HF Heifer Cow or Holstein heifers are bred around the age of 11 months to 14 months. During this time, their weight varies between 317 kg to 340 kg, which is nearly 55% of the weight of an adult HF Heifer Cow. This breed is popular for lifting loads, plough and producing higher amount of milk in a day. It gives milk which is rich content of butterfat. Known for very good lactation cycle, HF Heifer Cow is non aggressive in nature.