Figure 3From: Effect of exogenous circulating anti-bPL antibodies on bovine placental lactogen measurements in foetal samplesPlasmatic profiles of bPL concentrations and rabbit anti-bPL titers in peripheral circulation of two bovine foetuses. Concentrations of bPL in fetal plasma (ng/mL) are represented by black dots. Anti-bPL titers measured as B/T (bound activity (B) regarding total tracer (T) added) are represented by white circles. Plasma samples from cannulated foetuses (Foetus 5 and 6) were obtained during late pregnancy. Concentrations of bPL were measured by RIA with guinea pig anti-bPL antiserum as the primary antibody. Solid line arrows indicate day of infusion of a pool of rabbit anti-bPL IgG into the fetal catheter. Broken line arrow indicates the day of calving.Back to article page