Influence of Holstein Friesian genotype on the ...

4-6 weeks before mating CS 4.0 or better and gaining weight. Cows < CS 4.0 calved for 6 weeks require attention to get above 4.0 for mating. Replacements must meet target liveweights to prevent milking feed being diverted to liveweight gain i.e. 30% mature Lwt at 6 months. 60% mature Lwt at 15 months (mating) 90% mature Lwt at 22 months ... ................
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