Original scientific paper
https://doi.org/10.33128/s.75.1-2.5
CHEMICAL COMPOSITION OF FERMENTED SEMINATURAL FORAGE ENSILED WITH GROUND CORN SUPPLEMENTATION
Marina Vranić
; Agronomski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Krešimir Bošnjak
; Agronomski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Monika Nekić
; studentica na Agronomskom fakultetu Sveučilišta u Zagrebu, Zagreb, Hrvatska
Mateo Papac
; student na Agronomskom fakultetu Sveučilišta u Zagrebu, Zagreb, Hrvatska
Božica Lukšić
; studentica na Agronomskom fakultetu Sveučilišta u Zagrebu, Zagreb, Hrvatska
Nataša Pukec Pintić
; Hrvatska agencija za poljoprivredu i hranu, Križevci, Hrvatska
Andreja Babić
; Hrvatska agencija za poljoprivredu i hranu, Križevci, Hrvatska
Ivica Vranić
; Hrvatska agencija za poljoprivredu i hranu, Križevci, Hrvatska
Abstract
The objective of this paper was to determine the effect of ground corn grain supplementation to the semi-natural grassland on the pH value and chemical composition of fermented forage. The ground corn was supplemeted to fresh semi-natural grassland forage at ratio of 0, 3, 6, 12 and 24% for treatments TR1, TR2, TR3, TR4 and TR5 respectivelly. A total of 25 laboratory siloses (5 treatments x 5 repetitions) per treatment were formed. Forage was fermented for 47 days before analysis by wet chemistry for dry matter (DM) content and pH value while NIR spectroscopy was used for the chemical quality parameters prediction: crude proteins (CP), crude fiber (CF), ash, non-nitrogen extractive substances (NET) and crude fat (CF). It was found that the addition of 3% of ground maize grain to the semi-natural grassland forage at ensiling does not affect DM, CP and CF, while the addition of 3 and 6 % does not affect the ash content, NET and pH value of fermented forage (P>0.05). The addition of 3 -24 % of ground corn to the semi-natural grassland forage at ensiling linearly increased the DM (P<001), CF (P<0,001), NET (P<0,001) and at the same time reduced CP (P<0.05) and ash (P<0,001) in fermented forage. It was concluded that, of the treatments investigated, the greatest effect on lowering the pH value in silo had 12 % supplementation of ground corn to the semi-natural forage. Besides, the ground corn supplementation affected the chemical composition, as a prerequisite of forage nutritive value, in a way that it reduced the content of CP and ash, and increased DM, CF and NET in fermented forage.
Keywords
corn; semi-natural grassland; fermented forage; chemical composition
Hrčak ID:
265863
URI
Publication date:
9.7.2021.
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