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Journal of Agricultural Sciences (Belgrade)
2018, vol. 63, br. 4, str. 409-419
jezik rada: engleski
vrsta rada: izvorni naučni članak
objavljeno: 08/02/2019
doi: 10.2298/JAS1804409J
Creative Commons License 4.0
Poboljšanje sadržaja metaboličke energije u suvom pivskom tropu korišćenjem enzimskih koktela u ishrani živine
aNigerian Institute of Animal Science, Department of Regulatory Affairs, Abuja, Nigeria
bUniversity of Ilorin, Ilorin, Department of Animal Production, Nigeria

e-adresa: abdulhameedjimoh@gmail.com

Sažetak

Utvrđivanje pozitivnog efekta dodatih enzima je od primarnog značaja za njihovo korišćenje pri formulisanju obroka za živinu. Ovo istraživanje je sprovedeno kako bi se odredio uticaj enzima na vrednost prividne metaboličke energije (engl. apparent metabolisable energy - AME) suvog pivskog tropa (engl. Brewers' dried grain - BDG). Ksilanaza, fitaza i višenamenski enzimi korišćeni su u potpuno slučajnom dizajnu kako bi se odredili uticaji pojedinačnih egzogenih enzima i njihovih koktela na metaboličku energiju za živinu korišćenjem odraslih petlića. Bilo je osam tretmana uključujući kontrolu i sedam eksperimetalnih tretmana sa BDG i sa jednim, dva ili tri enzima. Vrednosti AME određene su korišćenjem metode intubacije. Prikupljeni podaci su analizirani pomoću sistema statističke analize. Enzimi pojedinačno ili kao koktel poboljšali su vrednost AME suvog pivskog tropa u poređenju sa kontrolom. Povećanje vrednosti AME bilo je 3,48%, 5,39%, 5,92%, 14,29%, 18,13%, 23,21% odnosno 29,58% za fitazu, ksilanazu, koktel ksilanaze i fitaze, višenamenski enzim, koktel višenamenskog enzima i fitaze, koktel ksilanaze i višenamenskog enzima i koktel ksinalaze, fitaze i višenamenskog enzima. Kokteli enzima su bili značajno bolji (P˂0,05) nego pojedinačni enzimi u svojim uticajima na prividnu metaboličku energiju BDG. Fitaza je dovela do marginalnog povećanja AME proučavanih hraniva. Zaključeno je da je koktel enzima bolji nego pojedinačni enzimi u pogledu efekta na vrednost AME suvog pivskog tropa. Ukoliko su različiti enzimi dostupni, preporučuje se da se koriste enzimi sa većom aktivnošću.

Ključne reči

petlić; enzim; koktel; metabolička; energija; intubacija

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