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B13 Elements of beef cattle breeding technologies ​Pregnancy length of beef cattle: 282 days Birth: Mostly occurs during spring, but there can be an additional calving period 6 months later Suckling for 6-8 months Cow-calf system. Should be as cheap as possible and as extensive as possible Can be on the pasture Extra feed for the calves and not for the cows Weaning: 200 days old, around 200 kg. ..