| | Total population | Active population | Reference population |
|---|
n | 328,706 | 264,084 | 5026 |
Maximum generations | 17.14 | 17.96 | 14.52 |
Equivalent generations | 9.44 | 9.93 | 7.81 |
Complete generations | 5.64 | 5.94 | 4.67 |
Founders | 1056 | 428 | 344 |
\({F}_{e}\) | 33 | 33 | 36 |
\({F}_{eq}\) | 871 | 335 | 281 |
Ancestors | 1026 | 301 | 222 |
\({F}_{a}\) | 19 | 19 | 21 |
\(F\) | 7.51% | 7.43% | 8.39% |
\(F>0\) | 98.74% | 99.98% | 96.62% |
\({F}_{6}\) | 3.20% | 2.75% | 6.08% |
\({F}_{3}\) | 1.22% | 1.06% | 3.13% |
\(\Delta F\) | 0.96% | 0.88% | 1.33% |
\(\mathrm{AR}\) | 11.31% | 11.37% | 10.76% |
- n number of animals, \({F}_{e}\) effective number of founders, \({F}_{eq}\) number of equivalent founders, \({F}_{a}\) effective number of ancestors, \(F\) classical inbreeding coefficient, \(F>0\): % of animals with an \(F\) higher than 0, \({F}_{6}\) inbreeding at 6th generation, \({F}_{3}\) recent inbreeding coefficient (at 3rd generation), \(\Delta F\) intergenerational average increase in inbreeding, \(AR\) average relatedness
- Total population comprises the whole Pura Raza Española horse population; active population comprises the last two generations (each generation is 10 years); reference population comprises the last five generations from horses with measured morphological traits who are descendants of horses contributing with a \({F}_{ij}\) ≥ 6.25% in at least four offspring
