Table 2 Gain in body weight (average per group) in relation to the initial weight of each calf at its time point of purchase. Animal groups included non-infected (control) and N. caninum-infected calves without and with ponazuril therapy (1T = medication for one day; 6T = medication for 6 consecutive days). Δ1 refers to the gain of body weight in the period between purchase and initiation of experiments (day of infection with or without treatment) and Δ2 to the time period between start and end of experiments.