MATERIAL AND METHODS Diets
The basal experimental diet was based on maize- soybean meal. The basal diet was supplemented with a commercial 6-phytase (Novo CT: coated thermostable granulate, from Novo Nordisk A/S, Denmark) at 500 FTU per kg of feed before pel- leting. The diets were pelleted at 65, 75, or 85°C except the basal mash diet as the control. The basal experimental diet is described in Table 1.
Feeds were pelleted with a 150 KWh Robinson pellet mill using typical commercial pelleting: mixed mash travelled through a 150 cm auger conditioner