Horse haemoglobin phenotyping by agarose gel isoelectric focusing comparison of Thoroughbreds with other Equidae*

By using isoelectric focusing in thin agarose slab gels 1049 Thoroughbred, 82 Nooit-gedachter, 45 Percheron and 244 horses of other breeds were examined. The numbers of other Equidae tested were 107 donkeys, 50 mules, 4 common zebras (Equus burchelli boehmi) and 8 mountain zebras (Equus zebra hartmannae). Phenotypic data are presented for all tested animals and gene frequencies are calculated for the horses.