during phase 1 and 3 when weaned pigs fed either CON or PKE (Table 2). However, feeding PKE to weaned pigs tended (p = 0.06) to increase average daily gain (ADG), increased (p<0.05) average daily feed intake (ADFI), and decreased (p<0.05) gain-to-feed ratio (G:F) during phase 2 compared with CON. During overall experimental period, feeding PKE to weaned pigs also tended (p = 0.05) to increase ADG and increased (p<0.05) ADFI, but did not affect G:F. One of the most important points in the management program of weaning pigs is the fast adaptation of solid feed of nursery diets from liquid feed of sow milk as well as the fast increase amount of feed intake after weaning because it can directly influence their growth performance and health (Lalles et al., 2007). In addition, previous studies showed palm kernel co-products in finishing pig diets reduced growth performance (Kim et al., 2001; Ao et al., 2011). The data from present experiment cannot be directly compared with the data from previous studies described above because the data from present experiment is for weaned pigs rather than finishing pigs. However, the present experiment did not show any adverse effects on ADFI and ADG when weaned pigs fed PKE during overall experimental period.There were no differences on apparent total tract digestibility of dry matter, nitrogen, and energy when weaned pigs fed either CON or PKE (Table 3). Previous
studies reported that the increased fiber contents in swine
diets contribute to the decrease nutrient digestibility (Noblet
and Le Goff, 2001) and that palm kernel co-products in
growing or finishing pig diets reduced nutrient digestibility
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