The effect of active plant substances supplementation on fattening and slaughter performance and blood serum biochemical parameters in pigs

The study was carried out on 70 pigs divided into two groups: control and experimental (APS), the latter receiving an addition of active plant substances: cinna- maldehyde, carvacrol and capsaicin in the amount of 80 mg per 1 kg feed. During the experiment, fattening and slaughter performance and blood serum biochemical indi- ces, including total antioxidant status (TAS), were evaluated. The application of active plant substances during the fattening period did not have any effect on the improve- ment of fattening performance and carcass slaughter value. However, a statistically significant effect of this additive on lipid metabolism was observed, which is indica- ted by a decrease in the concentration of LDL fraction (P 0.05) and an increase in that of HDL fraction (P 0.01). Capsaicin, cinnamaldehyde and carvacrol also in- duced an increase in the protein concentration (P 0.01) and total antioxidant status (P 0.05) in the blood serum of fatteners.