Group | Cluster number1) | Number of pigs (n, %) |
---|---|---|
I | Cluster 1 | 12,026 (24.9) |
II | Cluster 2 | 8,309 (17.2) |
Cluster 3 | 7,778 (16.1) | |
III | Cluster 4 | 4,525 (9.4) |
Cluster 5 | 6,081 (12.6) | |
Cluster 6 | 4,594 (9.5) | |
IV | Cluster 7 | 1,610 (3.3) |
Cluster 8 | 1,455 (3.0) | |
Cluster 9 | 1,920 (4.0) |
1) Each cluster is shown in Figure 1.
Group2) | Grade | Korean pig grade1) | |
---|---|---|---|
|
|||
Appearance rate of 1st grade (%) | Appearance rate of final grade (%) | ||
I | 1+ | 100 | 95 |
1 | - | 5 | |
2 | - | - | |
II | 1+ | 55 | 50 |
1 | 45 | 49 | |
2 | - | 1 | |
III | 1+ | 8 | 7 |
1 | 57 | 57 | |
2 | 35 | 36 | |
IV | 1+ | - | - |
1 | 7 | 7 | |
2 | 93 | 93 |
Treatment | Group1) | ||||
---|---|---|---|---|---|
|
|||||
I | II | III | IV | ||
Carcass weight (kg) | 86.43±1.66b | 86.32±3.45c | 86.34±6.13bc | 87.90±10.99a | |
Backfat thickness (mm) | 21.99±1.37c | 22.33±2.83b | 21.98±4.58c | 23.16±7.09a | |
Primal cuts (%)2) | Shoulder blade | 6.65±0.25a | 6.65±0.25a | 6.64±0.26b | 6.59±0.27c |
Shoulder picnic | 12.93±0.35a | 12.93±0.38a | 12.93±0.40a | 12.89±0.45b | |
Loin | 11.53±0.34c | 11.56±0.38b | 11.55±0.44b | 11.63±0.54a | |
Belly | 19.06±0.86c | 19.10±0.91b | 19.09±0.99bc | 19.23±1.14a | |
Ham | 22.02±0.81a | 21.99±0.83b | 21.93±0.87c | 21.80±0.94d |
1) Group I, pigs in cluster 1; Group II, pigs in clusters 2 and 3; Group III, pigs in clusters 4, 5, 6; Group IV, pigs in clusters 7, 8, 9 (Table 1, Figure 2).
The confidence intervals for each regression are shown in Supplementary Table S2.1–2.4.
Item | A grade | B grade | C grade | D grade |
---|---|---|---|---|
Farm (n = 93) | 1 (1.08%) | 62 (66.67%) | 29 (31.18%) | 1 (1.08%) |
Farm Management Grade is the management grade obtained when the mean values of carcass weight and backfat thickness of pigs in each farm were standardized to the mean and standard deviation of all pigs (Supplementary Table S1) and entered a k-means model (Figure 2). These results exclude farms with fewer than 25 pigs shipped.
Pig group1) | Farm Management Grade | |||
---|---|---|---|---|
|
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A grade | B grade | C grade | D grade | |
I (%) | 47.24 | 28.27±5.91 | 17.72±3.75 | 4.3 |
II (%) | 31.5 | 35.52±3.52 | 28.66±3.08 | 6.92 |
III (%) | 20.47 | 29.84±5.16 | 36.55±4.45 | 28.16 |
IV (%) | 0.79 | 6.40±3.26 | 17.0±4.31 | 60.62 |
Farm Management Grade is the management grade obtained when the mean values of carcass weight and backfat thickness of pigs in each farm were standardized to the mean and standard deviation of all pigs (Supplementary Table S1) and entered a k-means model (Figure 2).
Korean pig grade (Final grade)1) | Farm Management Grade | |||
---|---|---|---|---|
|
||||
A grade | B grade | C grade | D grade | |
1+ grade (%) | 61.42 | 47.88±8.00 | 32.04±7.47 | 4.77 |
1 grade (%) | 30.71 | 35.33±5.22 | 37.55±5.15 | 13.13 |
2 grade (%) | 7.87 | 16.79±5.01 | 30.40±7.24 | 82.10 |
Farm management grade is the management grade obtained when the mean values of carcass weight and backfat thickness of pigs in each farm were standardized to the mean and standard deviation of all pigs (Supplementary Table S1) and entered a k-means model (Figure 2).