This section is from the book "The Horse - Its Treatment In Health And Disease", by J. Wortley Axe. Also available from Amazon: The Horse. Its Treatment In Health And Disease.
It is still common practice to turn hunters out to grass for the summer, but many sensible men are averse from exposing their animals to the heat of the sun and the torments of attack from flies, and therefore bring them into boxes for the day-time, providing them with a feed of corn and some hay, and turning them out into a meadow at night to enjoy the cool air, and receive the benefit of the dew on their feet of a morning. Other owners simply reverse the shoes and treat their horses as described in the chapter on Training the Trotter; whilst some keep them more or less in work all the summer with a view to retaining the desired hardness of condition, and thereby dispensing with the severe course of training which has to be resorted to in the month of August, in order that the animals may be quite fit to go in September. Of all these courses that which ensures the hunter being out at grass of a night and in a cool, shady box during the day is the one which commends itself most strongly as the best to pursue, but each case must be governed by its own peculiar circumstances; and it is not every hunting man who is so fortunately circumstanced as to be in a position to treat his horses exactly as he would desire.
 
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