Skip to main content

Table 4 Effect of nZnO levels on cumulative gas volume and gas concentrations (n = 4 observations/treatment)

From: In vitro evaluation of nano zinc oxide (nZnO) on mitigation of gaseous emissions

Effects Alfalfa Maize silage Control 100 μg g− 1 200 μg g− 1 500 μg g− 1 1000 μg g− 1 SEMa P value
Feed nZnO NZnO
aFeed
Total Gas (mL) 41.09x 72.77y 58.17a 55.88a 55.88a 57.99a 58.17a 5.71 <.0001 0.875 0.542
CH4 (%) 10.69x 9.47y 12.68a 11.52ab 10.18bc 9.26c 6.74d 1.44 0.0114 <.0001 0.479
CO2 (%) 48.78x 45.55y 56.21a 53.46ab 50.06b 43.93c 32.16d 4.51 0.0314 <.0001 0.948
H2S (ppm) 3420x 1314y 3150a 2856a 2431b 1936c 1460d 298 <.0001 <.0001 <.0001
  1. aData are presented as least square means per treatment ± SEM
  2. Means followed by the letters (x/y/a/b/c/d) in each row are not significantly different at P ≤ 0.05