Effect of aroma supplementation in the diets on the level of thyroxine and triiodthyronine in the blood plasma of the fattened pigs

Dimiter Chotinsky, Maya Ignatova

Abstract: A feeding experiment was conducted to evaluate the effect of aroma supplementation in the diets on the level of thyiroxine and triiodthyronine in the blood plasma of pigs. Forty pigs were weithed and assigned randomly divided in two dietary treatments: 1. a basal diet (contol group). The pigs in control group were fed diet without additives; 2. In experimental group the diets were supplemented with 600 g/tonne aroma substances as follow: Vanilia-butter in starter diet, Nectar in grower diet and Apple in finisher diet. The quantity of thyroxine in the blood plasma did not change significantly in the supplementatoin of 0.06% Vanillia-butter, Nectar and Apple in the diets of pigs. The level of triiodthyronine in the blood plasma decreased significantly with the supplementation of 0.06% Vanillia-buter, Nectar and Apple in the diets of pigs.

Keywords: aroma (Vanilia-butter, Nectar, Apple); pigs; thyroid hormones (thyroxine, triiodthyronine)

Date published: 2020-06-05