Animal Husbandry Investigations in 1919. 



255 



percentage and butter-fat in comparison with what the daugh- 

 ters' dams' yield was for these same variables. The informa- 

 tion for the Guernsey sires has been arranged to bring out this 

 point in table I. The arrangement of this table is made on the 

 basis of how much butter-fat the sire's son or sons caused his 

 daughters to produce in excess or defect of their dams. The 

 mean of each item is taken for each sire's son if he has more 

 than one son of known transmitting powers. The information 

 given in this table is as follows: (i) the number which the sire 

 takes in the series of sires, in the butter-fat transmitting quali- 

 ties of his sons is given in the first column; (2) the sire's name 

 is given; (3) immediately under the sier's name is given the 

 sons' names indented somewhat; (4) beside each bull's name is 

 given his registry number, the number of daughter-dam pairs 

 that he has, the net change in the milk production which his 

 daughter produced in comparison with their dams, the net 

 change in the butter-fat percentage and the net change in the 

 butter-fat. 



Out of a total of 181 sires with sons which are tested by 

 their daughter-dam test only those are chosen which have at 

 least two such tested sons. Table 1 shows this information for 

 this selected list. 



TABLE 1. 



Table Showing Transmitting Qualities of Certain Guernsey 

 Sires to Their Sons. 







Registry 



No. 



Net 



Net 



Net 



No. 



Name of Sire and Sons 



No. 



oi 



Change 



Change 



Change 









Pairs 



in Milk 



in % 



in Fat 



1 



Glenvood's Combination 



8927 













Glenwood's Combination 7th 



11892 



"5 



+3174.0 



+0~128 



+r76~46 





G'enwood's Combination 8th 



12550 



5 



+2704.6 



—O.200 



+109.10 





Mean 







+2939.3 



—0.036 



+142.78 



2 



Prance's Masher 2d 



7248 















Imp. Masher's Galore 



8572 



10 



+3368.9 



—0.205 



+149~53 





Imp. Masher's Sequel 



11462 



13 



+2128.1 



—0.373 



+ 65.79 





Mean 







+2748.5 



—0.289 



+107.66 



3 



Imp. Masher's Galore 



8572 



10 



+3368.9 



—0.205 



+149.53 





King Masher 



11084 



3 



+1843.3 



+0.647 



+178.10 





Begalore 



10101 



2 



+1262.0 



+ 0.225 



+ 98.60 





Go'.den Hastier 



10464 



3 



+ 574.7 



—0.190 



+ 2.54 





Mean 







+1226.7 



+ 0.228 



+ 93.08 



4 



Sheet Anchor 2d 



4149 



2 



— 161.5 



+0.790 



+ 66.05 





Sultana's Sailor 



7536 



3 



+3452.0 



—0.480 



+127.89 





Chantilly's Sheet Anchor 



12067 



4 



+ 672.3 



+0.820 



+105.28 





Fillmore's Sultan 



9117 



3 



+ 142.7 



+0.240 



+ 27.50 





Mean 







+1422.3 



+0.193 



+ 8S.8& 



