130 



Maine Agricultural Experiment Station. 1919. 



The sire's side of Spermfield Owl's pedigree runs quickly 

 into the justly famous Golden Lad and Rosette strains. In 

 fact the Owl is an inbred Sultanne's Favorite bull. The dam's 

 side of the pedigree goes into foundation stock rather quickly. 



Transmitting Qualities of Jersey Sires to Their Sons. 



In this section we deal with the sire whose sons' trans- 

 mitting qualities for quantity and quality of milk production 

 are known through the progeny tests of their daughters. For 

 this purpose table 7 has been made. 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: (1) The 

 number which the sire takes in the series of sires, on the but- 

 ter-fat transmitting qualities of his sons is given in the first 

 column; (2) the sire's name is given; (3) immediately under 

 the sire's name is given the sons' names each one of which is 

 indented; (4) beside each bull's name is given his registry num- 

 ber, the number of daughter-dam pairs that he has, the net 

 change in the milk production which his daughters produced in 

 comparison with that of their dams, the net change in the but- 

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



TABLE 7. 



Sires in Order of Sons' Change in Net Butter-Fat. 







Registry 



No. 



Net 



Net 



Net 



No. 



Names of Sire and Sons 



No. 



of 



Change 



Change 



Change 









Pairs 



in Milk 



in % 



in Fat 



1 



Signal's Crown Prince 



61621 













Signal's Successor 



72758 



"3 



+2899.3 



+0~202 



+177772 



2 



Chief Engineer 



47148 



6 



+2174.5 



—0.684 



+ 50.20 





Golden Glow's Chief 



61460 



4 



+2172.4 



+0.453 



+161.93 





Clear Brook Chief 



74685 



2 



+ 278.0 



+1.338 



+153.31 





Mean 







+1225.2 



+0.895 



+157.62 



3 



Tormentor's Tormentor 



52074 















Tormentor's Landseer Signal 



69291 



4 



+2326.7 



+0*292 



+153.55 



4 



Golden Blyth 



49215 















Golden Nero 



62052 



2 



+3369.0 



— 0~543 



+149~77 



5 



Royal Majesty 



79313 



5 



+2138.6 



—0.264 



+ 81.34 





Majestic Fern 



84428 



3 



+2163.3 



+ 0.123 



+143.97 



6 



Lucy's Rioter of St. L. 



63998 



_ 











Roma's Rioter of St. L. 



70951 



3 



+2534.7 



—0.081 



+143.79 



