Feeding Pig (Sow/Boar) with Whole Corn
This page analyzes the use of whole corn as a feed source for pig (sow/boar). At 9% crude protein and 88% TDN, whole corn is meets energy but not protein as a sole feed for pig (sow/boar) at maintenance level (requires 14% CP and 75% TDN). Below you will find daily feeding rates, costs across herd sizes, and a life-stage breakdown showing how requirements change through the production cycle.
Whole Corn for Pig (Sow/Boar) by Life Stage
Feed requirements change significantly across life stages. The table below shows the daily as-fed quantity of whole corn needed for each pig (sow/boar) life stage, along with whether the feed meets the adjusted protein and TDN requirements for that stage. Life stages with higher demands (lactation, growth) may require supplementation even if whole corn is adequate at maintenance.
| Life Stage | Daily DMI | As-Fed/Day | Protein Need | Protein OK? | Monthly Cost |
|---|---|---|---|---|---|
| Gestating Sow | 8.4 lbs | 9.6 lbs | 14% | No | $31.50 |
| Lactating Sow | 18.0 lbs | 20.4 lbs | 18.2% | No | $67.50 |
| Gilt Development | 13.2 lbs | 15.0 lbs | 16.1% | No | $49.50 |
Herd Feed Budget: Pig (Sow/Boar) on Whole Corn
For operations feeding whole corn to multiple pig (sow/boar) animals, the table below projects total feed requirements and costs. These estimates use the maintenance-level feeding rate of 13.6 lbs as-fed per head per day at $220/ton.
| Head Count | Daily As-Fed Total | Monthly Tons | Annual Tons | Monthly Cost | Annual Cost |
|---|---|---|---|---|---|
| 1 | 13.6 lbs | 0.18 tons | 2.19 tons | $45.00 | $547.50 |
| 5 | 68.2 lbs | 0.90 tons | 10.95 tons | $225.00 | $2,737.50 |
| 10 | 136.4 lbs | 1.80 tons | 21.90 tons | $450.00 | $5,475.00 |
| 25 | 341.0 lbs | 4.50 tons | 54.75 tons | $1,125.00 | $13,687.50 |
| 50 | 682.0 lbs | 9.00 tons | 109.50 tons | $2,250.00 | $27,375.00 |
| 100 | 1,364.0 lbs | 18.00 tons | 219.00 tons | $4,500.00 | $54,750.00 |
Feeding Rates by Body Weight
The daily amount of whole corn varies with the individual animal's body weight. The table below shows as-fed feeding rates and monthly costs across a range of weights for pig (sow/boar).
| Body Weight | Daily DMI | As-Fed/Day | Monthly Feed | Monthly Cost |
|---|---|---|---|---|
| 280 lbs | 8.4 lbs | 9.6 lbs | 252 lbs | $31.50 |
| 340 lbs | 10.2 lbs | 11.6 lbs | 306 lbs | $38.25 |
| 400 lbs | 12.0 lbs | 13.6 lbs | 360 lbs | $45.00 |
| 460 lbs | 13.8 lbs | 15.7 lbs | 414 lbs | $51.75 |
| 520 lbs | 15.6 lbs | 17.7 lbs | 468 lbs | $58.50 |
Nutritional Analysis: Whole Corn for Pig (Sow/Boar)
Whole Corn provides 9% crude protein on a dry matter basis, while pig (sow/boar) at maintenance require a minimum of 14% crude protein. This means whole corn falls short of the minimum protein requirement by 5 percentage points. A protein supplement such as soybean meal, cottonseed meal, or a commercial protein block would be needed to balance the ration.
For energy, whole corn provides 88% TDN compared to the pig (sow/boar) requirement of 75% TDN. The energy content is adequate for maintenance and provides 13 percentage points of margin. Higher-demand life stages such as lactation or rapid growth may require energy supplementation with grain or fat even though the maintenance requirement is met.
The dry matter content of whole corn is 88%, meaning that for every 100 lbs of as-fed feed, the animal receives 88 lbs of actual dry matter nutrition and 12 lbs of water. At $220 per ton as-fed, the effective cost per ton of dry matter is $250. When comparing feeds, always use the dry matter cost rather than the as-fed cost to make fair comparisons between feeds with different moisture levels.
For a comprehensive feeding program, consider combining whole corn with complementary feeds that address any nutritional gaps. Browse the complete feed comparison to identify the most cost-effective supplements, or use the calculator to model different feed combinations. Always provide free-choice mineral supplementation and clean water regardless of the forage and grain program.
More Feeding Combinations
Explore other feed options for pig (sow/boar) or see how whole corn works for other species.
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