[Guernsey Cow][American Guernsey Association]

Genetic Evaluation & Production Information

[] Top 100 Bull Rankings December 2011 (All Bulls Born in Last 25 Years)

[]Active AI List December 2011 - Production

[]Active AI List December 2011 - Type

[]Young Sires December 2011

[]Top 100 Heifers for PA CPI December 2011

[]Top 300 CPI Cows December 2011

Top CPI Daughters of :
Aaron Adacka Advance Alstar Altanic American Pie Archie Banger Bingo Blue Spruce Bolero Challenge
Decision Double L Fame Glacier Geo Goldust Goliath Grumpy Hudson Iceberg Labron
Legacy Les Lewis Lorry Luxury Magicman Mentor Mission Monarch Mr America Nick Natural Neon Regal Regis
Response Ronald Royalty Showtime Skipper Special Spider Skipper
Success Tiller Turley Vilter 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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E-mail: sjohnson@usguernsey.com

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