Survival of Mycoplasma agalactiae and Mycoplasma mycoides subspecies capri in heat treated goat colostrum

Abstract

The viability of Mycoplasma agalactiae and Mycoplasma mycoides subsp. capri (Mmc) was assessed in goat colostrum treated at different temperatures. Samples of colostrum were inoculated with reference strains of M. agalactiae (PG2) and Mmc (PG3) and heated at 56°C or 60°C for 0, 30, 60, 90 or 120 min. Viable colonies of M. agalactiae were recovered after all treatments and there was a significant reduction in the concentration of viable M. agalactiae after 30 min at 56°C and 60°C. No viable colonies of Mmc were observed after 60 min at 60°C.