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Table 1 Pigs

From: Osteochondrosis and other lesions in all intervertebral, articular process and rib joints from occiput to sacrum in pigs with poor back conformation, and relationship to juvenile kyphosis

Pig Conformation Score Weight Breed Cervical vertebrae Thoracic vertebrae Lumbar vertebrae Sacral vertebrae Sum Anticlinal vertebra Rib joints merge at Transitional vertebrae Rib
1 Dipped back Severe 100 kg Landrace 7 15 6 4 32 10 11
2* Dipped back Severe 100 kg Landrace 7 16 6 4 33 13 11 T16 Both sides
3 Dipped back Severe 100 kg Landrace 7 17 6 4 34 14 11
4 Dipped back Severe 100 kg Landrace 7 16 5 4 32 12 12 T16 Left only
5 Dipped back Severe 100 kg Landrace 7 16 6 4 33 11 11
6* Dipped back Severe 100 kg Landrace 7 16 6 4 33 12 12 T16 Both sides
7* Dipped back Severe 100 kg Landrace 7 17 6 4 34 13 11
8 Dipped back Severe 100 kg Duroc 7 15a 6 4 31 11 12
9 Dipped back Severe 100 kg Landrace 7 15 6 4 32 13 13
10* Dipped back Severe 100 kg Landrace 7 16 6 4 33 13 15
11 Dipped back Severe 100 kg Landrace 7 16 6 4 33 14 11
12* Dipped back Severe 100 kg Landrace 7 15 6 4 32 12 11
13 Dipped back Severe 120 kg Landrace 7 16 6 4 33 12 12
14 Dipped back Severe 120 kg Duroc 7 15 5 4 31 12 11 T15 Both sides
15* Dipped back Severe 120 kg Landrace 7 16 6 4 33 13 12
16* Dipped back Severe 120 kg Landrace 7 17 6 4 34 13 11 T17 Left only
17 Dipped back Severe 120 kg Duroc 7 15 6 4 32 11 11
18* Humpback
Dipped back
Severe
Severe
120 kg Landrace 7 16 6 4 33 12 11
19 Humpback Moderate 120 kg Landrace 7 16 6 4 33 12 12
20 Humpback Moderate 120 kg Landrace 7 15 6 4 32 11 11
21 Humpback Moderate 120 kg Duroc 7 15 6 4 32 13b 12
22* Humpback Moderate 120 kg Landrace 7 17 5 4 33 13 12 T17 Both sides, but left > right
23* Humpback Moderate 120 kg Duroc 7 16 6 4 33 11 11
24 Humpback Moderate 120 kg Duroc 7 16 6 4 33 11 11
25* Humpback Moderate 120 kg Duroc 7 16 6 4 33 12 12
26* Humpback Moderate 120 kg Landrace 7 15 6 4 32 13 11
27* Humpback Moderate 120 kg Landrace 7 16 6 4 33 13 12
28* Humpback Moderate 120 kg Duroc 7 15 6 4 32 11 11
29* Humpback Moderate 120 kg Landrace 7 16 6 4 33 13 12 T16 Both sides, but right > left
30* Humpback Moderate 120 kg Landrace 7 16 6 4 33 12 12
31 Humpback Moderate 120 kg Duroc 7 15 6 4 32 12 11
32 Humpback Moderate 120 kg Duroc 7 15 6 4 32 12 11
33a Humpback Moderate 120 kg Duroc 7 14 6 4 31 12 12
34 Humpback Moderate 120 kg Landrace 7 16 6 4 33 13 11
35 Humpback Moderate 120 kg Landrace 7 16 5 4 32 12 12 T16 Both sides, but right > left
36 Humpback Moderate 120 kg Duroc 7 15 6 4 32 12 12
37* Humpback Moderate 120 kg Duroc 7 14 6 4 31 12 Never
Sum 17 dipped back
19 humpback
1 both
19 severe
19 moderate
37 pigs:
12 pigs 100 kg
25 pigs 120 kg
24 Landrace
13 Duroc
259 579 218 148 1204 451 417 8 pigs 14 ribs
Mean      7 15.6 5.9 4 32.5 12.2 11.6   
Median      7 16 6 4 33 12 11   
Min.      7 14 5 4 31 10 11   
Max.      7 17 6 4 34 14 15   
  1. Number of joints evaluated: 740 cervical joints (37 atlanto-occipital + 259 intervertebral + 444 articular process joints) + 2407 thoracic joints (579 intervertebral + 1158 articular process + 670 [302 separate + 368 merged] rib joints) + 654 lumbar joints (218 intervertebral + 436 articular process joints) = 3801 joints
  2. *Pigs that received medical treatments are labelled with an asterisk; all available details are summarised in Supplemental Table 1
  3. aIn pig 8, T13 and T14 were fused to a block vertebra but were counted as two vertebrae because there were two primary ossification centres in the body of the block vertebra
  4. bVertebral wedging may have interfered with correct identification of the anticlinal vertebra in pig 21