Figure 4

Rennet clotting time and curd firmness in milk of glands infected with pathogenic Escherichia coli. Mean and SE of Rennet clotting time (RCT; red slant lines fill) and Curd firmness (CF; blue mesh fill) measured in the infected glands of 10 cows challenged with different mammary pathogenic strains of E. coli. *significantly different from time 0 for CF and RCT (P < 0.05).