Figure 2

Composite milk concentrations of lactate dehydrogenase (LDH;A), somatic cell count (SCC; B), N- acetyl - β - D - glucosaminidase (NAGase; C) and alkaline phosphatase (ALP; D) at time points relative to intramammary challenge with Escherichia coli (h = 0) in 30 primiparous Holstein cows during early lactation. *Differences (P <0.05) when compared to h = 0.