Table 5.

Effects of ByPro¹ (tannic acid) dose (g/steer daily) in steam-flaked corn–based finishing diets on beef cattle apparent total tract digestibility

	ByPro dose				P-value3
Item	Control	30 g	60 g	SEM2	Linear	Quadratic
Intake,4 kg/d
DM	9.46	9.78	10.01	0.289	0.07	0.86
OM	8.83	9.16	9.33	0.269	0.08	0.73
Starch	4.42	4.62	4.57	0.132	0.29	0.27
CP	1.25	1.24	1.31	0.038	0.30	0.20
NDF	2.09	2.16	2.18	0.062	0.17	0.60
Fecal output, kg/d
DM	2.46	2.36	2.65	0.158	0.25	0.17
OM	2.29	2.14	2.42	0.161	0.41	0.13
Starch	0.08	0.10	0.13	0.020	0.03	0.55
CP	0.38	0.37	0.44	0.026	0.04	0.09
NDF	1.28	1.20	1.24	0.112	0.71	0.54
Apparent total tract digestibility, %
DM	73.9	75.7	73.4	1.58	0.75	0.14
OM	74.0	76.5	73.5	1.71	0.94	0.09
Starch	98.2	98.0	97.2	0.42	0.03	0.54
CP	69.9	70.1	66.4	2.02	0.09	0.26
NDF	38.5	44.3	43.0	4.87	0.36	0.41
Diet composition, %, DM basis
DM, % as-is basis	78.2	78.3	78.4	–	–	–
OM	93.4	93.7	93.2	–	–	–
Starch	46.7	47.3	45.6	–	–	–
CP	13.4	12.7	13.2	–	–	–
NDF	23.6	23.6	23.3	–		–

¹Silvateam USA, Ontario, CA.

² n = 12.

³ P-values for the linear and quadratic effects of ByPro dose.

⁴Intake during the digestibility measurement period of the experiment (d 90 through 96 of the feeding period).