it's very good stuff. Not just for youngsters and broodmares as good for horses in hard work or needing condition. Doesn't work out incredibly expensive as ab out £10 a bag and is a 100% complete feed. No need for chaffs or vitamin supplements in addition other than things like cortaflex if they need it. Essentially it works out that if your feed a scoop of chaff and a scoop of mix a day then instead you just feed 2 scoops of the growth.
I use Growth on my TB mare, Winergy recommended it for her and it's work a treat. No expensive as you are only using one feed and not having to buy lots in.....