Research Article

Assessment of Fatty Liver Syndrome and Its Predisposing Factors in a Dairy Herd from Venezuela

Table 2

Occurrence of fatty liver and subclinical ketosis during the first five weeks postpartum.

Metabolic disorders Frequency, %

Liver TAG1, % fresh basis
 ≤5827.6
 52172.4
Subclinical ketosis2
 Positives2573.5
 First week1441.2
 Third week1132.3
 Negatives926.5
 Total34100.0

Cows sampled by liver biopsy at 1st or 5th week postpartum. : number of cows. Frequency = (affected cows/total number of sampled cows) × 100. 2Subclinical ketosis: positives: color scale that corresponded to milk β-hydroxybutyrate concentrations ≥200 μmol/L. Negatives: color scale that corresponded to milk β-hydroxybutyrate concentrations ≤100 μmol/L.