INFLUENCE OF POLIZYMESᴿ ADDED IN FEED ON THE BROILER PERFORMANCE*

Svrha istraživanja bila je da se ustanovi utjecaj dodavanja polienzimskih preparata (1. skupini kontrola,2. skupina Polizymᴿ, 3. skupina Potizymᴿ-G i 4. skupina Polizymᴿ-BX) na tovna i klaonička svojstva pilića. lstraživanje je započeto s 200 jednodnevnih seksiranih pilića muškog spola provenijencije Avian K-24 a trajalo je do dobi pilića 42 dana. Prosječna živa masa kontrolne skupine pilića iznosila je 2075 g, a prosječne mase pokusnih skupina pilića bile su 2117 g, 2144 g i 2160 g. Konverzija hrane istim redoslijedom je iznosila: 2050 g : 1963 g, 1990 i 1971 g. lzračun proizvodnog broja, prosječnih stopa i faza rasta u tovu potvrđuje učinkovitost dodanih polienzimskih preparata u smjesu. Najbolji učinci postignuti su dodavanjem Polizymᴿ preparata u smjese za tovne piliće. lstraživanjem kakvoće trupova i fizikalno-kemijskih svojstava mišića prsa i nadbataka ustanovljeno je da su dodani polienzimski preparati u smjese utjecali na tvorbu mesa zadovoljavajuće kakvoće.The purpose of the research was to establish the effect of polyenzymatic preparations /1st group controls, 2nd group Polizymᴿ, 3rd group Polizymᴿ -G, 4th group Polizymᴿ-BX added into the feed on the fattening and slaughtery properties of chickens. The research was started on 200 one day old sexed male chickens of the Avian K-24 provenance and continued until the 42nd day of their age. The average live mass of the control group was 2075 g and the average mass of the experimental groups were 2117,2144 and 2160g. The feed conversion was 2050 g, 1963 g and 1971 g, in that order. The calculations of the production number, average rates and slages of growth in the process of fattening confirm the efficacy of additional polienzymatic preparations in the feed. The best results were obtained by adding Polizymᴿ into the feed. By studying the quality of carcasses and physical and chemical properties of brest muscles and upper legs it was found that the polienzymatic preparations added into the feed produced meat of satisfactory quality