Pedigree Analysis of Bulls in Section 2 - December 2020
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The following table lists the bulls which have the highest average percentage of genes in common with the bulls in Section 2A. This value can be used as an indicator of which sires are having a large contribution to the Holstein breed. The percent of genes two related bulls have in common depends on how many generations separate them. For example, on the average 50% of a bull's genes are identical to the genes of his sire, 25% to one of his grandsires and 12.5% to one of his great grandsires.
  NUMBER OF TIMES A BULL APPEARS IN EACH GENERATION OF SECTION 2A BULLS
Name 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Percent Genes in
Common
ROUND OAK RAG APPLE ELEVATION 5 36 272 1250 5007 13089 23138 24130 13196 3947 907 102 73 24 1 15.28
PAWNEE FARM ARLINDA CHIEF 2 22 221 1031 4075 12967 24400 27494 18156 8899 3145 599 161 6 14.95
O-BEE MANFRED JUSTICE-ET 1 29 102 493 854 446 61 2 13.23
PICSTON SHOTTLE-ET 6 30 137 415 445 89 2 10.66
ENSENADA TABOO PLANET-ET 7 35 171 486 67 4 10.24
MOUNTFIELD SSI DCY MOGUL-ET 31 161 68 2 9.97
OSBORNDALE IVANHOE 1 18 158 901 3928 14158 34543 51958 48652 29040 12464 4122 1063 243 9.95
S-W-D VALIANT 1 4 37 306 1330 4808 8692 8228 3195 1171 344 24 1 9.66
CARLIN-M IVANHOE BELL 10 82 428 1623 5067 7235 4097 1808 351 74 70 24 1 9.51
HANOVERHILL STARBUCK 4 30 183 714 2183 3259 1750 607 88 3 8.22
ROYLANE SOCRA ROBUST-ET 5 57 255 39 2 7.91
WALKWAY CHIEF MARK 1 14 141 491 1642 4054 3811 1572 277 19 7.87
EMPRISE BELL ELTON 7 64 239 913 2110 1785 304 31 1 7.85
TIDY BURKE ELEVATION 5 36 272 1250 5008 13091 23150 24137 13207 3967 934 129 73 24 7.64
MADAWASKA AEROSTAR 8 76 304 935 1769 1205 405 80 3 7.62
TO-MAR BLACKSTAR-ET 6 30 183 685 2168 2488 1207 283 25 7.48
PAWNEE FARM REFLECTION ADMIRAL 2 22 221 1031 4075 12967 24403 27497 18156 8901 3146 600 161 6 7.47
HA-HO CUBBY MANFRED-ET 1 31 109 532 932 487 63 4 7.15
SEAGULL-BAY SUPERSIRE-ET 1 17 121 30 1 6.74
CAROL PRELUDE MTOTO-ET 6 40 161 497 544 124 17 6.44
Percent Genes in Common is calculated as the total of:
GENES IN COMMON = 1.0 (if the bull appears in Section 2)
 

+ 0.5 times the number of sons
+ 0.25 times the number of grandsons
+ 0.125 times the number of great-grandsons
+ 0.0625 times the number of great-great-grandsons.
 
 

This total is then divided by 646. (Total bulls in Section 2).
Total percent genes in common of all bulls combined is more than 100% because several of the bulls listed above are related to each other. For example, half of the genes which O-Bee Manfred Justice-ET has in common with the Section 2 bulls are also the same genes which his sire, Ha-Ho Cubby Manfred-ET, has in common with these bulls.