Quarter Horse
calm, agile, strong sprinter
Origin
USA
Withers height
145–163 cm
WesternReiningLeisureCattle work
Traits & strengths
- ✦explosive sprint acceleration (quarter mile)
- ✦innate “cow sense” for cattle work
- ✦calm, cooperative nature — beginner-friendly
- ✦extremely agile and balanced
Breed-typical predispositions
PSSM1 (GYS1)
Disease →dominant — muscle metabolism; management: low-starch + high-fat + exercise
HYPP (SCN4A)
Disease →dominant, Impressive line — muscle tremor/paralysis; gene test available
HERDA, MH, GBED, MYHM
Disease →further tested hereditary defects of the line
Latest findings
PSSM1 cause (GYS1)
2008A dominant GYS1 mutation identified as the cause of PSSM type 1 — the basis for a gene test and targeted management.
Source · McCue et al. — GYS1 mutation