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Guide To Determine What Weight Show Pig To Buy

Filed Under:
Publication Number: P2516
View as PDF: P2516.pdf

Traditionally, the swine show at the Dixie National Junior Roundup is scheduled for a Saturday near February 1 each year. In 2021, the Dixie National Junior Roundup Swine Market Hog Show is scheduled for Saturday, February 6.

Each year, many swine exhibitors purchase the pigs they intend to show at the Dixie National Junior Roundup in Jackson. Some exhibitors purchase pigs at show pig sales, on-farm sales, or from individual producers usually in late September and October. Sometimes they purchase in early November, since the ownership deadline for pigs is December 1. Don’t wait until November to purchase a pig, because there may not be many left.

To be successful showing pigs, plan before purchasing the show pig.

It is a good idea to understand the show requirements.

  • Become familiar with the rules and regulations of the specific show in which you will show the animal.
  • Each show may have different requirements, and the requirements may change from one year to the next.
  • Mississippi Bred Contest: If you want to be eligible for additional premiums provided by the Mississippi Pork Producers Association for Mississippi-bred tagged pigs, ask the seller if the pig will be tagged Mississippi-bred before you purchase the pig. All Mississippi-bred tagged pigs should be tagged before change of ownership.

Here are more things to consider before purchasing the show pig:

  • Animal care—Who will provide daily care for the pig?
  • Housing—Do you have a shelter and pen to keep the pig comfortable?
  • Transport of the pig—Do you have a truck or trailer to haul the pig(s) you purchase?
  • Equipment—Do you have a self-feeder and water supply for the pig?
  • Feed—What will you feed your pig, and will you have the feed when the pig arrives?
  • Health program—Ask the seller what vaccinations or dewormers the pig has received and when the treatments were given.
  • Market situation—What do you plan to do with your pig after the show?
  • Sources of show pigs—Where will you go to purchase a show pig?

How to Use the Tables

The following tables will help you determine what weight pig to purchase at various times. Each table is for a different purchase date (September through November). The purchase date is listed at the top left side. Also, the number of days to the show date (February 6) is listed on the top row after the pig purchase weight. Be sure you use the table that matches your pig purchase date.

Table 1 – Purchase date, September 1

Table 2 – Purchase date, September 15

Table 3 – Purchase date, October 1

Table 4 – Purchase date, October 15

Table 5 – Purchase date, November 1

Table 6 – Purchase date, November 15

The shaded areas in each table represent pig weights that are outside the desirable weight ranges for the Dixie National Junior Roundup. Pigs must weigh 200 pounds or more at the show. There is no maximum weight for the market pigs, but weights above 285 pounds are shaded in the tables. Barrows entered in the MS Bred Barrow Show must weigh between 200 and 290 pounds at the time of show check-in.

There are different ways to use these tables. One way, if you know the weight of the pig you want to buy, is to locate that weight on the top row of the table, then locate the expected average daily gain (ADG) in the column on the left side of the table. The number at the intersection of the row and column is the projected weight of the pig on February 6, 2021.

Example: Table 2. Purchase Date: September 15—You found a pig you want to purchase. The pig weighs 60 pounds, and you think the pig will gain 1.5 pounds per day. The projected weight of the pig on February 6 is 276 pounds.

Another method, if you know what weight you would like your pig to weigh at the show, is to locate that weight in the unshaded area of the table along the same row you think the pig will gain (ADG), then go up the column from the desired show weight to find what weight pig you need to purchase (pig purchase weight).

Example: Table 3. Purchase Date: October 1—You want your pig to weigh about 280 pounds at the show, and you estimate the pig will gain 1.75 pounds per day. From the 284 value located in the 1.75 row, go up the column to the top row (pig purchase weight), and determine a 60-pound pig is what you need to purchase on October 1.

In this same table with the same show weight of about 280 pounds, there are other pigs with a similar weight. For instance, if you purchased a 90-pound pig October 1, you have to make sure the pig gains no more than 1.5 pounds per day to weigh 282 pounds on the show date. And a 120-pound pig purchased October 1 needs to gain only 1.25 pounds per day to weigh 280 pounds on February 6, 2021.

Approximate Show Pig Weight Tables

Table 1. Purchase date: September 1, 2020

Average Daily Gain, lb/day

Pig Purchase Weight, lb (155 days to show)

30

40

50

60

70

80

90

100

110

120

130

140

150

1.00

188

198

208

218

228

238

248

258

268

278

288

298

308

1.25

228

238

248

258

268

278

288

298

308

318

328

338

348

1.50

267

277

287

297

307

317

327

337

347

357

367

377

387

1.75

307

317

327

337

347

357

367

377

387

397

407

417

427

2.00

346

356

366

376

386

396

406

416

426

436

446

456

466

Table 2. Purchase date: September 15, 2020

Average Daily Gain, lb/day

Pig Purchase Weight, lb (141 days to show)

30

40

50

60

70

80

90

100

110

120

130

140

150

1.00

174

184

194

204

214

224

234

244

254

264

274

284

294

1.25

210

220

230

240

250

260

270

280

290

300

310

320

330

1.50

246

256

266

276

286

296

306

316

326

336

346

356

366

1.75

282

292

302

312

322

332

342

352

362

372

382

392

402

2.00

318

328

338

348

358

368

378

388

398

408

418

428

438

Table 3. Purchase date: October 1, 2020

Average Daily Gain, lb/day

Pig Purchase Weight, lb (125 days to show)

30

40

50

60

70

80

90

100

110

120

130

140

150

1.00

158

168

178

188

198

208

218

228

238

248

258

268

278

1.25

190

200

210

220

230

240

250

260

270

280

290

300

310

1.50

222

232

242

252

262

272

282

292

302

312

322

332

342

1.75

254

264

274

284

294

304

314

324

334

344

354

364

374

2.00

286

296

306

316

326

336

346

356

366

376

386

396

406

Table 4. Purchase date: October 15, 2020

Average Daily Gain, lb/day

Pig Purchase Weight, lb (111 days to show)

30

40

50

60

70

80

90

100

110

120

130

140

150

1.00

144

154

164

174

184

194

204

214

224

234

244

254

264

1.25

173

183

193

203

213

223

233

243

253

263

273

283

293

1.50

201

211

221

231

241

251

261

271

281

291

301

311

321

1.75

230

240

250

260

270

280

290

300

310

320

330

340

350

2.00

258

268

278

288

298

308

318

328

338

348

358

368

378

 

Table 5. Purchase date: November 1, 2020

Average Daily Gain, lb/day

Pig Purchase Weight, lb (94 days to show)

30

40

50

60

70

80

90

100

110

120

130

140

150

1.00

127

137

147

157

167

177

187

197

207

217

227

237

247

1.25

151

161

171

181

191

201

211

221

231

241

251

261

271

1.50

176

186

196

206

216

226

236

246

256

266

276

286

296

1.75

200

210

220

230

240

250

260

270

280

290

300

310

320

2.00

224

234

244

254

264

274

284

294

304

314

324

334

344

Table 6. Purchase date: November 15, 2020

Average Daily Gain, lb/day

Pig Purchase Weight, lb (80 days to show)

30

40

50

60

70

80

90

100

110

120

130

140

150

1.00

113

123

133

143

153

163

173

183

193

203

213

223

233

1.25

134

144

154

164

174

184

194

204

214

224

234

244

254

1.50

155

165

175

185

195

205

215

225

235

245

255

265

275

1.75

175

185

195

205

215

225

235

245

255

265

275

285

295

2.00

196

206

216

226

236

246

256

266

276

286

296

306

316

Ownership deadline: December 1

Example: How to calculate a projected pig weight for the show date

Item 1 First, determine how many days it will be from the date of purchase to the show date.If you want to calculate the projected pig weight for a specific date not listed in the above tables, the following example should be helpful.

From October 5 to February 6, there are 124 days (see Table 7).

Item 2 Next, find out the weight of the pig you plan to purchase.

The seller may provide this information, or you can estimate the weight or weigh the pig on a scale.

Example: Starting pig weight is 59 pounds.

Item 3 Next, determine how many pounds of gain per day (ADG) the pig will average until the show.

This will vary depending on the genetic potential of the pig, health status, type and quality of feed, amount of feed provided to the pig each day, housing conditions, weather factors, and so forth. Pigs will grow better if they are not alone. Normally, a pig should gain within a range of 1.4 to 2 pounds per day. Example 1.78 pounds.

Generally, from 60 to 110 pounds, a pig will eat about 5 pounds of feed per day and should gain about 1.5 pounds per day. As the pig approaches 200 pounds, it will eat about 8 pounds of feed per day and should gain about 2 pounds per day.

Item 4 Last, calculate the estimated weight of your pig on the show date.

Multiply Item 1 by Item 3, then add the answer to Item 2; this value is the estimated pig weight on the show date.

Example calculation:

Item 1 = 124 days until show

Item 2 = 59 pounds, initial pig weight

Item 3 = 1.78 average daily gain

Item 4 = 280 pounds of weight on show date

(Item 1 x Item 3) + Item 2 = Item 4.

(124 days x 1.78 lb ADG) + 59-lb pig = 280-lb pig at the show

A show weight calculator to help with the purchase and growth management of your show pig is available in an excel spreadsheet. Go to http://extension.msstate.edu/agriculture/livestock/swine, and scroll down the page to Other Information/Show Weight Calculator (Excel file).

Table 7. Determine the number of days from purchase to show.

Example

Purchase date: October 1, 2020

Show Date: February 6, 2021

Number of days to show: 128

Pig purchase date

Number of days to show

Pig purchase date

Number of days to show

Pig purchase date

Number of days to show

Passed ownership deadline

Number of days to show

Passed ownership deadline

Number of days to show

1-Sep

158

5-Oct

124

8-Nov

90

12-Dec

56

15-Jan

22

2-Sep

157

6-Oct

123

9-Nov

89

13-Dec

55

16-Jan

21

3-Sep

156

7-Oct

122

10-Nov

88

14-Dec

54

17-Jan

20

4-Sep

155

8-Oct

121

11-Nov

87

15-Dec

53

18-Jan

19

5-Sep

154

9-Oct

120

12-Nov

86

16-Dec

52

19-Jan

18

6-Sep

153

10-Oct

119

13-Nov

85

17-Dec

51

20-Jan

17

7-Sep

152

11-Oct

118

14-Nov

84

18-Dec

50

21-Jan

16

8-Sep

151

12-Oct

117

15-Nov

83

19-Dec

49

22-Jan

15

9-Sep

150

13-Oct

116

16-Nov

82

20-Dec

48

23-Jan

14

10-Sep

149

14-Oct

115

17-Nov

81

21-Dec

47

24-Jan

13

11-Sep

148

15-Oct

114

18-Nov

80

22-Dec

46

25-Jan

12

12-Sep

147

16-Oct

113

19-Nov

79

23-Dec

45

26-Jan

11

13-Sep

146

17-Oct

112

20-Nov

78

24-Dec

44

27-Jan

10

14-Sep

145

18-Oct

111

21-Nov

77

25-Dec

43

28-Jan

9

15-Sep

144

19-Oct

110

22-Nov

76

26-Dec

42

29-Jan

8

16-Sep

143

20-Oct

109

23-Nov

75

27-Dec

41

30-Jan

7

17-Sep

142

21-Oct

108

24-Nov

74

28-Dec

40

31-Jan

6

18-Sep

141

22-Oct

107

25-Nov

73

29-Dec

39

   

19-Sep

140

23-Oct

106

26-Nov

72

30-Dec

38

1-Feb

5

20-Sep

139

24-Oct

105

27-Nov

71

31-Dec

37

2-Feb

4

21-Sep

138

25-Oct

104

28-Nov

70

   

3-Feb

3

22-Sep

137

26-Oct

103

29-Nov

69

1-Jan

36

4-Feb

2

23-Sep

136

27-Oct

102

30-Nov

68

2-Jan

35

5-Feb

1

24-Sep

135

28-Oct

101

Ownership Deadline

3-Jan

34

6-Feb

0

25-Sep

134

29-Oct

100

1-Dec

67

4-Jan

33

7-Feb

 

26-Sep

133

30-Oct

99

2-Dec

66

5-Jan

32

8-Feb

 

27-Sep

132

31-Oct

98

3-Dec

65

6-Jan

31

9-Feb

 

28-Sep

131

   

4-Dec

64

7-Jan

30

10-Feb

 

29-Sep

130

1-Nov

97

5-Dec

63

8-Jan

29

11-Feb

 

30-Sep

129

2-Nov

96

6-Dec

62

9-Jan

28

12-Feb

 

 

 

3-Nov

95

7-Dec

61

10-Jan

27

13-Feb

 

1-Oct

128

4-Nov

94

8-Dec

60

11-Jan

26

14-Feb

 

2-Oct

127

5-Nov

93

9-Dec

59

12-Jan

25

15-Feb

 

3-Oct

126

6-Nov

92

10-Dec

58

13-Jan

24

16-Feb

 

4-Oct

125

7-Nov

91

11-Dec

57

14-Jan

23

17-Feb

 

Summary

Careful attention to the pig’s growth rate can identify other management practices that may need attention. If the rate of growth is less than you expect, consider other influences you may need to address, such as health status, animal comfort (housing conditions), and dietary concerns. The information in this publication can help you monitor and adjust the growth of the pig throughout the feeding period before the show. Purchasing a show pig that is the correct weight for the intended show gives you a good beginning to your swine project.


Publication 2516 (POD-10-20)

Revised by Dean Jousan, PhD, Associate Extension Professor, and Mark A. Crenshaw, PhD, Extension Professor (retired), Animal and Dairy Sciences.

The Mississippi State University Extension Service is working to ensure all web content is accessible to all users. If you need assistance accessing any of our content, please email the webteam or call 662-325-2262.

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Authors

Portrait of Dr. Dean Jousan
Associate Extension Professor
Extension 4-H Livestock Specialist