With good nutritional care, replacement heifers reach puberty around 12 months of age. | Download this photo. K-State experts offer advice on getting heifers prepared for their first breeding season MANHATTAN, Kan. — Anyone who has lived with teenagers can attest that their food consumption can be high as they are rapidly growing to their adult size. In much the same way, growing beef herd replacement heifers also need to have their nutritional needs…