Longevity of English Thoroughbred Horses 45 



Table III 



Longevity of thoroughbred mares by parental ages 

 (sire at covering, dam at foaling) 



n 



€z = i 



( Years) 

 Ve Median 



Whole sample 



Foaled 1875-80 (A) 

 „ 1860-64 (B) 



Mares foaled 1875-80 {Sample A) and 1860-64 {Sample B) 

 Dam (Sample A) : 



under 8 yrs. 

 8-12 

 13-16 

 ^ 17 



Sire (Sample A) : 



under 8 yrs. 



8-12 



13-16 



17-19 



^ 20 



Dam and sire : 



^ 12* Sample: A 



B 



A + B 



^ 13* A 



B 



< 9 

 ^ 16 



A + B 

 A 

 B 

 A 

 B 



Progeny of Hermit, Galopin and Hampton 



All mares : 



Got in or after sire's 20th 



year : 



Got in or after sire's 16th 



year, dam ^ 16 at foaling : 



All mares {A, B and selected sires) 

 by parents $5 16 yrs 154 



16-45 



* Include extreme groups ( <9, > 16). 



0-38 



2112 



