Table 3.

Effect of different doses of chestnut wood tannins (T−: 0 mg/kg, T+: 500 mg/kg and T++: 2,000 mg/kg) added to a wheat-palm oil-rapeseed based diet or corn soy based diet on litter dry matter content (DM, %) at d 29 and 42 of age. Broilers were housed at a maximum density of 14 birds/m² (n = 12).

	Corn			Wheat			P1			SEM
	T−	T+	T++	T−	T+	T++	D	T	D*T
DM
D 29	65.93ab	62.54b	65.96a	70.02ab	70.00b	71.71a	<0.001	0.022	0.178	0.54
D 42	56.51ab	56.01b	58.94a	63.48ab	62.46b	66.40a	<0.001	0.009	0.915	0.97

^abValues for a specific parameter within a diet with no letters or sharing a letter are not significantly different (P > 0.05).

¹D, Diet; T, tannin treatment.