I need your help and I apologize in advance if this is a naive question but I want to make sure I am handling my horse's feeding properly since I'm new to this situation. My horse coughs when she is on alfalfa due to the dust and my vet recommended that I switch her over to straight grass (which she isn't thrilled about). I know that the nutritional value of grass isn't as good as alfalfa so I picked her up some feed to give her some additional energy/nutrients. My question is that I don't know how much to necessarily give her, I tried reading the directions on the bag and they were a little too complex for me to understand. Is there a rule of thumb I should follow? Right now I'm giving her about 2 lbs or so a day. She's a good weight now but I don't want her to become underweight.
Also, if you have any other suggestions than the grass I'd love to hear it. Thanks in advance for the help!