The foundation of a young horse’s diet is still good-quality hay and access to pasture, which guarantee the fibre needed for the digestive system to function properly. At this stage, however, forage alone is not enough. As the horse gets older and training becomes more intensive, a higher energy requirement has to be taken into account. Energy should not come from cereals alone, though, because too much of them causes excitability and increases the risk of digestive problems. It is better to use sources of energy that release more slowly, such as rice bran or vegetable oils. With these, the young horse receives extra calories in a form that does not affect its temperament for the worse, while supporting condition and stamina.
Besides energy, high-quality protein is enormously important, rich in the essential amino acids needed to build muscle and for the body to develop properly. Lysine and methionine are particularly important, and the horse cannot synthesise them itself. The best sources of protein in the feed are lucerne, linseed cake and plant meals, for example sunflower meal. These are what supply the valuable amino acids that support muscle development, improve condition and speed recovery after training. Rice bran is an interesting addition too. As well as its energy value, it contains natural gamma-oryzanol, a compound known for its beneficial effect on the development of muscle mass.
A young horse also needs a carefully chosen supply of minerals: calcium, phosphorus, magnesium, zinc, copper and selenium, which are responsible for a strong skeleton and a healthy musculoskeletal system. Prevention is particularly important at this age. Shortfalls can lead to health problems that only show themselves later. That is why the diet of a young horse should include feeds or vitamin and mineral supplements designed for this age group. Well-chosen additions can support the body further. Feed yeast improves digestion and the absorption of nutrients, and linseed oil or other vegetable oils supply omega-3 fatty acids, which have an anti-inflammatory effect and support muscle recovery. For young horses that tend to be excitable, calming herbs such as lemon balm, chamomile or hops also work well. They help with concentration and emotional balance during work.
To sum up, a young horse aged 4–6 needs a diet that balances a body still developing with the new demands of work under saddle. Balanced sources of energy, high-quality protein, the right amount of vitamins and minerals, and additions that support health and mental balance are what allow development and work to go together harmoniously. Proper feeding in this period is an investment in the future. Thanks to it, the horse will not only cope better with the demands of training, but will also grow into a strong, healthy and balanced partner for the years ahead! 🐴💚