SURVEY OF SELECTED DESIGN AND VENTILATION CHARACTERISTICS OF RACEHORSE STABLES IN THE PRETORIA, WITWATERSRAND, VEREENIGING AREA OF SOUTH-AFRICA

Stables housing more than 20 horses in training were surveyed in the P retoria, Witwatersrand, Vereeniging area of South Africa. Most racehor ses, were kept in loose boxes, bedded on straw or sawdust and remained indoors while the stables were cleaned. The average floor area was 13 m2 and airspace was 55 m3 per animal. The average predicted minimum a ir change rate by natural convection in calm winds was 7,0 air changes per hour, which was reduced to 2,2 when the doors and shutters were c losed. The survey showed that many of the stables had been built witho ut due consideration to factors that might have adverse effects on the occupants.