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Table 2 Effects of nitrate on relative abundance of methanogen order of rumen

From: Nitrate decreases ruminal methane production with slight changes to ruminal methanogen composition of nitrate-adapted steers

Items Treatments SEM P-value Contrast
0NR 1NR 2NR P L P Q
E2 56.15 54.15 58.34 2.62 0.51 0.55 0.32
Methanobacteriales 38.00 35.68 34.62 2.12 0.42 0.20 0.80
Methanomicrobiales 0.47a 0.25b 0.27b 0.06 < 0.05 0.05 0.13
Methanosarcinales 0.06b 0.12b 0.24a 0.03 0.01 < 0.01 0.40
  1. 0NR control, 1NR 1% nitrate, 2NR 2% nitrate, PL is liner tendency, PQ is quadratic tendency