INFLUENCE OF MULTIENZYME PREPARATIONS ON PRODUCTION RESULTS AND ON SELECTED BIOCHEMICAL INDICATORS IN THE BLOOD OF PIGS FROM 10 TO 24 KG BODY-MASS

Nutritional effects of two multienzyme preparations (PLIVA and Kemzyme ) on the production and selected biochemical parameters in the blood o f pigs weighing between 9.8 and 24 kg were studied during a period of 28 days. Yorkshire and Swedish Landrace crossbreds of 9.8 kg starting body mass were used. A total of 54 pigs were divided in three groups, a control (C) and two trial (T-1 and T-2) groups with 18 pigs (9 males and 9 females) in each. They were fed the same starter diet. The cent ral group received no enzyme supplement while the first group (T-1) re ceived the multienzyme preparation made by PLIVA and the second group (T-2) was given a multienzyme preparation, Kemzyme (Kemin, Iowa, USA). Both diets (T-1 and T-2) contained 0.1% of the multienzyme preparatio ns. Rigs were kept in boxes and offered water and feed ad libitum. Nut ritional parameters were measured at the end of the trial (after 28 da ys), while blood plasma biochemical parameters were ascertained on day s 1, 14 and 28. Rigs in the control group (C) and in both trial groups (T-1 and T-2) reached comparable average daily gains and average fini shing body mass within the 28 days under study. The control group (C) consumed 10.9% more feed than the group T-1 (PLIVA multienzyme prepara tion), and 4.53% more feed than the group T-2 (Kemzyme) during the 28 trial days. Both experimental groups fed diets enriched with multienzy me additives PLIVA or Kemzyme, had better food conversion than the con trol (C) group. No adverse effects of multienzyme preparations by PLIV A or Kemzyme on health status of pigs was found as indicated by bioche mical analyses. Neither death nor sickness occurred during the trial.