I also had questions about feeding my heifer. She is in great shape according to 2 ranchers. She is about an 800 # holstein. I give her about 5 pounds of dairy 14 grain per day and about 20 pounds of alfalfa hay. SOmetimes she gets a up to 5 pounds more hay per day. Now that it is winter, we don't tend to tether her in the field across the street. I've also read she should be getting grass hay during the winter. Would you be doing anything different and if so what. Our temperatures are no lower than 35-40 during the day (right now. Nights are about 20. Eventually 30 something days will be par for the course and nights in the teens. She is 17 mo old and about 6 weeks pregnant.