Z. Antunovic et al., INFLUENCE OF ADDITION OF POLYENZYME PREPARATIONS INTO FEED MIXTURES ON FATTENING AND SLAUGHTERING PROPERTIES OF LAMBS, Czech Journal of Animal Science, 43(7), 1998, pp. 319-326
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.