Biochemical and mineral blood indices in fattening pigs fed mixtures containing yellow lupine (Lupinus luteus)

Thirty crossbred pigs [♀ (Landrace x Yorkshire) x ♂ Duroc] were fattened in a three-stage fattening period. Soybean extraction meal (Group K) or soybean extraction meal with seeds of yellow lupine in the amount of 7.5% (Group D1) or 15% (Group D2) were used as a source of protein in their diet. The animals were slaughtered after reaching a body weight of about 117.5 kg. Blood samples were collected from all pigs at this time. Activity of ALP, AST and ALT and the level of TP, GLU, CHOL, HDL, TG, CREA, UREA, Ca, P, Mg, and Fe were determined in order to assess the impact of the dietary factor on the homeostasis and health of the animals. The values of all biochemical and mineral blood indicators were lower in the experimental groups (D1 and D2) than in the control. Most of these differences were statistically significant (P≤0.05 and P≤0.01). The values of the characteristics were within the reference limits for the species. The dietary factor had no negative effect on homeostasis in the animals.