Merck Manual

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Recommended Target Body Weights (kg) for Heifers of Different Ages

Recommended Target Body Weights (kg) for Heifers of Different Ages

Heifer Age (mo)

% of Mature Body Weight

Small Breeds

Medium Breeds

Large Breeds

Birth

6.2

28

34

47

1

9.1

41

50

68

2

12.3

55

68

92

3

16.2

73

89

122

4

20.0

90

110

150

5

23.7

107

130

178

6

27.5

124

151

206

7

31.2

140

172

234

8

35.0

158

193

263

9

38.9

175

214

291

10

42.5

191

234

319

11

46.3

208

255

347

12

49.9

224

274

374

13

53.7

242

295

403

14

57.4

258

316

430

15

61.1

275

336

458

16

64.7

291

356

485

17

68.5

308

377

513

18

72.2

325

397

541

19

76.0

342

418

570

20

79.6

358

438

597

21

83.3

375

458

625

22

87.1

392

479

653

23

90.8

409

499

681