Table 1.
Frequency analysis and the probability of occurrence of white striping (WS) degrees of severity with respect to the growth production variables included in the prediction model.
| Variable | WS frequency1 |
Total | ||||
|---|---|---|---|---|---|---|
| 0 | 1 | 1.5 | 2 | 2.5 | ||
| Sex (%) | ||||||
| Female | 237 (50) | 186 (40) | 30 (6) | 14 (3) | 3 (1) | 470 |
| Male | 545 (14) | 1,725 (45) | 943 (24) | 547 (14) | 90 (2) | 3,853 |
| Age (%) | ||||||
| 4 wk | 342 (61) | 218 (39) | 0 | 0 | 0 | 560 |
| 6 wk | 410 (12) | 1,637 (46) | 929 (26) | 472 (13) | 93 (3) | 3,541 |
| 8 wk | 30 (14) | 56 (26) | 44 (20) | 89 (41) | 0 | 219 |
| Strain (%) | ||||||
| Standard breast yield A | 559 (29) | 860 (44) | 311 (16) | 163 (8) | 44 (3) | 1,937 |
| High breast yield B | 31 (16) | 104 (55) | 33 (17) | 18 (9) | 4 (2) | 190 |
| High breast yield C | 192 (9) | 947 (43) | 629 (29) | 380 (17) | 49 (2) | 2,197 |
| Live weight (%) | ||||||
| <2,000 g | 274 (70) | 116 (30) | 2 (1) | 0 | 0 | 392 |
| >2,000– < 2,500 g | 99 (37) | 153 (57) | 15 (6) | 2 (1) | 0 | 269 |
| >2,500–<3,000 g | 122 (23) | 272 (50) | 94 (17) | 46 (9) | 5 (1) | 539 |
| >3,000–<3,500 g | 200 (13) | 732 (47) | 386 (25) | 205 (13) | 43 (3) | 1,566 |
| >3,500–<4,000 g | 80 (6) | 589 (43) | 424 (31) | 226 (17) | 44 (3) | 1,363 |
| >4,000 g | 6 (3) | 49 (25) | 52 (27) | 82 (42) | 5 (3) | 194 |
| Breast weight (%) | ||||||
| <500 g | 287 (67) | 132 (31) | 6 (1) | 2 (0) | 0 | 427 |
| >500– < 750 g | 394 (21) | 1,036 (55) | 322 (17) | 99 (5) | 17 (1) | 1,868 |
| >750– < 1,000 g | 96 (5) | 722 (39) | 602 (32) | 386 (21) | 68 (4) | 1,874 |
| >1,000 g | 3 (2) | 19 (13) | 33 (23) | 74 (52) | 12 (9) | 141 |
1
n (% is based on the total number within each row).