Sustainable Livestock Feed: What to Grow, How to Store It, and How to Cut Feed Costs

Key points

• Feed is about half of total cow and calf production costs in a normal year, and as much as 70 percent in a drought, according to Iowa State University Extension. That is why sustainable livestock feed is the real self-reliance question on a small place.

• Be honest about what you can grow. Ruminants can get close to fully homegrown on good pasture and hay. A laying hen still needs 16 percent protein and about 0.25 pounds of balanced feed a day, and a market hog eats 550 to 750 pounds of feed to go from 40 to 240 pounds.

• Sprouted fodder does not pay. Hydroponic fodder is only 12 to 15 percent dry matter against about 90 percent for grain, so feed that looks like 6 cents a pound wet actually costs about 50 cents per pound of dry matter.

• Wet hay burns barns. Bale small square bales under 22 percent moisture. If a stack reaches 150 degrees F, spontaneous combustion is imminent. At 150 to 160 degrees F, call the fire department and do not open the stack.

• Copper is a hard species line. Goats need 15 to 25 mg per kg of dry matter. Sheep need only 5 to 8. Never feed goat or cattle mineral to sheep.

Feed is the biggest bill on a small homestead and the longest supply chain you depend on. Everything else you can improvise. Feed shows up on a truck.

Sustainable livestock feed is really a question about that dependency. Iowa State University Extension puts feed at roughly half of total cow and calf enterprise costs in a normal year, and says it "may represent as much as 70 percent of all cow-calf costs when extremes such as drought occur." Scale that down to 6 goats and 20 hens and the percentage barely moves.

Most homestead writing about this oversells. You'll read that a half acre and a bucket of sprouted barley makes you self-sufficient. It doesn't, not for every species. Here's the honest version.

What do animals actually need in their feed?

Six things, and you cannot swap one for another by volume. The University of Arkansas Extension lists them as energy, protein, vitamins, minerals, fiber, and water.

Two rules drive every feed decision. First, energy is usually the limiting nutrient and protein is usually the expensive one, so an animal that looks thin is more often short on calories. Second, you buy feed as-is but animals eat dry matter: a pound of fresh forage at 20 percent dry matter delivers a fifth of the nutrition of a pound of hay at 90 percent. That distinction is where most bad homestead feed math goes wrong.

Working numbers worth writing on the barn wall:

• Sheep and goats eat 2 to 4 percent of body weight per day on a dry matter basis, per Arkansas Extension. The Merck Veterinary Manual notes goats can go as high as 6.5 percent.

• Goat protein needs run from a minimum of 7 percent of dry matter at maintenance up to 20 percent in early lactation (Merck). One feed will not cover both.

• Energy feeds (grains) sit at 8 to 11 percent protein. Protein supplements run above 15 percent.

• Calcium to phosphorus ratio should be about 2 to 1 in small ruminants to reduce urinary stone risk.

• Fiber is not filler, it keeps the gut working. Rabbits need 14 to 20 percent crude fiber for maintenance plus free choice hay for gut motility, per the MSD Veterinary Manual.

Water is the nutrient people forget to plan for, and it fails first in an emergency. The gallons per head per day math lives in livestock water requirements, and if the whole place runs off a private well, it is worth knowing how to test that well and keep it from being contaminated after a flood. I will stay on feed here.

How much of your own livestock feed can you realistically grow?

It depends almost entirely on whether the animal has a rumen. Ruminants live on things you can grow with a mower. Monogastrics (pigs, poultry, rabbits to a degree) need concentrated energy and quality protein you mostly buy or grow as grain.

Those ranges are my own planning brackets built from published intake and requirement figures, not a cited study, and the top of each assumes land and a good year.

Two specifics make the point. Alabama Cooperative Extension says a laying hen eats "between 100 and 150 grams of feed per day or roughly 0.25 pounds," needing 16 percent or more crude protein and 3 to 4 percent calcium, and warns against mixing scratch grains into complete feed because "this only dilutes the nutrients your birds need." If you're keeping a laying flock, free range and scraps improve the eggs and trim a little cost, but they do not replace the ration.

And UNH Extension reports an average feed conversion of "3.5 pounds of grain for each pound of gain," with "550 to 750 pounds of feed required to grow a hog from 40 pounds to 240 pounds live weight." Pasture and pumpkins help a gestating sow. They will not finish a market hog.

Why is pasture the cheapest sustainable livestock feed?

Because the animal does the harvesting, the hauling, and the manure spreading for free. Every day an animal grazes is a day you are not buying, moving, and storing hay.

Two levers control the yield: stocking rate and rest period. Overgraze and the plants never rebuild root reserves, so total yearly production drops and you buy more hay. Iowa State notes operations that extend grazing with crop residue and stockpiled forage "can delay delivery of harvested forages until after the first of the year," with corn residue alone supplying roughly 60 days. The paddock sizing and rest period math is its own subject, covered in rotational grazing for small livestock. For feed planning, the takeaway is just this: grazing days are the cheapest feed you will ever have, so the question is how far into winter you can push them.

What can you grow and store as livestock feed?

A short list of crops does most of the work on small acreage.

• Field corn. The energy backbone. High starch, low protein (roughly 8 to 9 percent), stores well as whole shelled grain. It will not balance a ration alone.

• Small grains (oats, barley, wheat, rye). More fiber and slightly more protein than corn, which makes them safer for horses and ruminants. Oats are the most forgiving to feed by hand.

• Sunflowers. High fat and decent protein in the seed. Hang whole heads for hens in winter.

• Mangels and other roots. Very high yield per acre, but mostly water. Good winter succulent feed for ruminants and pigs. Count them as water plus a little energy, never as protein.

• Pumpkins and winter squash. Same story. Cheap bulk that stores for months in a cool dry place, low in dry matter.

• Comfrey. High protein on a dry matter basis, cuts several times a season. Feed it wilted, as a supplement, never as a sole feed.

• Alfalfa and grass hay. The real winter feed. Alfalfa carries the protein, grass hay carries the fiber and is harder to spoil.

Notice the pattern: almost everything easy to grow is high in water and energy and low in protein. Protein is the gap. That's why a homestead growing its own feed usually still buys a protein concentrate, or keeps a dairy animal so skim milk and whey can fill the hole for pigs and poultry.

How do you judge hay quality, and why does wet hay start barn fires?

Judge hay by opening a bale, not by looking at the outside. Four things matter: maturity at cutting, leaf to stem ratio, color, and smell.

University of Missouri Extension ties quality first to maturity at cutting: alfalfa at bud to 1/10 bloom, red clover at 1/4 to 1/2 bloom, timothy at late boot, bromegrass at heads emerged. Cut later and you get more tonnage of worse feed. Leaves hold most of the protein, so a bale of coarse stems is mostly filler. Green color means it cured without rain or sun bleaching. Any hay that smells musty, dusty, or sweet and caramelized has heated, and the feed value is already gone.

Moisture at baling is the number that decides everything. Missouri Extension puts safe baling at "less than 22 percent moisture" for small rectangular bales and "less than 18 percent moisture" for large round bales. Alabama Extension is stricter on fire risk specifically: "maintaining forage moisture levels at 15 percent or less at baling will lead to minimal fire risk."

Wet hay does not smolder because of sunlight. Microbes in damp hay respire and generate heat, and if the stack cannot shed it the temperature climbs. Missouri Extension notes heat-tolerant fungi stay active from 113 to 150 degrees F, and that hay can reach its ignition point of 448 to 527 degrees F over a window of four to 10 weeks after baling. Alabama Extension's thresholds are worth taping inside the barn door:

• Around 120 degrees F in the first few days: normal for properly cured hay.

• 140 degrees F: high risk. Consider tearing the stack down and keep monitoring.

• 150 degrees F: "the temperature will not decrease, and spontaneous combustion is imminent."

• 150 to 160 degrees F and above: "Dangerous. Call fire department. Do not open the stack until they arrive."

That last line matters. Pulling apart a hot stack floods it with oxygen and can ignite it in your face. Check with a probe thermometer on a rod rather than climbing on the stack, because heating hay leaves voids you can fall into.

Storage losses are real too. Missouri Extension says hay stored indoors at 20 to 22 percent moisture "should not lose more than 5 percent of its original dry matter during the first year," while outdoor storage runs 6 to 15 percent with "the norm much closer to 15 percent." Iowa State reports storage and feeding losses combined "often exceed 30 percent in many herds." A hay shed pays for itself faster than people expect.

Does sprouted fodder actually save money?

No, and the reason is arithmetic. This is the most oversold idea in homestead feeding.

The pitch is that a pound of barley becomes 6 to 10 pounds of green fodder in a week. That part is true. The problem is what the extra weight is made of. According to the Maryland Small Ruminant Page, "the dry matter content of hydroponic fodder is only 12 to 15 percent, compared to almost 90 percent in (unsprouted) grains and hays," and "the increase (in weight) is almost all water."

Run the cost the way an animal experiences it. Fodder at 6 cents a pound wet, at 12 percent dry matter, "actually costs 50 cents per pound of dry matter," which is "considerably more expensive than most other feedstuffs." Sprouting also burns some of the seed's starch, so you finish with less total dry matter than you started with. The research summary is blunt: "there has been no consistent advantage to including green fodder in the diet of livestock."

Sprouts do help as a small green supplement in deep winter, or as a treat that gets picky animals eating. As a feed program, it's a way to work harder for less feed.

What food scraps are safe to feed, and what is illegal?

Start with the law, because feeding food waste to pigs is federally regulated and most people have no idea.

Under the Swine Health Protection Act, 9 CFR Part 166 defines garbage as "all waste material derived in whole or in part from the meat of any animal (including fish and poultry) or other animal material," plus refuse that touched it. Feeding that to swine requires a licensed treatment facility, and the garbage must be "heated throughout at boiling (212 degrees F or 100 degrees C at sea level) for 30 (thirty) minutes."

One exemption covers most homesteads: the definition excludes "waste from ordinary household operations which is fed directly to swine on the same premises where such household is located." Your own kitchen scraps to your own pigs on your own place is legal. Collect scraps from a restaurant, a school, or a neighbor and you are in licensed territory. The rule exists because foot and mouth disease and African swine fever move in uncooked meat scraps. States can be stricter, so check yours.

Then there's mold. SDSU Extension notes mold "can reduce the digestibility of the diet by up to 5 percent in ruminants," with spore counts under 1 million CFU per gram relatively safe, 1 to 2 million calling for an energy discount, and above 5 million discontinued. Breeding animals, dairy cows, pigs, and poultry are more sensitive to mycotoxins than feedlot calves.

The FDA action levels for aflatoxins in animal food put hard numbers on it:

• 20 ppb for all animal food generally, and for immature animals and dairy animals

• 100 ppb in corn and peanut products for breeding beef cattle, breeding swine, and mature poultry

• 200 ppb for finishing swine over 100 pounds

• 300 ppb for finishing beef cattle

You cannot see or smell those levels. The practical homestead rule is simpler: if feed is visibly moldy, caked, or smells wrong, it goes on the compost pile, not in a trough, and that goes double for pregnant animals and horses.

Specific plants matter too. University of Maryland Extension reports that wilted wild cherry leaves release cyanide, and that "0.46 to 1.82 grams of plant material per pound of body weight" can be fatal to ruminants. That is as little as 1.2 pounds of wilted leaves for a 1,200 pound cow, or 0.18 pounds for a 180 pound sheep, with signs starting "as soon as 15 to 20 minutes" after eating. A cherry limb down in a summer storm is an emergency, not yard work for Saturday.

University of Minnesota Extension adds the ones that survive haymaking: poison hemlock, water hemlock ("a piece the size of a walnut can kill a cow"), white snakeroot, and brackenfern all stay toxic dried in hay. It also flags that nitrate accumulators like pigweed, lambsquarters, corn, and sorghum-sudangrass get dangerous under drought stress and high nitrogen. And it names the pattern: "most poisonings occur in the early spring or during a drought when feed is short," which is exactly when a self-reliant operation is most tempted to feed something questionable.

Why is copper fine for goats and lethal for sheep?

Because sheep store copper in the liver and cannot excrete the excess. Merck gives the gap plainly: goats need 15 to 25 mg of copper per kg of dry matter, "much greater than that for sheep (5 to 8 mg/kg dry matter)."

Cornell Cooperative Extension explains the mechanism: copper accumulates in liver and kidneys over months, then a stress event like shearing, transport, or handling dumps it into the bloodstream all at once. The animal looked fine yesterday and is dead today. Sheep need roughly 4 to 6 ppm to avoid deficiency, and 8 to 11 ppm is a normal feeding level. Minerals for other species carry copper "that are often too high for sheep." The practical rules:

• Buy mineral labeled for the species you're feeding. If sheep and goats run together, feed the sheep mineral to both and supplement the goats separately under veterinary guidance.

• Never let sheep get into goat, cattle, horse, or dog feed. Store them physically apart.

• Offer loose mineral free choice rather than a block. Small ruminants cannot work a hard block effectively.

• Watch water quality. Merck flags soluble sulfates above 500 mg per liter as a problem for goats.

How do you store feed so it actually lasts?

Feed has no indefinite shelf life, and the moment you grind or roll it the clock speeds up.

University of Illinois Extension gives real storage life figures:

• Whole oats and barley: at least 1 year if kept at consistent moisture and humidity.

• Dry rolled barley: close to 6 months if rolled in fall or winter, but only about 3 months if rolled in summer.

• Rolled high fat oats: 3 to 4 months rolled in fall, and as little as 3 weeks rolled in summer before going rancid.

• Heat treated pellets: 3 to 6 months.

• Complete feeds with vitamin and mineral premix: vitamin potency drops after about 3 months.

• Grain above 15 percent moisture: use within a few days.

Whole grain is the storage form. Grind only what you'll feed in a few weeks. Vitamins fade first, so a bag of complete feed found in the back of the barn from last spring is calories, not nutrition. Four things to defend against, in order of cost:

1. Rodents. Metal, not plastic. Galvanized cans with tight lids or steel drums. A rat chews a plastic tote in a night, and rodent urine spoils far more feed than it eats.

2. Moisture. Store on pallets, never straight on concrete, which wicks. Keep grain below 15 percent moisture.

3. Heat and light. Both degrade vitamins and turn fats rancid. A cool, dark, ventilated feed room beats a sunny lean-to.

4. Insects. Weevils and meal moths move in fast. Rotate first in, first out, and clean the bottom of the bin between loads instead of topping it up.

How do you build a 30 to 90 day livestock feed reserve?

Do it with arithmetic, not vibes. Four steps.

1. Write down daily dry matter intake per animal. Use 2 to 4 percent of body weight for sheep and goats, 0.25 pounds per day for a laying hen, and about 3.5 pounds of feed per pound of expected gain for growing pigs.

2. Multiply by head count, then by days. Six 120 pound goats at 3 percent is about 21.6 pounds of dry matter a day, or roughly 650 pounds for 30 days and 1,950 pounds for 90 days. That's about 40 to 50 small square bales for the quarter.

3. Add 20 to 30 percent for waste. Iowa State notes storage and feeding losses often exceed 30 percent. Feeders that reduce trampling and sorting are the cheapest way to shrink that number.

4. Match the reserve to the shelf life. Store whole grain and good hay, not ground complete feed, because you can hold whole grain a year and rolled feed 3 months. Rotate with the seasons instead of buying a wall of feed that expires together.

One thing most reserve plans miss: stock mineral and salt to the same depth as the feed. Animals coast on mediocre calories for a while. A pregnant ewe short on selenium or a goat short on copper is a different problem, and it shows up in the lambs and kids, not the mother.

When should you call a veterinarian or extension agent?

Feed problems become medical problems fast, and some are same-day emergencies. Call your veterinarian right away if you see:

• Sudden death or several animals down at once. That pattern points at a toxin, a nitrate or cyanide event, or a feed mix-up, and it is an emergency for the whole herd.

• Staggering, tremors, labored breathing, or bright red gums after animals had access to wilted cherry, drought-stressed forage, or new pasture. Cyanide and nitrate poisoning can kill within hours.

• Bloat, a distended left flank, or an animal straining and grinding its teeth after a grain overload or a break-in at the feed room. Grain overload is a veterinary emergency.

• Any sheep showing weakness, yellow gums, or dark red urine after a change in mineral or feed. That is the classic copper toxicity picture.

• Abortions, weak newborns, or a herd-wide production drop after a feed change, which can point at mycotoxins.

Call your county extension agent, not the vet, when the question is nutritional rather than clinical: hay testing for protein, energy, and nitrate, building a ration from what you actually grow, soil testing for the minerals your forage is missing, or checking your state's food waste rules. Most land grant universities run a forage testing lab, and a hay test costs less than one bag of feed. Search your state's name plus "cooperative extension forage testing."

One safety note that is not about animals: if a person swallows a mineral supplement, a medicated feed additive, or a rodenticide from the feed room, call Poison Control at 1-800-222-1222 immediately, and call 911 if they are unconscious or struggling to breathe. Medicated feeds and rodent baits belong in a locked cabinet, not on a shelf in the barn.

Frequently asked questions

Can you feed livestock entirely from your own land?

Ruminants, usually yes, if you have the acreage. Goats, sheep, and cattle can live on pasture and hay you grow, with purchased mineral. Pigs and poultry, realistically no. A laying hen needs 16 percent or more crude protein and 3 to 4 percent calcium, and a market hog eats 550 to 750 pounds of feed from 40 to 240 pounds. You can cut those bills substantially with garden surplus, dairy byproducts, and grain, but expect to buy a protein source.

How can I tell if hay is good quality without a lab test?

Open a bale and use your hands and nose. Look for a high proportion of leaves to coarse stems, since leaves hold the protein, and green color rather than brown or bleached. Smell for mustiness, dust, or a sweet caramelized smell, all of which mean it heated. Check for weeds and foreign material. A lab forage test is still the only way to get real protein and energy numbers.

Is sprouted fodder worth the effort for livestock?

Usually not on cost. Hydroponic fodder is only 12 to 15 percent dry matter versus about 90 percent in grain, so the impressive weight gain is mostly water. Feed that appears to cost 6 cents a pound wet works out to roughly 50 cents per pound of dry matter, and research has not shown a consistent advantage from adding green fodder to livestock diets. It's a nice winter green supplement, not a feed program.

Is it legal to feed kitchen scraps to pigs?

Your own household scraps fed to your own pigs on your own property are exempt from federal licensing under 9 CFR Part 166. Collecting food waste containing meat from anywhere else, including restaurants or neighbors, requires a licensed facility and heating the material at boiling for 30 minutes. States can impose stricter rules, so check with your state department of agriculture before you haul anything home.

Why can't sheep eat goat mineral?

Copper. Goats need 15 to 25 mg of copper per kg of dry matter, while sheep need only 5 to 8. Sheep store excess copper in the liver with no way to shed it, and a stress event like shearing or transport can release it all at once and kill the animal. Always buy mineral labeled for sheep, and store other species' feed where sheep cannot reach it.

Cutting the feed bill is not one big move. It's grazing 30 more days in the fall, keeping hay under a roof, storing grain whole in metal, and refusing to pay 50 cents a pound of dry matter for water. Do those four and the truck matters less every year.

You never know, but you can always be ready.

Sources: Iowa State University Extension, Ten Ways to Reduce Feed Costs in Cow-Calf Operations; University of Arkansas Extension, Basic Nutrition of Small Ruminants; Merck Veterinary Manual, Nutritional Requirements of Goats; MSD Veterinary Manual, Nutrition of Rabbits; Alabama Cooperative Extension, Feeding the Laying Hen; University of New Hampshire Extension, Swine Nutrition; University of Missouri Extension, Making and Storing Quality Hay; Alabama Cooperative Extension, Reducing the Risk of Hay Fire; Maryland Small Ruminant Page, Hydroponic Fodder; eCFR, 9 CFR Part 166, Swine Health Protection; SDSU Extension, Can Livestock Utilize Moldy Grain?; FDA, Action Levels for Aflatoxins in Animal Food; University of Maryland Extension, Managing the Risk of Cyanide Poisoning from Wilted Cherry Leaves; University of Minnesota Extension, Plants Poisonous to Livestock; Cornell Cooperative Extension, Tips for Avoiding Copper Toxicity in Sheep; University of Illinois Extension, Storage Life of Livestock Feeds