Sand Colic
In Western Australia this is a common problem. When the new grass from the autumn/winter rains start coming up, the horses are eager to eat some fresh greenery and tend to pull up the whole plants, roots and all, including a few grains of the sandy soil.
Over time the sand accumulates in the gut, causing colic. Pssylium is a natural husk, which picks up the sand before being excreted. You can see the sand as a small pile near or on top of the dung. It’s a different colour to the surrounding sandy soil.
Dose - One rounded dessertspoon daily from the time of the first rains, to about half way through the spring, when you can no longer see sand with the dung.
Available - from stock feeders.

Worms
The most common worm in horses is the strongyle, which is too small to see without a microscope.
The common drenches available for horses, do kill off worms, but can have a detrimental effect on the horse. The drenches also contaminate the dung, poisoning dung beetles.
It has been found that worms tend to proliferate in animals who have low copper in their diet. This can be supplemented by giving them copper sulphate. However, as copper sulphate is a poison in large doses, it is essential to ensure the dose is correct. One quarter of a teaspoonful daily is sufficient. And ensure there is calcium in the diet, in the form of kelp preferably. This antidotes the poisonous effect of copper sulphate, without detracting from the supplement.
There are also available homoepathic complexes which make the gut unattractive to fauna.
Worms are generally only active in the spring and summer months, so only need attention in those months.

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