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Relation of birth weights and maternal weights to litter size and time period.
| Time period | Litter Size | N | Birth weight (g) Mean +/− s.d. | N | Maternal weight (g) Mean +/− s.d. |
|---|---|---|---|---|---|
| 1994–2001 | 2 | 82 | 29.3 +/− 4.08 | 60 | 362.4 +/− 33.18 |
| 1994–2001 | 3 | 55 | 26.8 +/− 2.71 | 29 | 382.6 +/− 29.01 |
| 2002–2011 | 2 | 67 | 29.9 +/− 4.68 | 54 | 390.5 +/− 55.41 |
| 2001–2011 | 3 | 122 | 28.5 +/− 4.50 | 84 | 409.8 +/− 43.95 |
