Table 4.
Generation interval calculated across 4-generation pedigrees for the REF cohorts as well as the range and median year of birth of proband individuals
| Generation interval | Proband year of birth | ||
|---|---|---|---|
| Range | Median | ||
| Halter | 9.5c | 1998–2008 | 2006ac |
| Pleasure | 10.3ad | 1996–2007 | 2003b |
| Reining | 11.4b | 2000–2007 | 2005ab |
| Working cow | 10.9ab | 1997–2007 | 2005ab |
| Cutting | 11.8b | 1998–2007 | 2004ab |
| Racing | 9.9cd | 2004–2008 | 2007c |
| All | 10.5 | 1996–2008 | 2005 |
Values sharing the same superscript are not significantly different from one another (generation interval tested independent of year of birth).