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Table 3 Rumen fermentation characteristics in dairy cows fed with three experimental forage-based diets (n = 6)

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

 

Dietary treatmentsa

P-value

Item

AH

CS

RS

SEM

AH vs. CS

AH vs. RS

CS vs. RS

pH

6.39

6.41

6.39

0.050

0.89

0.98

0.85

Ammonia-N, mg/dL

14.5

15.8

20.3

1.07

0.37

0.01

0.04

Total VFA, mM

93.5

81.0

83.1

2.83

0.04

0.02

0.63

Acetate, mM

66.2

57.1

59.8

1.99

0.03

0.02

0.20

Propionate, mM

19.4

17.2

17.1

0.75

0.14

0.07

0.95

Butyrate, mM

7.90

8.64

6.18

0.483

0.13

0.09

0.02

Molar proportion, %

 Acetate

71.1

70.3

72.2

0.89

0.03

0.40

0.02

 Propionate

20.7

21.4

20.5

0.55

0.51

0.80

0.36

 Butyrate

8.29

10.9

7.34

0.556

<0.01

0.27

0.02

Acetate: Propionate

3.47

3.24

3.60

0.108

0.23

0.45

0.07

  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
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BMC Genomics

ISSN: 1471-2164

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