FATTENING AND MEATINESS OF SOME TWO CROSSBREEDS IN PIGS
Đ. Senčić, Marcela Šperanda, Z. Antunović, T. Šperanda
[Poljoprivreda / Agriculture. 9(1):56-59, June 2003.]
Scientific review
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ABSTRACT Investigation of fattening and slaughter traits was conducted with crossbreeds between Swedish Landrace and Large White (SL x LW), Swedish Landrace and Pietrain (SL x P) as well as between Large White and Pietrain (LW x P). The pigs were fed in the same conditions. They were fed mixture containing 15.36% crude proteins and 13.22 MU/kg. Values of meat pH were determined by pH –meter Mettler Toledo, ability of meat water fixation according to Grau-Hamm (1952) whereas colour and meat marbling by an American NPCC method. No statistically significant differences were found (P>0.05) in terms of daily gain (640 g, 680 g and 6880 g) among the investigated pig genotypes. However, feed conversion differences were determined. The lowest feed consumption per gain kg was characterized by crossbreeds LW x P (2.04 kg) followed by crossbreeds SL x LW (3.22 kg) and crossbreeds SL x P (3.63). The highest meatiness of pork sides (55.15%) and their conformation were known by crossbreeds LW x P followed by (by the meatiness) crossbreeds SL x LW (54.71%) and crossbreeds SL x P (54.08%). Pig meat quality of the investigated genotypes was satisfactory. Crossbreeds with Pietrain (SL x P and LW x P) had slightly lower meat water fixation ability (9.70 cm 2 and 9. 80 cm2) compared to the crossbreeds LW x SL (8.51cm2). Crossbreeds with Pietrain were also characterized by lower meat colour intensity (2.50 and 2.33) and meat marbling (1.38 and 1.50) compared to colour intensity and meat marbling in crossbreeds LW x SL (2.75 and 2.50). |
Keywords: pigs, crossbreeds, fattening traits, slaughtering traits
TOVNOST I MESNATOST SVINJA NEKIH DVOPASMINSKIH KRIŽANACA
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SAŽETAK Istraživanje tovnih i klaoničkih svojstava provedeno je na križancima između švedskog landrasa i velikog jorkšira (ŠL x VJ), švedskog landrasa i pietrena (ŠL x P) te velikog jorkšira i pietrena (VJ X P). Svinje su tovljene u istim uvjetima. Hranjene krmnom smjesom s 15,36% sirovih proteina i 13,22 MJ ME/kg. Vrijednost pH mesa određena je pH-metrom Mettler Toledo, sposobnost vezanja vode mesa prema Grau-Hammu (1952.), a boja i mramoriranost mesa prema američkoj NPCC-metodi. Između istraživanih genotipova svinja nije bilo statistički značajnih razlika (P>0,05) u veličini dnevnih prirasta (640 g, 680 g i 680 g), ali su utvrđene razlike u konverziji hrane. Najmanji utrošak hrane za kilogram prirasta imali su križanci VJ x P (2,04 kg), a zatim križanci ŠL x VJ (3,22 kg) i križanci ŠL x P (3,63). Najveću mesnatost polovica (55,15%) i najbolju konformaciju polovica imali su križanci VJ x P, a zatim prema mesnatosti sljede križanci ŠL x VJ (54,71%) i križanci ŠL x P (54,08%). Kvaliteta mesa svinja istraživanih genotipova bila je zadovoljavajuća. Križanci s pietrenom (ŠL x P i VJ x P) imali su nešto slabiju sposobnost vezanja vode mesa (9,70 cm2 i 9,80 cm2) u odnosu na križance VJ x ŠL (8,51 cm2). Križanci s pietrenom također su imali slabiji intenzitet boje mesa (2,50 i 2,33) i slabiju mramoriranost mesa (1,38 i 1,50) u odnosu na intenzitet boje i mramoriranost mesa križanaca VJ x ŠL (2,75 i 2,50). |
Ključne riječi: svinje, križanci, tovna svojstva, klaonička svojstva
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