članak: 1 od 1  
Acta veterinaria
2006, vol. 56, br. 1, str. 3-15
jezik rada: engleski
neklasifikovan
doi:10.2298/AVB0601003L

Vrednosti hematoloških i biohemijskih parametara u krvi tovne junadi hranjenih zaštićenim metioninom
aFaculty of Agriculture, Zagreb, Croatia
bPLIVA, Research Institute, Zagreb, Croatia
cFaculty of Agriculture, Osijek, Croatia

e-adresa: bliker@agr.hr

Sažetak

U ovom radu su prikazani rezultati ispitivanja uticaja, u buragu nerazgradljivog, zaštićenog (by-pass) metionina na neke vrednosti hematoloških i biohemijskih parametara u krvi tovne junadi, uključujući ukupne proteine, albumine, triacilglicerole, ukupni holesterol, glukozu, ureu, kreatinin, aktivnost alanin-aminotransferaze (ALT), aktivnost aspartat-aminotransferaze (AST), aktivnost gamaglutamil- transferaze (GGT), broj eritrocita (RBC), srednji volumen eritrocita (MCV), srednju vrednost hemoglobina eritrocita (MCH), raspodelu eritrocita po volumenu (RDW), koncentraciju hemoglobina (Hb), hematokrit (Hct), broj leukocita (WBC) i diferencijalnu krvnu sliku. Istraživanje je trajalo 94 dana i izvršeno je na 26 životinja podeljenih u dve jednake grupe, kontrolnu (C) i oglednu (E). Junad je hranjena livadskim senom i kukuruznom silažom uz dnevni dodatak 500 g krmne smese (35% CP) po grlu. Životinje iz grupe E su dnevno, po grlu, dobijale i 10 g DL-metionina zaštićenog od razgradnje u buragu. Uzorci krvi su uzimani 1., 34., 68. i 94. dana ogleda. Nivo glukoze i ukupnog holesterola u plazmi grupe E je pokazivao tendenciju rasta prema kraju ogleda (P=0,065 odnosno P=0,064), dok je nivo uree imao tendenciju pada (P=0,082). Aktivnost ALT, kod životinja grupe E, je pokazivala 68. i 94. dana tendenciju porasta (P=0,127 odnosno P=0,104). Razlike u koncentraciji ukupnih proteina, albumina, triacilglicerola, kreatinina i aktivnosti AST i GGT između grupa nisu bile signifikanatne. Ovi rezultati ukazuju da bi suvišak metionina mogao da izazove porast nivoa glukagona u krvnoj plazmi.

Ključne reči

beef cattle; rumen-protected methionine; biochemical values; haematological values; glucagon

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