Table 3.
Summary statistics on the performance records by breeds
| Breed | Sex | Item | Trait | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
| |||||||||||
| Age | DAYS90 (d) | ADG (g) | BF (mm) | EMA (cm2) | RCP (%) | ABF (mm) | AEMA (cm2) | ARCP (%) | |||
| Landrace | Gilt | No. | 76,809 | 72,820 | 73,098 | 70,641 | 75,343 | 70,182 | 67,050 | 71,734 | 66,784 |
| Mean | 161.73 | 150.38 | 607.00 | 14.25 | 47.49 | 57.24 | 12.97 | 45.40 | 57.82 | ||
| SD | 16.92 | 11.09 | 56.75 | 3.24 | 6.09 | 4.02 | 2.49 | 5.97 | 3.94 | ||
| Boar | No. | 25,011 | 23,973 | 23,657 | 23,280 | 24,550 | 22,679 | 21,821 | 22,996 | 21,283 | |
| Mean | 158.76 | 144.14 | 639.81 | 13.50 | 47.10 | 57.62 | 11.69 | 43.90 | 58.65 | ||
| SD | 14.78 | 10.66 | 58.65 | 2.98 | 5.80 | 3.66 | 2.19 | 5.44 | 3.54 | ||
| Yorkshire | Gilt | No. | 239,011 | 225,318 | 225,247 | 230,751 | 235,542 | 223,247 | 214,804 | 219,729 | 208,350 |
| Mean | 159.25 | 152.09 | 596.05 | 14.56 | 47.16 | 57.49 | 13.81 | 45.87 | 57.78 | ||
| SD | 16.29 | 11.18 | 55.64 | 3.13 | 5.62 | 3.36 | 2.81 | 5.43 | 3.34 | ||
| Boar | No. | 42,398 | 40,399 | 39,892 | 40,288 | 41,779 | 38,581 | 37,412 | 38,828 | 35,861 | |
| Mean | 158.56 | 144.77 | 635.60 | 13.63 | 46.79 | 57.90 | 11.90 | 43.79 | 58.87 | ||
| SD | 15.48 | 10.72 | 59.06 | 2.97 | 5.46 | 3.37 | 2.25 | 5.16 | 3.22 | ||
| Duroc | Gilt | No. | 30,685 | 29,586 | 29,583 | 26,145 | 28,459 | 23,203 | 24,833 | 27,165 | 22,063 |
| Mean | 160.31 | 147.24 | 624.74 | 15.08 | 45.64 | 56.78 | 13.33 | 42.83 | 57.63 | ||
| SD | 15.85 | 10.98 | 56.35 | 3.10 | 6.73 | 3.54 | 2.46 | 6.26 | 3.45 | ||
| Boar | No. | 47,383 | 44,579 | 44,214 | 41,359 | 45,020 | 36,470 | 37,841 | 41,416 | 33,253 | |
| Mean | 160.24 | 143.75 | 645.04 | 14.00 | 45.03 | 57.82 | 11.83 | 41.31 | 59.07 | ||
| SD | 16.65 | 11.14 | 59.73 | 2.76 | 6.54 | 2.99 | 2.05 | 5.89 | 2.91 | ||
DAYS90, days to 90 kg body weight; ADG, average daily gain; BF, backfat thickness; EMA, eye muscle area; RCP, retail cut percentages; ABF, pre-adjusted BF; AEMA, pre-adjusted EMA; ARCP, pre-adjusted RCP; SD, standard deviation.