22% or 16% Chicken Feed in the Winter | What Your Flock Needs

A 50-pound bag of 16% layer feed costs less at the counter, but choosing between 22% or 16% chicken feed in the winter usually means picking the wrong two options. Most backyard flocks need 18–20% protein once the temperature drops below freezing. Research from extension services and experienced keepers consistently points to that middle range for cold-weather laying hens, with 16% acting as a bare minimum and 22% reserved for meat birds or extreme molting periods.

Here is what changes in winter and how to adjust your flock’s protein without guesswork.

Why Is 16% Protein Not Enough in Winter?

Chickens burn more calories just staying warm when the mercury drops. Protein is the most thermogenic macronutrient — digesting it generates body heat — and laying hens also need extra amino acids to keep producing eggs during shorter days. A 16% layer feed covers baseline maintenance for a hen in a climate-controlled commercial barn, but backyard flocks facing wind, snow, and roosting in unheated coops need more.

The IFA cooperative’s winter feeding guide notes that 16% protein leaves no “wiggle room” for cold stress, molting, or feather regrowth. Hens on 16% feed in winter often drop egg production faster, grow thin, and take longer to recover after a hard freeze. The Auburn University Extension recommendation for backyard flocks in cold climates calls for 18–20% crude protein during winter months. IFA’s winter chicken feeding guide spells out the protein shift needed once temperatures fall.

When Does 22% Protein Make Sense?

A 22% protein feed is formulated for meat birds — broilers and Cornish crosses — that need rapid muscle growth. For standard laying hens, 22% is unnecessary and can lead to overconsumption of feed if not carefully managed, since chickens tend to eat to meet their protein needs rather than their calorie needs. Overfeeding protein strains the kidneys and can increase water intake, leading to wet bedding and frostbite risks in winter.

The exception is a hen going through a hard molt during extreme cold. During molt, feather regrowth demands massive protein — up to 22% can help a molting hen get through faster. Some keepers also bump protein to 22% during multi-day polar vortex events, then drop back to 18–20% once the worst passes.

The Sweet Spot: 18–20% Protein for Winter Layers

Most backyard flock experts land on 18–20% crude protein as the optimal winter range for laying hens. This level supports egg production, body heat generation, and feather condition without the waste or health risks of overfeeding protein. Scratch and Peck’s high-protein layer feed clocks in at 20%, and Purina’s Flock Hold formula provides 18% — both designed for cold-weather flocks.

Birds that range on pasture in warmer months can get away with 16% because they pick up insects and greens that boost protein naturally. When snow covers the ground or the run turns to mud, those natural sources disappear, and the feed has to carry the full load. That is why the bag percentage matters more in January than it does in July.

The Oregon State University Extension recommends adjusting layer feed seasonally and warns that dropping below 17% crude protein during cold weather will likely reduce egg output in heavier breeds and stop it entirely in lighter breeds like Leghorns, which need about 17 grams of protein per day.

Protein Levels by Bird Type and Season

If you are shopping for feed this season and want a curated list of the best options for cold weather, check out our roundup of the best chicken feed formulations for winter that takes the guesswork out of bag labels.

How to Transition Chickens to Higher Protein Feed

Switching feed abruptly can upset a chicken’s digestive system and cause loose droppings or reduced eating. Scratch and Peck’s transition protocol recommends a 7-to-10 day ramp:

• Days 1–3: Mix 25% new feed with 75% old feed.
• Days 4–6: Shift to a 50/50 blend.
• Days 7–9: Move to 75% new feed, 25% old.
• Day 10: Feed 100% new formula.

Your flock should maintain normal droppings (firm with white urate caps), active foraging behavior, and consistent egg size through the transition. If you see runny droppings or birds avoiding the feeder, hold at the current ratio for two extra days before increasing.

Keep feeders dry and insulated. Wet feed freezes into blocks chickens cannot eat, and thawed wet feed ferments into alcohol that is toxic to the flock. Check feeders twice daily during sub-zero temperatures.

Supplements That Boost Protein Without Changing Feed

If your current 16% bag is half-full and you want to avoid waste, you can boost protein with targeted supplements instead of dumping the whole bag:

• Dried mealworms: Roughly 50% protein. Sprinkle a handful per 10 birds daily. A 2-pound bag runs about $15–$25.
• Brewer’s yeast: About 40% protein plus B vitamins. Mix 1 tablespoon per 5 pounds of feed. A 1-pound bag costs $10–$18.
• Black oil sunflower seeds: Around 14% protein and high in fat for warmth. Limit to 1 tablespoon per bird per day to keep the diet balanced.
• Eggs (cooked, crushed shell included): Whole cooked eggs return protein and calcium to the flock. One egg per 5 birds, once a week, crushed shell and all.

The Silver Fox Farm guide emphasizes keeping all treats and supplements under 10% of the total diet to avoid nutrient dilution. Too many mealworms and not enough layer feed means your hens fill up on treats and miss the balanced calcium and vitamins in the formulated feed.

Supplement Cost and Use Comparison

Common Winter Feeding Mistakes

Three errors show up repeatedly in backyard flocks when the temperature drops:

• Treating 16% as sufficient. It is the minimum for a hen doing nothing but existing. If she is laying, molting, or fighting cold, 16% falls short.
• Daily scratch grains. Scratch is mostly carbohydrate with low protein. A handful on the coldest night helps generate body heat before roosting, but daily scratch displaces balanced feed and dilutes protein intake.
• Dropping protein after molt. As days lengthen in late winter, egg production ramps up. Keeping protein at 18–20% through the spring transition supports the heavier laying cycle.