How Much Feed Does a Pig Need?
A pig typically consumes 600 to 700 pounds of feed from feeder pig size (about 50 lbs) to market weight (250 lbs). The exact amount depends on the pig's growth phase, genetics, and feed quality (Source: University of Wisconsin Extension).
The general rule of thumb is a 3:1 feed conversion ratio — for every 3 pounds of feed, a pig gains 1 pound of body weight. But this ratio varies by phase: younger pigs convert feed more efficiently than finishing pigs.
Daily Feed Intake by Weight
The minimum daily feed a pig should consume varies by body weight. Never feed less than the amounts below (Source: Penn State Extension):
| Body Weight | Daily Feed (lbs) | Daily Feed (kg) |
|---|---|---|
| 25 – 56 lbs (11 – 25 kg) | 2.1 | 0.95 |
| 56 – 168 lbs (25 – 76 kg) | 3.5 – 5.0 | 1.6 – 2.3 |
| 168 – 224 lbs (76 – 102 kg) | 5.8 | 2.6 |
| 224 – 302 lbs (102 – 137 kg) | 6.5 | 2.9 |
Under normal conditions, market hogs should be allowed to eat as much as they want (ad libitum) until they reach 180–200 lbs. After that point, you may need to limit feed if the pig is gaining too fast or putting on excess fat.
Total Feed to Market Weight
If you're raising a pig from about 50 lbs to market weight, here's how much total feed to expect (Source: UW Extension):
| Target Weight | Total Feed Needed |
|---|---|
| 240 lbs (109 kg) | 570 lbs (259 kg) |
| 250 lbs (113 kg) | 600 lbs (272 kg) |
| 260 lbs (118 kg) | 630 lbs (286 kg) |
| 270 lbs (122 kg) | 660 lbs (299 kg) |
| 280 lbs (127 kg) | 690 lbs (313 kg) |
Pro Tip
Feed conversion gets worse as pigs grow heavier. In the nursery phase (25–100 lbs), FCR is around 2.0–2.5. By the finisher phase (200+ lbs), it rises to 3.0–3.5. This means the last 50 pounds of gain cost significantly more feed than the first 50 pounds.
What Affects How Much Feed a Pig Needs?
- Genetics. High-index commercial lines convert feed more efficiently than heritage breeds.
- Feed quality. Higher protein and energy density means less total feed consumed for the same gain.
- Temperature. Pigs below their thermoneutral zone (60–70°F for finishers) burn extra calories to stay warm, increasing feed needs by 10–15% (Source: WSU Extension).
- Health. Sick pigs eat less and convert feed poorly. PRRS and respiratory disease are the most common causes of increased feed-to-gain ratios.
- Pen density. Overcrowding reduces feeder access and can increase total feed needs by cutting average daily gain.
Sources
- Penn State Extension — Feeding Market Hogs for Show
- University of Wisconsin Extension — Show Pig Nutrition
- Washington State University Extension — Monitoring Your Show Pig's Progress
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