Figure 5
Plasma mineral concentrations and daily faecal mineral output of pigs fed experimental diets. Plasma samples were analysed before (basal) and after (final) feeding diets containing 23% casein or 23% lupin protein isolate for 4 weeks. Plasma concentrations of phosphorus and calcium (A), magnesium (C) and zinc (D) and daily faecal output of phosphorus and calcium (B), magnesium and zinc (E) were determined. Faeces were collected quantitatively during the last 5 days of the experiment. Values are means (plasma, n = 12; faecal output, n = 6), with standard deviations. *Significantly different between the two groups at one time point (P < 0.05, Student’s t-test). #Significantly different between basal and final means within one group (P < 0.05, paired t-test).