midtncattle- I would keep him on what he is on until he is gets over weaning then start working the grain into his diet. Work him up to 2%-3% percent of his body weight in a grower type feed adjust the amount of feed as he gains to stay at the 2-3%, free choice hay or pasture, 90 days out add more fat (corn or barley to his ration)
We worm them every 45 days, rotating wormer types each time.
If you have more than 1 to feed they do better, competition and all.
I never go over 25 pounds a day, and we have averaged 3.5 adg with our slow growing club calves, over 4 a day with commercial Angus. We start with about 6 pounds a day and add a pound a feeding every 4 or 5 days until we get them where we want them on feed.
Calf weight Feed
450 -12
600 - 18
800 - 20
1000-1200 - 24
Works for us