The Scientific World Journal / 2014 / Article / Tab 1

Review Article

Ruminal Acidosis in Feedlot: From Aetiology to Prevention

Table 1

Main differences between the two different clinical forms of ruminal acidosis [5].

Ruminal acidosis
AcuteSubacute

Presence of clinical signsYesMaybe

MortalityYesNo

Ruminal changes
 (1) Rumen pHBelow 55.0–5.4
 (2) Lactic acidIncrease
(50–120 mM)
Normal
(0–5 Mm)
 (3) Volatile fatty acids (VFA)Decrease
(<100 mM)
Increase
(150–225 mM)
 (4) Gram negative bacteriaDecreaseNormal
 (5) Gram positive bacteriaIncreaseNormal
 (6) Streptococcus bovis IncreaseNormal
 (7) Lactobacillus spp.IncreaseNormal
 (8) Lactic acid producersIncreaseIncrease
 (9) Lactic acid consumersDecreaseIncrease
Blood parameters
 (1) Blood pHLowBorderline
 (2) BicarbonateLowBorderline
 (3) LactateIncreaseNormal

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