Table 3.

Effects of ByPro¹ (tannic acid) dose (g/steer daily) in steam-flaked corn–based diets on beef cattle growth performance

	ByPro dose				P-value3
Item	Control	30 g	60 g	SEM2	Linear	Quadratic
Average days on feed	154	154	154	–	–	–
Initial BW, kg	349	349	349	7.51	0.38	0.33
FsBW,4 kg	598	599	601	6.09	0.72	0.90
Adj.FsBW,5 kg	598	602	599	5.91	0.87	0.53
DMI, kg/d
d 0 to 35	8.99	9.24	9.14	0.08	0.14	0.05
d 0 to 70	9.57	9.82	9.82	0.15	0.2	0.47
d 0 to 105	9.71	9.99	10.09	0.18	0.07	0.63
d 0 to 140	9.82	9.99	10.02	0.15	0.38	0.73
d 0 to end	9.90	10.16	10.27	0.16	0.06	0.65
ADG, kg
d 0 to 35	2.07	2.14	2.13	0.05	0.44	0.33
d 0 to 70	1.82	1.90	1.90	0.05	0.16	0.53
d 0 to 105	1.87	1.90	1.94	0.04	0.17	0.89
d 0 to 140	1.84	1.86	1.87	0.03	0.52	0.96
d 0 to end	1.62	1.64	1.65	0.04	0.51	0.98
Adj. d 0 to end6	1.62	1.66	1.64	0.04	0.65	0.38
G:F
d 0 to 35	0.23	0.232	0.233	0.005	0.75	0.99
d 0 to 70	0.190	0.193	0.194	0.004	0.45	0.81
d 0 to 105	0.193	0.19	0.192	0.003	0.84	0.50
d 0 to 140	0.187	0.186	0.187	0.003	0.87	0.76
d 0 to end	0.164	0.161	0.161	0.002	0.33	0.71
Adj. d 0 to end6	0.163	0.163	0.159	0.002	0.17	0.51

¹Silvateam USA, Ontario, CA.

² n = 12.

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

⁴FsBW = final shrunk BW. A 4% shrink was applied to final live BW.

⁵Adj.FsBW = carcass-adjusted FsBW, calculated from HCW divided by the average dressing percent across treatments (62.14%) and adjusted by a 4% shrink.

⁶Adj. = carcass-adjusted; carcass-adjusted ADG and G:F from Adj.FsBW, initial BW, and days on feed.