Hover: Finding the Prepotent Sire 
byS 
ADVANCE REGISTRY REQUIREMENTS AND 600 POUNDS STANDARD 
Class Regular Requirement 600 pounds Standard 
A 360.00 600.00 
B 341 .75—360.00 581.75—600.00 
iC 323 .50—341.75 563 .50—581.75 > 
D 305 .25—323.50 545 .25—563.50 
E 285 .00—305.25 527 .00—545.25 
F 268 .75—285.00 508 .75—527 .00 
G 250.50—268.75 490 .50—508.75 
upon re-entry when mature. In com- 
puting ‘“‘the mature cow equivalent”’ 
for any cow it will be found simplest 
to subtract the individual entrance 
requirement for the cow in question, 
and add this to the actual record made. 
Thus, a certain cow at 2 years of age 
made 606 pounds of butterfat. The 
entrance requirement at this age is 
250.5 pounds of butterfat. Now, ac- 
cording to above formula, we have 
(360— 250.5) + 606 = 715.5 pounds, or 
the theoretical production of this cow 
at 5 years and above. 
If a certain sire happens to produce 
a single daughter with a 600-pound 
record, we do not have in this alone 
adequate proof of his breeding capacity. 
This may be due to the dam, or, per- 
haps, a fortuitous variation. If, how- 
ever, he produces three or more such 
daughters, the suggestion of individual 
prepotency becomes very strong. With 
this thought in mind we have, in the 
table at the botton of this page, listed 
all sires which have produced three or 
more daughters with records the equiva- 
lent of 600 pounds. 
From the table it will readily be seen 
that we have up to December, 1915, only 
thirty-twag sires which have produced 
three or more “ equivalent of 600 pounds”’ 
daughters. There may be many 
others which were capable of such a 
ALL SIRES HAVING AT LEAST THREE ‘EQUIVALENT OF 600 POUNDS” 
DAUGHTERS 
Reg. Birth No.of A. R. No. of ‘600 Ib.” 
No. Date Daughters Daughters 
Nmap whsinesoh thaeeNia ss — =: See oe a ae. 9001 1903 17 14 
Tran ae Wit yoROSes Kein or, tac a stole a cereiora ce 8336 1901 24 12 
mime ne OCI. Poke cis ary ole wiaed etm o's 1836 §©1905 23 11 
inapre Via shen Sisequel’ 2\: At. .cqeperss oe 11462 1900 64 9 
imp: Gov. of the Chene.:. 21... 0....2. 10563. 1904 21 9 
napsswonds Marre): fo sk oe piece oe 14359 1903 24 7 
ap Galascye Soe queliy ct. Basck Matus 16904 =1904 38 6 
[Rea Gl OMe ete iat tee sae meee de ee aN 8917 = 1903 11 5 
Stranford’s Glenwood of Pinehurst...... 13609 1906 12 4 
edarce iavgicinons eevee ep the aca ttencd: 11893 1907 5 4 
Dolly Dimple’s May King of L......... 12997 1907 5 4 
Charmante:s Rose Kunow: 2.4) 2.92 cf8 11746 1906 8 ft 
ei ou ia Shem ree eave. erackaierar eed eae 11084 1906 7 4 
liewel'selndependences ann.on e020 ee 10324 1905 9 4 
HethrowBascyes ee mera. CE ES 11366 1906 8 4 
riplet Cham pron were io rank 13067 = =1907 12 4 
edvardeBbayee cement cas 11074 1905 10 4 
Imp. Golden Secret of Lilyvale......... 10028 1904 10 4 
Justinee’s Sequel of the Preel.......... DAO. OP ter 17 + 
[Bavantomney rem tee cra ie ee 11611 1905 5 3 
inipsCoras"Gov.e of Chilmarke ay y.5 oe 8971 1903 28 3 
Glenwood’s Main Stay 16th............ 9384 1903 9 3 
Glenwood’s Reputation................ 7687 =1901 15 3 
Glenwoods's!sirantord).s.4r ssc a+ oo 9386 1903 15 3 
iB LU TSL9n 11215 | RP a Ren RD SNR Tae AAR ere 4781 1896 11 3 
SL EE See See et aa Lee OO Ae ce 63 1904 27 a 
limprebtoldenvlN i. 2. ether Siren sickens 12179 1906 5 3 
Fernwood of Homestead............... 7448 1901 9 3 
Gniyd etic. ee atta. Pee Es, 3966 1894 5 3 
pent ets XeeISIO’ 64.6 Wo \onn oie sae 7992 1902 28 3 
Glenwood Boy of Haddon............. 4605 1895 36 3 
itipabucAoneueTOE bs. , soi vc as os. hoe2o” L905 13 3 
