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Treatments1
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Main effects
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DRC
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SFC
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Vitreousness2
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Processing
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Vitreousness
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Vitreousness
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|
| Item |
V55 |
V61 |
V63 |
V65 |
SEM3 |
DRC |
SFC |
SEM3 |
V55 |
V61 |
V63 |
V65 |
SEM3 |
V55 |
V61 |
V63 |
V65 |
SEM3 |
|
| Intake, g/d |
| DM |
5,015 |
5,011 |
5,013 |
5,002 |
|
5,036 |
4,984 |
|
5,038 |
5,034 |
5,045 |
5,027 |
|
4,991 |
4,987 |
4,980 |
4,977 |
|
| OM |
4,766 |
4,773 |
4,755 |
4,752 |
|
4,786 |
4,737 |
|
4,793 |
4,777 |
4,793 |
4,782 |
|
4,739 |
4,770 |
4,716 |
4,723 |
|
| ADF |
249 |
237 |
257 |
254 |
|
263 |
236 |
|
254 |
259 |
273 |
265 |
|
244 |
216 |
241 |
244 |
|
| Starch |
2,584 |
2,647 |
2,549 |
2,631 |
|
2,467 |
2,738 |
|
2,482 |
2,483 |
2,523 |
2,381 |
|
2,686 |
2,811 |
2,574 |
2,881 |
|
| N |
78.3 |
82.0 |
80.0 |
82.2 |
|
80.5 |
80.8 |
|
77.7 |
80.5 |
81.0 |
82.7 |
|
79.0 |
83.5 |
79.0 |
81.8 |
|
| Flow to duodenum, g/d |
| OM |
2,605 |
2,361 |
2,480 |
2,452 |
88.96 |
2,562 |
2,386 |
112.4 |
2,706 |
2,493 |
2,502 |
2,549 |
136.4 |
2,505 |
2,229 |
2,457 |
2,354 |
99.3 |
| ADF4,5,6,7 |
180.8 |
151.3 |
165.9 |
156.6 |
9.43 |
149.2 |
178.1 |
12.34 |
152.6 |
145.7 |
153.7 |
144.9 |
9.61 |
209.1 |
156.9 |
178.1 |
168.2 |
12.67 |
| Starch8 |
597.4 |
524.9 |
579.6 |
589.0 |
43.83 |
699.5 |
445.9 |
31.14 |
751.8 |
675.6 |
670.7 |
700.1 |
70.14 |
443.1 |
374.1 |
488.4 |
477.9 |
59.79 |
| Nonammonia N |
97.7 |
94.9 |
95.4 |
94.2 |
2.04 |
90.1 |
100.9 |
5.35 |
90.3 |
89.5 |
89.9 |
90.9 |
2.05 |
105.1 |
100.3 |
100.9 |
97.4 |
1.88 |
| Microbial N5,9 |
68.6 |
68.7 |
70.2 |
69.5 |
1.78 |
65.2 |
73.3 |
3.81 |
61.8 |
65.7 |
67.8 |
65.4 |
1.01 |
75.4 |
71.7 |
72.5 |
73.6 |
2.72 |
| Feed N10 |
29.1 |
26.2 |
25.2 |
24.7 |
1.83 |
25.0 |
27.6 |
4.14 |
28.5 |
23.8 |
22.1 |
25.5 |
2.25 |
29.8 |
28.7 |
28.4 |
23.8 |
1.60 |
| Ruminal digestion, % |
| OM |
59.7 |
64.9 |
63.1 |
62.5 |
1.80 |
60.1 |
65.0 |
2.38 |
56.4 |
61.5 |
61.9 |
60.3 |
2.83 |
63.0 |
68.2 |
63.1 |
65.8 |
1.74 |
| ADF10,11 |
26.9 |
35.3 |
34.7 |
38.3 |
3.74 |
43.2 |
24.4 |
5.40 |
40.0 |
43.7 |
43.7 |
45.3 |
3.70 |
13.7 |
27.0 |
25.7 |
31.3 |
5.69 |
| Starch8 |
76.6 |
79.7 |
77.1 |
77.1 |
1.76 |
71.6 |
83.6 |
1.33 |
69.7 |
72.8 |
73.4 |
70.6 |
2.89 |
83.5 |
86.6 |
80.8 |
83.5 |
2.26 |
| Feed N10 |
62.9 |
68.1 |
68.4 |
69.8 |
2.29 |
68.9 |
65.7 |
5.09 |
63.4 |
70.4 |
72.7 |
69.1 |
2.77 |
62.5 |
65.8 |
64.0 |
70.6 |
2.01 |
| Microbial efficiency12 |
24.2 |
22.6 |
23.8 |
23.3 |
1.10 |
22.9 |
24.0 |
0.93 |
23.2 |
22.9 |
22.9 |
22.7 |
1.35 |
25.2 |
22.2 |
24.6 |
23.9 |
1.41 |
| Protein efficiency10,13 |
1.25 |
1.16 |
1.19 |
1.14 |
0.03 |
1.12 |
1.25 |
0.05 |
1.16 |
1.11 |
1.11 |
1.10 |
0.03 |
1.33 |
1.20 |
1.28 |
1.19 |
0.03 |
| Fecal excretion, g/d |
| OM11,14,15 |
1,061 |
995 |
1,061 |
1,081 |
44.79 |
1248 |
850.9 |
93.43 |
1,208 |
1,238 |
1,207 |
1,339 |
71.73 |
915 |
752 |
914 |
823 |
37.54 |
| ADF8,14,15 |
145.8 |
129.3 |
144.5 |
133.4 |
5.09 |
129.0 |
147.5 |
3.46 |
129.2 |
128.0 |
133.9 |
125.0 |
7.34 |
162.3 |
130.7 |
155.0 |
141.9 |
7.36 |
| Starch8 |
162.6 |
189.1 |
172.1 |
222.6 |
23.02 |
354.5 |
18.7 |
51.07 |
309.4 |
355.3 |
326.9 |
426.5 |
38.73 |
15.9 |
22.9 |
17.2 |
18.8 |
3.99 |
| N11 |
27.7 |
27.1 |
30.7 |
28.6 |
1.32 |
30.6 |
26.4 |
1.19 |
30.7 |
30.2 |
30.5 |
31.0 |
0.72 |
24.8 |
24.0 |
30.8 |
26.2 |
2.73 |
| Postruminal digestion, % |
| OM5,17,18 |
59.2 |
57.6 |
57.2 |
56.0 |
2.13 |
51.0 |
64.1 |
3.40 |
55.2 |
49.2 |
51.8 |
47.7 |
2.00 |
63.3 |
66.0 |
62.6 |
64.3 |
1.97 |
| ADF |
16.5 |
12.6 |
10.8 |
11.8 |
4.73 |
11.4 |
14.4 |
5.75 |
14.0 |
10.4 |
9.8 |
11.5 |
4.78 |
19.0 |
14.8 |
11.8 |
12.0 |
6.02 |
| Starch5,8,17,18 |
77.2 |
70.5 |
74.0 |
68.4 |
3.40 |
49.3 |
95.8 |
6.13 |
58.1 |
46.8 |
51.5 |
40.8 |
4.00 |
96.2 |
94.2 |
96.6 |
96.0 |
0.97 |
| N5,10,11 |
72.2 |
71.9 |
68.9 |
70.2 |
1.32 |
67.2 |
74.4 |
1.98 |
67.3 |
67.2 |
67.3 |
66.9 |
0.818 |
77.1 |
76.6 |
70.6 |
73.4 |
2.47 |
| Total tract digestion, % |
| OM11,14,19 |
77.8 |
79.1 |
77.7 |
77.3 |
0.93 |
73.9 |
82.0 |
1.99 |
74.8 |
74.1 |
74.8 |
72.0 |
1.51 |
80.7 |
84.1 |
80.5 |
82.6 |
7.72 |
| ADF8 |
41.3 |
44.7 |
43.0 |
47.3 |
2.16 |
50.9 |
37.3 |
2.49 |
49.2 |
50.5 |
51.0 |
52.8 |
2.85 |
33.4 |
38.9 |
35.1 |
41.8 |
3.46 |
| Starch8,14,20 |
93.5 |
92.4 |
93.2 |
90.7 |
0.94 |
85.6 |
99.3 |
2.08 |
87.5 |
85.7 |
87.0 |
82.1 |
1.59 |
99.4 |
99.2 |
99.3 |
99.3 |
0.15 |
| N11,16 |
64.6 |
66.8 |
61.7 |
65.2 |
1.62 |
62.0 |
67.2 |
1.37 |
60.5 |
62.5 |
62.3 |
62.5 |
0.90 |
68.6 |
71.2 |
61.1 |
67.9 |
3.34 |
|
|
| 1DRC = Dry-rolled corn-based diet, SFC = steam-flaked corn-based diet. |
| 2Vitreousness = proportion of the horny endosperm in the degermed grain, where V55 = 55% vitreous endosperm. |
| 3For vitreousnous main effect, n = 8, with 15 degrees of freedom for error. For processing main effects, n = 16, with 6 degrees of freedom for error. For vitreousness within processing effects, n = 4, with 6 degrees of freedom for error. |
| 4Quadratic effect, vitreousness, P < 0.10. |
| 5Vitreousness x processing interaction, P < 0.10. |
| 6Linear effect, vitreousness in steam-flaked corn, P < 0.10. |
| 7Quadratic effect, vitreousness in steam-flaked corn, P < 0.10. |
| 8Corn processing effect, P < 0.01. |
| 9Linear effect, vitreousness in dry rolled corn, P < 0.01. |
| 10 Linear effect, vitreousness, P < 0.10. |
| 11 Corn processing effect, P < 0.05. |
| 12 Microbial N g/kg of OM fermented. |
| 13 Nonammonia N flow to the small intestinal/N intake. |
| 14 Vitreousness x processing interaction, P < 0.05. |
| 15 Quadratic effect, vitreousness in steam-flaked corn, P < 0.05. |
| 16 Quadratic effect vitreousness, P < 0.05. |
| 17 Linear effect, vitreousness in dry-rolled corn, P < 0.10. |
| 18 Quadratic effect, vitreousness in dry-rolled corn, P < 0.10. |
| 19 Quadratic effect, vitreousness in steam-flaked corn, P < 0.01. |
| 20 Cubic effect, vitreousness in dry-rolled corn, P < 0.10. |
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