Outdoor chores with 2 month old

I am a ftm and live on a farm and up until recently I have had help with the outdoor chores. Now I am not sure what to do with my 2 month old when I need to go feed horses in the morning. SO isn't home when they need to be fed in the morning so he can't help. It takes about 10-15 minutes. Can I leave her alone in the house (in her crib) while I go feed them? I would try to get down there while she is sleeping. I just don't know if it's OK to leave her in the house alone while I am down at the barn, but it's not safe for me to being her with me. Any advice is welcome.