in forage digestibility.

Corn can serve as the sole grain source in backgrounding and finishing diets. Depending on desired cattle performance, the level of corn can be varied to supply additional energy in the diet of growing and finishing cattle. However, supplemental protein is needed in most corn-based backgrounding and finishing diets because of corn’s low crude protein content.

Processing Corn

Even though corn can be fed whole with satisfactory results, cracking or rolling prior to feeding will increase digestibility by 5 to 10 percent. In most instances, grinding or rolling corn will not markedly improve average daily gain, but proper processing will improve feed conversion efficiency.

As the proportion of corn in the diet and the cost of corn increase, the benefits of processing also increase because corn is supplying a greater portion of the energy. When corn is fed whole, the animal must process the corn by mastication (chewing). Rolling or cracking corn for use in a mixed ration may facilitate better mixing.

Figure 1shows the relative rates of fermentation for various corn processing methods. Fine grinding corn should be avoided in beef cattle diets because fine-ground corn ferments quickly in the rumen. When feeding high levels of finely ground corn, digestive disturbances, acidosis and founder can occur.

Figure 1. Effect of corn processing on relative rates of ruminal starch digestion.
RateProcessing Method

Fast

High-moisture corn (ground and stored in a bunker)

Steam-flaked corn

High moisture corn (stored whole)

Dry rolled corn

Slow

Dry whole corn

Adapted from Stock and Britton (1993)

Effect of Corn Bushel Weight on Cattle Performance

Most research with light test weight corn indicates that it has similar feeding value to higher test weight grain. Data from the University of Nebraska indicate light test weight corn (46 to 48 pounds per bushel) has similar feeding value as normal test weight corn (55 to 56 pounds per bushel). Research conducted at South Dakota State University indicates that the net energy value of low test weight corn may be slightly higher than normal test weight corn.

High-moisture Corn

Corn can be harvested wet and stored as high-moisture corn. For corn to be used in this manner, it should be harvested at 22 to 32 percent moisture for optimum storage. High-moisture corn is similar in energy and protein content to dry corn and offers several harvest advantages:

  • Yields typically are increased due to less ear drop in the field.
  • High-moisture corn allows for an earlier corn harvest, avoiding difficulties associated with adverse weather.
  • No drying costs are encountered.

Producers also should realize that high-moisture corn has some disadvantages. compared with dry corn:

  • Marketing alternatives are limited. High-moisture corn that is ground or rolled will be marketable only through ruminant livestock.
  • High-moisture corn may require additional storage and processing equipment.
  • Improperly ensiled high-moisture corn will result in excessive spoilage and storage losses.

High-moisture corn must be stored in an airtight silo (bunker, silage bags or oxygen-limiting structure). For optimum storage and utilization, it should be processed (ground or rolled) prior to storage. Grinding or rolling and subsequent packing of the corn facilitates oxygen exclusion in the silo.

For more information on harvesting and storing high-moisture corn, see NDSU Extension publication AS1404, “Harvesting, Storing and Feeding High-moisture Corn.”

Immature and Frost-damaged Corn

In some cases, due to late planting or early frost, corn may need to be harvested before it is mature.

The nutrient content of immature corn can be considerably different than mature corn. Table 4 compares the nutrient content of corn at various stages of maturity. In addition, harvesting may be difficult. Immature corn can be harvested as ear or snapped corn after it is dry, or it may be harvested wet and stored in a silo structure as earlage.

Frost-damaged corn is generally lower in test weight than normal corn. However, feeding value is generally not markedly reduced. Frost-damaged corn should be analyzed for nutrient content prior to feeding.

Summary

Corn is a useful feed ingredient. It is high in energy but relatively low in protein, compared with other feed grains. For optimum dietary utilization, corn should be processed by rolling, cracking or coarsely grinding prior to feeding. The decision to process corn should be based on efficiencies gained from processing, compared with the cost of processing.

Revised May 2018

Feeding Corn to Beef Cattle (2024)

FAQs

What is the problem with feeding corn to cattle? ›

The addition of corn to the diet of a steer changes the chemistry of its digestive system and leads to serious illnesses, including bloat and acidosis.

How much corn should I feed my cow? ›

To maintain maximal forage utilization, corn should not be supplemented at more than 0.25% of body weight. This equates to 2.5 lb for a 1000-lb cow, 3 lb for a 1200- lb cow, and 3.5 lb for a 1400-lb cow. These recommen- dations are based on whole shelled corn.

How do you feed corn to cattle? ›

Even though corn can be fed whole with satisfactory results, cracking or rolling prior to feeding will increase digestibility by 5 to 10 percent. In most instances, grinding or rolling corn will not markedly improve average daily gain, but proper processing will improve feed conversion efficiency.

What is the best feed for beef cattle? ›

Corn has the highest energy value and is likely the most economical grain in corn-producing localities. Corn, oats, and barley are the primary grains fed to cattle. Oats, which has a lower energy value due to its high fiber content, is considered the "safest" grain in regards to potential digestive disturbances.

Is corn good for beef cattle? ›

Corn can be used in many different types of backgrounding and finishing diets, and it can serve as a supplement in forage-based diets for beef cows. However, corn is relatively low in protein and high in starch, which can affect forage utilization negatively, especially in diets based on lower-quality forages.

Can you feed straight corn to cattle? ›

Cows can be fed whole corn as a supplement. Corn would be considered an energy feed and therefore an energy supplement. In high forage cow diets, I would not feed more than 3 to 4 lb per head per day.

Will corn fatten a cow? ›

Not only do cattle fed corn gain weight faster, but their meat contains more marbling, or fat, along with a more consistent taste. In contrast, meat from grass-fed beef contains fewer calories and far less fat.

How much grain should I feed my beef cow per day? ›

10-15 lbs. per day of corn, oats or barley fed to grazing cattle is a good finishing ration. This fed to a 900-1000 pound steer for 3-4 months should will you a nicely finished animal. If you do not have access to pasture or if you are finishing during the winter, you might increase the amount of grain to 15-18 lbs.

Is whole corn or cracked corn better for cattle? ›

Overall, ADG, feed efficiency, and starch digestibility of the corn being fed to feedlot cattle did not differ when fed as whole shelled corn or dry processed corn, regardless of the small appearance of whole corn kernels present in the manure.

Can you feed wet corn to cattle? ›

A summary of 14 experiments showed high-moisture ground ear corn increased gains by 3 percent and feed efficiency by 10 percent over dry ground ear corn. High-moisture ear corn makes a palatable, complete finishing ration for beef cattle.

What is the best feed for cattle weight gain? ›

FEEDING FOR WEIGHT GAIN

At the cow-calf level, when fed properly, whole cottonseed and corn are ingredients he recommends often because they are energy dense and high in fat.

What can I mix with corn for cattle feed? ›

Starting cattle on feed

Roughages that are satisfactory for mixing with whole-shelled corn in self- feeders to start cattle include cottonseed hulls, corn cobs, ground hay, rice hulls, and pelleted roughages.

What is the cheapest way to feed cattle? ›

“Corn residue is one of the lowest cost forages on a cost per pound of energy. That's why mixing a high energy and protein feed like distillers' grains with a low quality forage like corn stalks is so cost effective. Distillers' is often a low-cost source of both energy and protein.

How often should beef cattle be fed? ›

In feedlots where once/day feeding isn't feasible, or in commercial feedlots, three/day feeding seems most economical.

What is the most important nutrient for beef cattle? ›

Beef cattle need water, protein, carbohydrates, fats, minerals, and vitamins. Of these nutrients, they require water in the greatest amounts daily.

Why is corn fed beef better? ›

Most importantly, corn fed beef tastes better. Cows don't fatten up on grass the way that they do on corn. So incorporating corn into a cow's diet results in amazingly marbled, juicy steaks. You simply can't get that marbling and flavor in beef from grass-fed cows.

Do grass fed beef eat corn? ›

"Grass fed" generally means that the animal has not been put in a feedlot and raised on a predetermined diet which often includes corn, barley and other grains in abundance.

Why are cows fed corn instead of grass? ›

Cattle are fed grains like corn because they are nutritious, energy-rich, and can be stored for use throughout the year. Because grass does not grow year-round in most of the United States, feeding grains like corn to cattle helps farmers and ranchers raise a consistent, year-round supply of great tasting beef.

Can you give cattle too much grain? ›

Ruminants should not be allowed access to large amounts of grain. Unaccustomed ingestion of large amounts of grain can lead to severe illness and possibly death in ruminants. Treatment of severe cases requires removal of rumen contents by rumenotomy or rumen lavage, accompanied by IV fluid therapy.

Is rolled corn good for cattle? ›

Feeding rolled corn increases digestibility by 5 to 10 percent and equates to faster growth in cattle due to the higher energy concentration of the diet. However, higher digestibility of starch can lead to digestive upsets such as acidosis which can reduce performance slightly.

What puts weight on cows fast? ›

1. Add Grain into Their Daily Diet. While your cattle likely make their primary diet of hay and grass forage, adding some healthy grains too can increase their weight substantially over time. Grain won't from the basis of your herd's nutrition, but the calorically-dense food can provide a boost to cattle weight.

How do you fatten up a beef cow quickly? ›

What is the best feed for fattening cattle? Barley is the best grain for lot feeding cattle, but wheat, triticale, sorghum, maize, and oats can be used. Oats is not an ideal grain on its own for cattle fattening but can be used with any of the other grains. Hay or silage could be used as the roughage source.

Is a corn fed cow more fatty? ›

Grass-fed cows almost always have less total fat in their meat than corn-fed cows.

Do you have to feed cows grain everyday? ›

The grain finished cattle need to be checked regularly and fed daily. They live in the pasture their entire lives and also receive natural grain during the last 6 months of their life. It's up to them on if they eat the grass or grain.

How many times a day should I feed my cattle? ›

Traditionally most dairy producers provide a total mixed ration (TMR) to their lactating dairy cattle twice per day (2x). However, many producers are electing to feed their cows only once per day (1x), as a means of reducing labour costs.

How much grain does it take to fatten up a cow? ›

At the feedlot, cows gain an average of one pound per six pounds of feed they consume. Market weight is approximately 1,200 – 1,400 pounds at an age of 18 – 22 months. What a lot of people who are looking to exaggerate numbers like to do is calculate the 6 pounds of grain for the ENTIRE weight of the animal.

How many pounds of feed does it take to make 1 pound of beef? ›

10.6 lbs feed per pound of edible beef.

Can deer corn hurt cattle? ›

Feeding cattle corn or other cereal grains, or their by-products does not kill the animal. Feeding these grains as 100% of the diet will give the animal an upset stomach.

How much corn does it take to finish a steer? ›

Corn production requirements

Depending on the size and weight of the cattle, the amount of forage available for growing lighter calves, access to low-priced byproducts and other factors, 50 to 80 bushels are typically required to finish one steer.

Can cows eat dry corn? ›

Cattle can eat everything from the corn kernels to the corn stalks. The adaptability of the bovine digestive system helps farmers be more sustainable by using every part of the plant. Corn is an excellent energy source for cattle, too.

Can feeding cows corn causes e coli? ›

E coli O157 was found in 9.0% of the samples from the cattle that ate DG with 15% corn silage; the pathogen was found in 7.3% of samples from the group that ate DG with 5% corn silage. Both of these were significantly higher than the 3.6% prevalence in samples from the cattle that ate only corn and corn silage.

Is steer manure good for corn? ›

Corn and soybeans in particular need nitrogen, phosphorus and potassium. Enter: cow manure. Cow manure from dairy and beef cattle, along with manure from other livestock like pigs, is a natural byproduct that is a sustainable and cost-effective way to provide growing crops with the nutrients they need.

What is the best protein to feed cattle? ›

Microbial crude protein (MCP) —The most important protein source for cattle, supplying from 50% to 100% of the daily MP required by the animal.

What causes cattle to not gain weight? ›

The stocker needs specific amounts of energy, protein and water. Most cattle have genetic potential. If they don't make the expected gain, it's usually because they didn't get enough of one or more of these nutrients from the pasture and water.”

What does adding milk to corn do? ›

Boiling corn on the cob brings out its natural sweetness. But if you want an even juicier and sweeter crisp-tender bite, swap out some of the water for milk. The milk enhances the flavor and texture. It also infuses the corn on the cob with milk and butter, resulting in salty, buttery kernels.

Can you feed cattle too much protein? ›

The answer is yes! Almost everyone has had experience with cows scouring when placed on pasture or if fed a high protein forage. Of more importance, however, is the effect that high dietary protein levels can have on reproduction.

What protein goes well with corn? ›

Top 10 Meat Dishes That Pair Well With Corn On The Cob
  • Pot Ribs. The rich, savory flavors of the ribs complement the sweetness of the corn, and the two dishes also share a similar cooking method. ...
  • Stuffed Pork Tenderloin. ...
  • Grilled Ribeye. ...
  • Sloppy Joes. ...
  • Chicken Nuggets. ...
  • Grilled Chicken. ...
  • Fried Chicken. ...
  • Pork Chops.
13 Nov 2022

What food is irresistible to cows? ›

Candy, wrapper and all: Ranchers report feeding their beef steers and dairy cows a variety of bulk candy, including gummy worms, marshmallows, hard candy, sprinkles, chocolate, candy corn, and hot chocolate mix. Candy provides sugar that cows would usually get from corn, giving them more energy and making them fatter.

What is best to feed a cow before slaughter? ›

For finishing beef cattle prior to slaughter, most are fed a mixture of ground, shelled corn or millet. These grains are inexpensive, nutritious and add fat to the meat to make it tender.

How much beef do you get from a 1000 pound steer? ›

In summary, a steer weighing 1,000 pounds on the hoof will average around 430 pounds of retail cuts (steaks, roasts, ground beef, stew beef, etc.).

Can you overfeed cattle? ›

In dairy cows, overfeeding during the dry period leads to overcondition at calving and to depression of appetite after calving. As a consequence, at calving overconditioned high-producing dairy cows inevitably go into a more severe negative energy balance (NEB) postpartum than cows that have a normal appetite.

Is it better to feed cattle once or twice a day? ›

Target delivery is 1.5% of their body weight as dry matter for the first TMR feeding, working up evenly to 2.5% of body weight in 14-21 days. New cattle should be fed twice a day so you would actually split that 1% – 2.75% over two feedings each day.

How long can cattle go without feed? ›

Cattle can live for many days or a few weeks without food, but will die within a few days without water. Water needs to be fresh, clean and plentiful to ensure maximum intake. Temperature of the water does not seem to affect cattle very much. Research indicates that cattle readily drink water that is 40 - 90° F.

What is a good grain mix for beef cattle? ›

Corn, oats, and barley are the primary grains fed to cattle. Oats, which has a lower energy value due to its high fiber content, is considered the "safest" grain in regards to potential digestive disturbances.

What is the best mineral for beef cattle? ›

Calcium and phosphorus are required in the greatest amounts for cattle. Ninety-nine percent of total body calcium and 80 percent of total body phosphorus are stored in the bones. Skeletal stores of calcium and phosphorus are used to meet short-term deficiencies.

What nutrients does beef lack? ›

Vitamin C is the only essential vitamin not found in useful amounts in cooked animal foods. It is a powerful antioxidant that is important for the maintenance of connective tissue.

Why do cows become sick after eating corn? ›

Eventually, if you give them too much corn too quickly, it ulcerates the rumen; bacteria escape from the rumen into the blood stream, and end up in the liver, creating liver abscesses.

Why are cows not fed corn instead of grass? ›

Cattle are fed grains like corn because they are nutritious, energy-rich, and can be stored for use throughout the year. Because grass does not grow year-round in most of the United States, feeding grains like corn to cattle helps farmers and ranchers raise a consistent, year-round supply of great tasting beef.

What problem has emerged as a result of feeding corn to cattle instead of grass? ›

Since corn was very cheap, the farmers raised cattle on corn also believing that the cows would gain more weight, therefore, more product or supply for them to sell. However, this resulted in the cows begin developing a disease called E. Coli, which then leads to social issues.

Does feeding cows corn cause E coli? ›

E coli O157 was found in 9.0% of the samples from the cattle that ate DG with 15% corn silage; the pathogen was found in 7.3% of samples from the group that ate DG with 5% corn silage. Both of these were significantly higher than the 3.6% prevalence in samples from the cattle that ate only corn and corn silage.

Can you feed cows too much corn? ›

Signs of severe overload in a cow start out as weakness, staggering, or a total reluctance to move. These cows will develop a very foul-smelling watery diarrhea, often with undigested corn in the stool. In severe cases, the cows will become recumbent and not able to get up.

What is better beef grass fed or corn fed? ›

When it comes to nutrition, grass-fed beef is higher in key nutrients, including antioxidants and vitamins. It also has twice as many omega-3 fatty acids as regular beef.

Can grass fed beef eat corn? ›

All beef that comes to the supermarket is grass fed. Beef cannot be fed a strictly corn (or any grain) diet and live without serious health issues that will kill them without medication to keep them alive--not a profitable plan.

Why corn is not appropriate for pasture? ›

Typically, the corn plant loses some leaves, and stalks begin to break down as the seasons progress. This causes a loss in digestible nutrients and protein. However, the remaining stalks, leaves, and grain are still excellent supplemental feed for over-wintering beef cows, stockers, and growing animals.

What makes cattle gain weight? ›

Add Grain into Their Daily Diet

While your cattle likely make their primary diet of hay and grass forage, adding some healthy grains too can increase their weight substantially over time. Grain won't from the basis of your herd's nutrition, but the calorically-dense food can provide a boost to cattle weight.

How does corn fed beef affect humans? ›

Feeding cattle on corn fundamentally changes the meat they produce, greatly increasing levels of unhealthy Omega-6 fatty acids and decreasing levels of healthy Omega-3 fatty acids. This change greatly impacts the healthiness of meat for human consumption.

What happens if you feed a cow too much grain? ›

Grain overload is also known as acidosis or grain poisoning. It occurs when cattle, sheep or goats eat large amounts of grain, and can result in acidosis, slowing of the gut, dehydration and often death. Veterinary treatment is required for severe cases.

Do cows get protein from corn? ›

Corn is relatively low in protein, so providing a 30-40% protein supplement can help meet the cow's protein requirement. Additionally, there must be some forage (0.25-0.5% of body weight on a dry matter basis) included in grain-based diets to promote rumen function and prevent digestive upsets.

Can cows bloat on corn stalks? ›

Thus, it is important to scout fields prior to grazing in order to determine the amount of corn present and to look for piles that could cause grain overload which can result in bloat or death in cattle.

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