Table 1.
Characteristics of study animals.
| Breed | Sex (No. Females/Males) |
Age at Start of Training(Range) |
|---|---|---|
| Domestic pigs (Yorkshire, Swedish Landrace, and/or Hampshire) | 17/21 | 5–7 weeks |
| Göttingen minipigs | 4/0 | 25–32 months |
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