Lower friction during pelleting of AP with higher moisture contents resulted in lower pressures in the die openings. This caused significant reduction of pellet hardness with increasing the moisture content of AP (Table 3). Thus, positive effect of increased moisture content of AP was the reduction in energy consumption of the pellet press, which provides energy saving in the pelleting process. Additionally, softer pellets, obtained by pelleting AP with higher moisture content, would be chewed by ruminants more easily. Also, softer pellets would be easier to grind in the process of production of poultry or pig feed.