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2010, vol. 26, br. 5-6, str. 339-346
Uticaj zamene sporo- sa brzo- razgrađujućim skrobom u obroku za ovnove u porastu na nivo mikrobiološke proteosinteze u buragu
aNational Research & Development Institute for Animal Biology and Nutrition, Baloteşti, Ilfov, Romania
bBabes-Bolyai University, Raluca Ripan Institute for Research in Chemistry, Cluj-Napoca, Romania

e-adresaandreea.vasilachi@ibna.ro
Ključne reči: microbial protein; rumen; starch; barley; corn
Sažetak
Cilj ovog ispitivanja je bio da se odredi nivo mikrobiološke proteosinteze kod ovaca, nakon zamene klasičnog sastojka (kukuruz) sa izvorom brzo fermentujuće energije (ječam), kada je protein komponenta u smeši visoko razgradiva (sačma uljane repice). Obroci su ispitani na dve grupe od četiri ovna rase merino, težine 50-55 kilograma. Redovna procedura za in vivo testove svarljivosti je korišćena i urin sakupljan za određivanje koncentracija derivata purina. Konzumiranje dva obroka su rezultirala u sličnim vrednostima: 1.26-1.29 MFU, 124-129 g IDPN, 112-118 g IDPE; grupe su se razlikovale samo u pogledu dinamike dostupnosti energije na nivou buraga. Količina derivata purina izlučena u urinu bila je 12.58 mmols/dan u grupi koja je hranjena kukuruzom, i 9.49 mmols/dan u grupi koja je dobijala ječam; prema tome, mikrobiološka proteosinteza je procenjena na 43.11 g IDMP/dan za grupu hranjenu kukuruzom i 31.3 g IDMP/dan za grupu koja je dobijala ječam (P=0,396). Zaključeno je da je uticaj sinhronizovanja dinamike energije i proteina u grupi koja je dobijala ječam za posledicu imala činjenicu da je dostupnost energije i proteina bila ograničena na prvih nekoliko sati posle administracije smeše, kada je kapacitet porasta mikroorganizama u buragu verovatno bio nadmašen. U cilju maksimiziranja kapaciteta za porast, veoma je važno produžiti period sinhronizovane dostupnosti energije i proteina u buragu.
Reference
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O članku

jezik rada: engleski
vrsta rada: izvorni naučni članak
DOI: 10.2298/BAH1006339V
objavljen u SCIndeksu: 10.11.2010.

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