Indeterminate nodules are the only type found in Caesalpiniodeae and Mimosoideae and the most common type in Papilionoideae (Sprent, 2001; p. 32). As a result of the variety of ways the plant is infected by rhizobia, there are different types of nodules.
Vitamins are organic compounds that are needed in even smaller quantities than minerals by the horse, although no less critical. Vitamins can be divided into two groups, the fat soluble vitamins A, D, E and K and the water soluble C and B-complex vitamins.
Adding a commercially fortified feed will offer some vitamin E to your horse s diet -- the average feed contains 150 IU or less per pound. Therefore to obtain the same 1100 IUs as from healthy pasture, you would need to feed more than 7 pounds of feed per day an amount too high for most horses.orses that graze on pasture usually get all the vitamin E they need. Fresh grass contains approximately 110 IUs of vitamin E per kg of dry matter. If your 1100 lb (500 kg) horse spends all day on a healthy field of grass, a generalized level of consumption would be 22 lbs (10 kg) of dry matter each day.