INFLUENCE OF ADDITION OF POLYENZYME PREPARATIONS INTO FEED MIXTURES ON FATTENING AND SLAUGHTERING PROPERTIES OF LAMBS

Different biostimulating substances are often used in lamb meat produc tion as well as in other types of livestock production. The ain of thi s paper was to investigate effect of polyenzyme preparations Polizym(R ) and Polizym-BX added into feed mixtures at an amount of 0.1% of the total raw material composition of mixtures on fattening and slaughteri ng lamb quality. Experimental lamb fattening was conducted.with two co ntrol (I and III) and two experimental (II and IV) groups. First (I) a nd second (II) group of lambs were given feed mixture of the same comp osition whereas the second one was given feed mixture with added Poliz ym(R) preparation (alpha-amylase, beta-glycanase, n-protease, cellulas e, and beta-glycosidase). Third (III) and fourth (IV) groups of lambs were given feed mixture 2 but the fourth group was given mixture with addition of preparation Polizym-BX (alpha-amylase, beta-glycanase, n-p rotease, and xylanase) with addition of quality meadow hay. Significan t differences in fattening and in most slaughtering properties of lamb s were determined between experimental (II and IV) and control (I and III) groups of lambs. Average daily gains with II and IV experimental group fed by addition of polyenzyme preparations were statistically ve ry significant (P < 0.01) higher by 4.97, i.e. 8.83% relative ta lambs .of the control,groups (I and III). Feed mixture conversion was better and meadow hay conversion, consumption of feed mixtures and meadow ha y increased with experimental groups of lambs (II and IV). Lambs of th e experimental groups (II and IV) significantly differed concerning mo st of slaughtering properties relative to the lambs of the control gro ups (I and III). Application of polyenzyme preparations PolizymR and P olizym-BX added into feed mixtures adapted to composition of feed mixt ures and lambs age can be recommended on the basis of the results of i nvestigation.