dosage & aptitudinal question

Understanding pedigrees, inbreeding, dosage, etc.

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skywatcher
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dosage & aptitudinal question

Postby skywatcher » Sat Dec 25, 2010 11:51 pm

is the CD & DI for this mare a typo?

STONEY VENTURE M, 1993 DP = 15-5-0-0-0 (20) DI = Inf CD = 1.75


if not what does it mean?

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deaky
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Re: dosage & aptitudinal question

Postby deaky » Sun Dec 26, 2010 11:53 am

skywatcher wrote:is the CD & DI for this mare a typo?
STONEY VENTURE M, 1993 DP = 15-5-0-0-0 (20) DI = Inf CD = 1.75
if not what does it mean?


Nope, it isn't a typo.
Look:
DI = 15+5+0 / 0+0+0
There are only zeroes under the line, you can't define the result, thus you can't define DI.

CD = (2x15+5) - (0+0) / 15+5+0+0+0 = 35 / 20 = 1,75
This one is clear.

If I remember correctly, this is how DI and CD are defined, so... I think DI and CD are correct.
Or am I wrong?