Table 4.

Apparent total tract nutrient digestibility of cows fed varying amounts of cinnamaldehyde

	Treatment1				Contrast2 (P =)
Item	Con	2	4	SEM	Lin	Quad
DM,%	74.4	76.3	73.7	1.01	0.63	0.09
OM,%	76.1	78.0	75.4	1.05	0.63	0.10
CP,%	69.7	71.5	68.4	1.22	0.45	0.12
NDF,%	61.5	64.5	60.3	1.82	0.64	0.14
NFC3,%	93.1	94.1	93.4	0.97	0.83	0.48
Fat, %	85.8	85.4	85.1	0.63	0.46	0.98

¹Treatment: Con = 0 cinnamaldehyde, 2 = 2 mg/kg BW cinnamaldehyde, and 4 = 4 mg/kg BW cinnamaldehyde.

²Contrast: Lin = linear, Quad = quadratic.

³NFC = nonfiber carbrohydrate.