I have 35 head of angus cross bred heifers. 20 head were AI’d to angus bulls to start calving the first March for 30-45 days. 15 were bull bred to start calving February 15 for 30-45 days. All bull bred or followed up bulls are angus low birth weight easy calving. Heifers were preg checked mid November and given scour guard and vibrio-lepto vaccinations. They were also poured. They ranged 950-1050 lbs at that time.