Ration

Sampling time

Interaction#

Contrast¹

Contrast²

Model

Physico-chemical characteristics

Rumen pH

pH

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n.s

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n.s

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Ammonia nitrogen (mg/l)

N-NH₃

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n.s

n.s

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n.s

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Characteristics of rumen fermentation profile

Total VFA (mmol/l)

VFA

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n.s

n.s

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n.s

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Acetic acid (%VFA)

C2%

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Propionic acid (%VFA)

C3%

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Butyric acid (%VFA)

C4%

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n.s

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C2/C3 rate

C2/C3

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Methane (µmol/mmol VFA)

CH₄

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