FURTHER DATA ON THE MEASUREMENT OF INBREEDING. 24I 



It is suggested that the two constants be written together for 

 each generation, the coefficient of inbreeding being followed by 

 the coefficient of relationship in brackets. Thus we have 



INBREEDING AND RELATIONSHIP COEFFICIENTS OF KING MELIA 



RIOTER I4TH. 



Zo {K, ) 

 Z. {K, ) 

 Z, (Ks ) 



(Ks) 

 Z, (K,o) 



ZioCi^ii) 



ZAK,,) 







25 

 25.00 



37-50 

 50.00 

 71.88 

 81.25 

 90.63 

 92.77 

 93-65 

 93-85 

 93-85 



(o) 

 (0) 

 (50.00) 

 (62.50) 

 (75-00) 

 (87-50) 

 (92.19) 

 (92.97) 

 (93-75) 

 (93-75) 

 (93-75) 

 (93-75) 



The physical meaning of these expressions is gimple and 

 straightforward. Z4 (i^s) tells us that in the 5th ancestral gen- 

 eration of King Melia Rioter 14th he had only one-half as 

 many different ancestors as was possible for that generation, 

 and of his ancestors three-fourths were common to his sire and 

 his dam. However one looks at the matter there can be no 

 denial that King Melia Rioter 14th is a closely inbred animal. 



In Fig. 51 the heavy broken line gives the relationship co~ 

 efficients for King Melia Rioter 14th. It will be instructive now 

 to consider another example by way of contrast. Again a 

 Jersey bull. Blossom's Glorene (102701), will be taken. Only, 

 the final result need be given. 



INBREEDING AND RELATIONSHIP COEFFFICIENTS OF BLOSSOm's 



GLORENE. 



Z4K0 = O 

 ZAK,) = O 

 Z,(K.) = 12.50 

 Z,(K.) = 12.50 

 Z,(K,) = 25.00 

 Z-,(Ka) = 29.69 

 Z,(K,) = 35-94 

 ZriKs) = 40.23 



(0) 

 (0) 

 (0) 

 (o) 

 (o) 

 (0) 

 (0) 

 (o) 



