Akademska digitalna zbirka SLovenije - logo
VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Effect of the housing system on the meat production of Turkey = Vpliv načina uhlevitve pur na prirejo mesa
    Herendy, Veronika ...
    The aim of our investigations was to study the ability of heavy type turkey genotypes developed for intensive systems using semi extensive (aviary) and extensive (free-range) systems and the effect ... of the different environment on the performance. The semi extensive conditions appeared to be well adapted to the technology of producing high performance heavy type turkey and it does not cause decrease in the production parameters. In the case of the carcass yield also disadvantageous changes are prognosticable. The live weight of the intensively and semi extensively reared groups did not differ significantly prior to slaughtering, but in the case of male turkey the outdoor keeping achieved a 40% lower bodyweight in a 4 weeks longer period than the males in the other two systems. In the case of females the difference was lower but the performance also showed a 20% decrease in the outdoor system. The carcass yield showed a decrease in both of sexes of the free-ranged turkeys but it was statistically significant (P<0.01) only in the case of females. The ratio of the breast fillet of the female turkeys in the free-range system was higher than in the other groups. The heart - as an important organ of the maintenance of the physiological functions - weight ratio was not affected by the rearing conditions but compared to the grill - ready body weight it was found to be incredibly low. Our results confirm the hypothesis that the heavy type hybrids are able to adapt to the extensive environment but a longer rearing period results only in a significantly lower final bodyweight. Regarding the carcass yield disadvantageous changes are predicted in the case of both sexes.
    Vir: Živinorejska proizvodnja v luči ekoloških, etoloških in etičnih norm = Animal production according to ecological, ethological and ethical norms (Str. 209-213)
    Vrsta gradiva - prispevek na konferenci
    Leto - 2004
    Jezik - angleški
    COBISS.SI-ID - 1638280

    Povezava(-e):

    Digitalna knjižnica Slovenije - dLib.si

Vnos na polico