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Table 2 Nutritional and Physical features [Particle size (PS) distribution (%) and physically effective NDF (peNDF)] of three experimental diets (n = 5)

From: Effects of dietary physical or nutritional factors on morphology of rumen papillae and transcriptome changes in lactating dairy cows based on three different forage-based diets

  Dieta P-value
Itemb AH CS RS SEM AH vs. CS AH vs. RS CS vs. RS
Nutritional factor
 CP 16.7 16.2 16.0 0.25 0.02 0.01 0.47
 Net energy for lactation, Mcal/kg 1.57 1.45 1.43     
Physical factor
 PS, >19.0mm 32.2 16.9 40.4 1.84 <0.01 0.03 <0.01
 PS, 8.0 to 19.0 mm 16.0 30.6 10.4 1.89 <0.01 0.07 <0.01
 PS, 1.18 to 8.0 mm 35.8 36.1 33.0 2.08 0.94 0.46 0.18
 PS, <1.18 mm 16.1 16.4 16.2 1.34 0.81 0.96 0.91
 peNDF19.0 10.0 6.1 14.9 0.67 <0.01 <0.01 <0.01
 peNDF8.0 23.4 25.0 33.7 1.71 0.34 <0.01 <0.01
  1. aAH = Total mixed ration (TMR) containing alfalfa hay as the main forage; CS = TMR containing corn stover as the main forage; RS = TMR containing rice straw as the main forage
  2. bCP = crude protein; NEL = Calculated values based on Chinese recommondations; NDF = neutral detergent fiber; peNDF8.0 measured as the NDF content of diet multiplied by proportion of particles > 8.0 mm; peNDF19.0 measured as the NDF content of diet multiplied by proportion of particles > 19.0 mm; Particle size distribution determined by the Penn State Particle Separator sieving technique