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Replacement gilts – age at first service – new advice 08 Mar 2010
I am sure you have seen the interesting report on age at first service by JSR Genetics revealing that age at first service – in terms of numbers born alive and returns to service – takes precedence over bodyweight and fat P2 level. They claim that 240 days old shows the best response and is most cost effective, with bodyweight and fat cover far less important within quite wide boundaries.
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