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. 2022 Jan 28;6(1):txac013. doi: 10.1093/tas/txac013

Table 6.

Effects of Enogen Feed Corn silage and corn on performance (Exp. 3)

Item Corn silage hybrid1 SEM P-value
CON-S EFC-S
Corn grain source2
CON-G EFC-G CON-G EFC-G Grain Silage Grain × Silage
No. of pens 8 8 8 8 — — — —
No. of animals 88 87 87 88 — — — —
Body weight, kg
 Day 0 301 299 297 297 — — — —
 Day 14 334 336 335 336 3.37 0.25 0.71 0.97
 Day 28 345 343 343 341 5.51 0.47 0.47 0.80
 Day 42 375 372 374 374 4.10 0.61 0.93 0.38
 Day 56 395 393 395 396 4.37 0.81 0.62 0.35
 Day 70 415 413 415 416 5.73 0.90 0.50 0.62
 Day 77 420 423 426 426 5.84 0.66 0.09 0.56
 Day 91 429 427 433 433 5.94 0.77 0.10 0.85
ADG, kg/d
 Days 0–14 2.35 2.63 2.69 2.80 0.21 0.06 0.02 0.39
 Days 0–28 1.55 1.58 1.66 1.56 0.19 0.70 0.67 0.47
 Days 0–42 1.76 1.75 1.83 1.83 0.09 0.96 0.07 0.76
 Days 0–56 1.68 1.68 1.74 1.76 0.08 0.84 0.06 0.70
 Days 0–70 1.62 1.63 1.68 1.69 0.08 0.83 0.08 0.95
 Days 0–91 1.40 1.41 1.49 1.48 0.07 0.97 0.01 0.82
Dry matter intake, kg/d
 Days 0–14 7.68 8.01 7.69 7.90 0.13 0.05 0.69 0.66
 Days 0–28 8.13 8.40 8.19 8.42 0.14 0.09 0.76 0.92
 Days 0–42 8.48 8.77 8.81 8.97 0.14 0.12 0.07 0.63
 Days 0–56 8.86 9.05 9.18 9.35 0.14 0.21 0.03 0.95
 Days 0–70 9.14 9.23 9.38 9.52 0.14 0.42 0.08 0.84
 Days 0–77 9.20 9.43 9.48 9.64 0.14 0.18 0.09 0.78
 Days 0–91 9.17 9.38 9.44 9.56 0.12 0.19 0.08 0.71
Gain:feed, kg/kg
 Days 0–14 0.306 0.328 0.350 0.354 0.011 0.24 <0.01 0.45
 Days 0–28 0.192 0.189 0.203 0.185 0.010 0.33 0.74 0.48
 Days 0–42 0.192 0.184 0.181 0.182 0.004 0.19 0.64 0.45
 Days 0–56 0.191 0.186 0.190 0.189 0.004 0.48 0.84 0.68
 Days 0–70 0.178 0.176 0.180 0.178 0.004 0.67 0.60 0.96
 Days 0–77 0.168 0.171 0.177 0.174 0.004 0.88 0.16 0.47
 Days 0–91 0.155 0.152 0.160 0.157 0.002 0.43 0.14 0.94
NEm3, Mcal/kg 1.61 1.58 1.62 1.60 0.02 0.31 0.42 0.89
NEg4, Mcal/kg 1.00 0.97 1.01 0.99 0.01 0.30 0.39 0.87
Fecal composition5
 Dry matter,% 18.6 19.3 18.6 19.2 0.68 0.38 0.99 0.94
 Starch, % of dry matter 20.4 21.7 19.6 23.5 2.00 0.20 0.82 0.52

CON-S, control corn silage (Mycogen); EFC-S, Enogen Feed Corn silage.

CON-G, control corn grain (yellow #2 corn); EFC-G, Enogen Feed Corn grain.

Net energy for maintenance, calculated as described by Galyean (2019) based on NRC (1996) requirements.

Net energy for gain, calculated as described by Galyean (2019) based on NRC (1996) requirements.

Fecal composition was measured on samples collected on day 49 of the 91-d experiment.