﻿TRANSMITTING ABILITY OF HOLSTEIN-FRIESIAN SIRES 



11 



Table 3. — Summary of sires having six or more yearly-record daughters whose 

 dams have yearly records, in order of relative increase in pounds of butterfat, by 

 daughters over dams 





Increase (+) or decrease (— ) of daughters over dams. 



Sire 



Milk 



Butterfat test 



Butterfat 





Pounds 



Per cent 



Amount 



Per cent 



Pounds 



Per cent 



A 



+5, 110. 9 



+4, 135. 3 



+3, 404. 4 



+3, 770. 4 



+3, 423. 



+2, 901. 3 



+1,071.4 



+2,915.7 



+3, 6S0. 7 



+1, 122. 7 



+1, 062. 7 



+2, 327. 6 



+809. 4 



+1,915.4 



+892. 9 



-744. 1 



+364. 3 



+184. 2 



-1,108.7 



-269. 4 



-619. 3 



-2, 109. 8 



-1,025.5 



+35.3 



+24.1 



+18.2 



+21.4 



+17.1 



+15.4 



+5.6 



+17.2 



+23.7 



+5.9 



+6.5 



+14.6 



+5.8 



+12.8 



+6.0 



-4.6 



+2.1 



+1.3 



-7.3 



-1.4 



-4.2 



-12.0 



-5.4 



+0.13 

 +0.11 

 +0.09 

 +0.03 

 +0.03 

 +0.04 

 +0.29 

 -0.02 

 -0.19 

 +0.19 

 +0.22 

 -0.-21 

 +0.01 

 -0.35 

 -0.12 

 +0.19 

 -0.09 

 -0.11 

 +0.05 

 -0.23 

 -0.26 

 +0.05 

 -0.19 



+4.02 

 +3.24 

 +2.59 

 +0.94 

 +0.91 

 +1.16 

 +7.92 

 -0.60 

 -5.43 

 +5.46 

 +6.57 

 -5.80 

 +0.28 

 -8.84 

 -3.27 

 +5.90 

 -2.63 

 -3.48 

 +1.41 

 -6.30 

 -7.47 

 +1.54 

 -5.18 



+191. 



+163. 8 



+138. 7 



+126. 3 



+120. 4 



+109. 



+98.7 



+92.4 



+91.0 



+76.6 



+73.9 



+44.8 



+30.6 



+17.5 



+13.2 



+6.4 



-3.9 



-10.4 



-32.2 



-51.3 



-58.2 



-60.5 



-72.3 



+40.9 



B - . 



+28.2 



C -- 



+21.4 



D -. 



+22.4 



E 



+18.1 



F .. 



+16.7 



G 



+14.2 



H . 



+16.3 



I 



+16.8 



J 



+11.6 



K 



+13.5 



L 



+7.7 



M .... 



+6.2 



N 



+2.9 



. - 



+2.4 



P 



+1.2 



... 



—0.7 



R.:: : 



-2.3 



s . . - 



—6.0 



T 



—7.5 



U 



—11.4 



V 



—10.6 



w 



—10.4 







METHOD OF INHERITANCE 



A study of tlie records of the daughters and their dams in Table 

 2 shows a remarkable variation. Note the following instances: 



The highest-record daughter of sire A is out of the dam that has 

 the lowest record of the five. His lowest-record daughter is out of the 

 dam with the next lowest record. The one daughter which failed 

 to make a larger record than her dam was from the dam with the 

 highest butterfat record, and yet this daughter's record is 6,491 

 pounds of milk and 215 pounds of butterfat lower than his highest- 

 record daughter. 



Sire B's highest-record daughter is out of a dam with the third 

 from the lowest record, and his daughter with the next to lowest 

 record is from the fourth highest dam. There are two full sisters in 

 his list of daughters. One is second in the list of 13 daughters, the 

 other is ninth, the latter with 3,301 pounds of milk and 184 pounds 

 of butterfat less than her sister. 



Sire C has 12 daughters whose dams have yearly records. The 

 highest-record dam, which produced 892 pounds of butterfat, has a 

 daughter with the third highest record, or 891 pounds of butterfat; 

 whereas the lowest-record dam, with 404 pouncls of butterfat, has a 

 daughter with the fourth highest record, or 862 pounds of butterfat. 

 His highest-record daughter produced 917 pounds of butterfat and her 

 dam 730 pounds. The next highest daughter, which produced 893 

 pounds of butterfat, is from a dam with 574 pounds. 



ITie lowest-record dam in the list of sire D produced 388 pounds of 

 butterfat; her daughter, sire D's lowest-producing daughter, has a 

 record of 507 pounds of butterfat, an increase of 119 pounds. Sire 

 D's highest-producing daughter produced 844 pounds of butterfat 

 and her dam produced 572 pounds, an increase by the daugliter of 



