[Guernsey Cow][American Guernsey Association]

Genetic Evaluation & Production Information

January 2010

[] Top 100 Bull Rankings January 2010 (All Bulls Born in Last 25 Years)

[]Active AI List January 2010 - Production with links to pedigrees and web pages for each bull!

[]Active AI List January 2010 - Type

[]Young Sires Jan. 2010

[]Top 100 Heifers for PA CPI January 2010

[]Top 300 CPI Cows January 2010

Top CPI Daughters of :
Aaron Adacka Aliance Alstar Altanic Archie Bamboozle Bingo Bolero Challenge
 Conrad Daunte Decision Double L Flash Glacier Goldust Goliath Grumpy Hudson
Legacy Les Lewis Magicman Masterpiece Mentor Mr America Nash Natural
Response Ronald Royalty Samson Showtime Silverado Skipper Spider Turley Yogi


[]Find a Bull by NAAB #

[]All-Time Class Leaders

[]What Bulls had the Most Daughters Scored?

[]What Bulls had the Most Daughters on Test?

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Guernsey PTI Formula (Updated Nov. 2006)

(25*(PTAP/14))+(25*(PTAF/19))+(10*(PTAT/.84))+(10*(UDC/.70))+(10*(FLC/.68))+

(10*(PL/2.39))+(3*(DPR/1.24))+(4*((3-SCS)/.17))+(3*(PTA Strength/0.95))

UDC and FLC should be rounded to the nearest 10th prior to use in the PTI formula

Udder Composite (UDC)

(.15*(FU/1.33))+(.15*(RH 1.24))+(.05*(RW/1.22))+(.15*(UC/.84))+(.33*(UD/1.53))+(.15*(TP/1.05))-(.02*(TL/1.11))

Foot & Leg Composite (FLC)

(.36*(RV/.42)) + (.48*(FA/.49)) - (.16*(RL/.65))

You MUST Be Kidding...What Do All These Numbers Mean?

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American Guernsey Association
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Reynoldsburg, Ohio 43068
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E-mail: sjohnson@usguernsey.com

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