Table 2.

Effect of diet on apparent ileal digestibility of nutrients in piglets fed the experimental diets^a

Item	Gluconic acid (g/kg)
	0	9	18
Dry matter	0.613	0.617	0.659
Organic matter	0.637	0.642	0.681
Crude protein (Nx6.25)	0.686	0.674	0.723

^aContents of the last half meter of the small intestine were collected from piglets at d 21, and subsequently pooled per treatment, freeze dried and used for measuring digestibility by the indicator method (marker: 4 mol/L HCl insoluble ash)