graze-l July 2006: [SPAM] - Re: [SPAM] - Re: [SPAM] -
Re: [Graze-l] Crossbreeding - Email found in subject - Email found in subject -
Email found in subject
If fertility is 5% inheritable and other traits in the herd such as udders
and production are 45% inheritable, wouldn't it be more profitable to
concentrate on the higher heritability traits until they are satisfactory
before addressing something that is only 5% inheritable? Keep in mind that
the more traits you select for, the slower the genetic improvement in each
trait.
Clay
MO Ozarks
----- Original Message -----
From: "Shorty" <siesta@ihug.co.nz>
To: <graze-l@witt.ac.nz>
Sent: Saturday, July 01, 2006 3:40 AM
Subject: [SPAM] - Re: [SPAM] - Re: [Graze-l] Crossbreeding - Email found in
subject - Email found in subject
Dave Gneiser wrote:
>
> We've been there and done the fertility trait discussion. Fertility is a
> very low inherititble trait. Fertility is more environmental than
> genetic.
NZ indications show fertility as a 5% inheritable trait. Move that out
10 years and my cows are far more fertile. Add breeding and good
management and the farmer must be a winner.
regards
Ian Buckingham
New Zealand
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