Beef Cow — Feed Requirements Guide
Beef cattle are the foundation of the American cattle industry, raised primarily for meat production. Feed requirements vary significantly based on life stage, with lactating cows and growing calves demanding the highest nutritional density. A mature beef cow typically consumes 2.0% of body weight in dry matter daily, translating to approximately 24 lbs of dry matter per day for a 1,200-lb cow. Beef cattle are efficient converters of forage into protein, thriving on grass hay, pasture, and moderate grain supplementation. Understanding the nutritional needs of each production phase is essential for maintaining herd health, reproductive performance, and profitability.
Beef Cow Nutritional Requirements by Life Stage
The table below shows how dry matter intake, protein requirements, and feed costs change across the 6 life stages of beef cow production. Life stage adjustments account for the dramatically different energy and protein demands of lactation, growth, gestation, and maintenance. Click any life stage for a dedicated page with detailed feeding recommendations and management tips.
| Life Stage | DMI Adj. | Daily DMI | Protein % | Daily Protein | Monthly Cost* |
|---|---|---|---|---|---|
| Dry Cow | 0.85x | 20.4 lbs | 7% | 1.4 lbs | $52.16 |
| Lactating Cow | 1.25x | 30.0 lbs | 10.5% | 3.2 lbs | $76.70 |
| Bred Heifer | 1.1x | 26.4 lbs | 9.1% | 2.4 lbs | $67.50 |
| Growing Calf | 1.3x | 31.2 lbs | 11.9% | 3.7 lbs | $79.77 |
| Finishing Steer | 1.15x | 27.6 lbs | 9.8% | 2.7 lbs | $70.57 |
| Breeding Bull | 1x | 24.0 lbs | 8.4% | 2.0 lbs | $61.36 |
*Monthly cost estimated using grass hay at $150/ton. Actual costs vary by feed type and region.
Recommended Feeds for Beef Cow
The following feeds meet both the minimum crude protein and TDN requirements for beef cow at maintenance level (7% protein, 52% TDN) when fed as the sole feed source. In practice, most feeding programs combine multiple feed ingredients to optimize cost and nutritional balance.
| Feed | Protein | TDN | As-Fed/Day | Cost/Ton |
|---|---|---|---|---|
| Grass Hay | 8% | 52% | 27.3 lbs | $150 |
| Alfalfa Hay | 18% | 58% | 26.7 lbs | $250 |
| Timothy Hay | 9% | 55% | 27.3 lbs | $200 |
| Bermuda Grass Hay | 10% | 52% | 27.3 lbs | $160 |
| Corn Silage | 8% | 70% | 68.6 lbs | $50 |
| Haylage (Baleage) | 14% | 60% | 53.3 lbs | $80 |
| Whole Corn | 9% | 88% | 27.3 lbs | $220 |
| Cracked Corn | 9% | 88% | 27.3 lbs | $240 |
| Oats | 12% | 70% | 27.0 lbs | $210 |
| Barley | 13% | 84% | 27.3 lbs | $230 |
| Soybean Meal | 44% | 84% | 26.7 lbs | $450 |
| Cottonseed Meal | 41% | 75% | 26.4 lbs | $380 |
| Distillers Grains (Dried) | 27% | 86% | 26.7 lbs | $200 |
| Beet Pulp | 9% | 74% | 26.4 lbs | $280 |
| Wheat Bran | 16% | 67% | 27.0 lbs | $180 |
| Rice Bran | 13% | 65% | 26.4 lbs | $200 |
| Pasture Grass (Fresh) | 12% | 62% | 96.0 lbs | $0 |
| Corn Gluten Feed | 21% | 80% | 27.3 lbs | $200 |
| Canola Meal | 36% | 74% | 26.7 lbs | $350 |
| Layer Pellets | 16% | 70% | 26.7 lbs | $400 |
| Broiler Starter | 22% | 78% | 26.7 lbs | $450 |
| Horse Sweet Feed | 12% | 72% | 27.3 lbs | $350 |
| Brewers Grains (Wet) | 26% | 66% | 100.0 lbs | $60 |
| Alfalfa Hay Cubes | 17% | 56% | 26.7 lbs | $300 |
Feeds Requiring Supplementation
These feeds meet either the protein or TDN requirement but not both, and would need to be combined with other feeds in a balanced ration. The table indicates which nutritional requirement is met and which needs supplementation.
| Feed | Protein | TDN | Protein OK? | TDN OK? |
|---|---|---|---|---|
| Molasses | 5% | 72% | No | Yes |
| Fat Supplement (Bypass Fat) | 0% | 180% | No | Yes |
| Urea (Feed Grade) | 281% | 0% | Yes | No |
Feeding Beef Cow at Different Body Weights
Body weight directly determines dry matter intake. The table below shows how daily feed requirements change across a range of body weights for beef cow at maintenance level. Use the calculator for custom weights, life stages, and herd sizes.
| Body Weight | Daily DMI | Daily Protein | Monthly Feed | Annual Feed |
|---|---|---|---|---|
| 720 lbs | 14.4 lbs | 1.0 lbs | 432 lbs | 2.63 tons |
| 960 lbs | 19.2 lbs | 1.3 lbs | 576 lbs | 3.50 tons |
| 1,200 lbs | 24.0 lbs | 1.7 lbs | 720 lbs | 4.38 tons |
| 1,440 lbs | 28.8 lbs | 2.0 lbs | 864 lbs | 5.26 tons |
| 1,800 lbs | 36.0 lbs | 2.5 lbs | 1,080 lbs | 6.57 tons |
Herd Size Feed Budgets for Beef Cow
Planning feed purchases and storage requires estimating total feed needs for your herd over time. The table below shows monthly and annual feed requirements and costs for various herd sizes of beef cow at maintenance level using grass hay at $150/ton.
| Head Count | Daily DMI Total | Monthly Feed | Annual Feed | Annual Cost |
|---|---|---|---|---|
| 5 | 120.0 lbs | 1.80 tons | 21.90 tons | $3,732.95 |
| 10 | 240.0 lbs | 3.60 tons | 43.80 tons | $7,465.91 |
| 25 | 600.0 lbs | 9.00 tons | 109.50 tons | $18,664.77 |
| 50 | 1,200.0 lbs | 18.00 tons | 219.00 tons | $37,329.55 |
| 100 | 2,400.0 lbs | 36.00 tons | 438.00 tons | $74,659.09 |
| 200 | 4,800.0 lbs | 72.00 tons | 876.00 tons | $149,318.18 |
Other Animals
Browse feed requirement guides for other livestock species.