Hranidbena vrijednost fermentirane travne mase

master's thesis

• Author: Božica Lukšić
• Mentor: Marina Vranić (mentor)
• Committee member: Marina Vranić (predsjednik povjerenstva)
• Committee member: Krešimir Bošnjak (član povjerenstva)
• Committee member: Kristina Kljak (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Field Crops, Forage and Grassland); Zagreb
• Defense date and country: 2017-05-04, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Siliranje je skladištenje zelene biljne mase u anaerobnim uvjetima, koji su pogodni za razvoj i aktivnost mikroorganizama koji fermentiraju biljne ugljikohidrate u organske kiseline čime se povećava kiselost biljne mase koja se tako konzervira u obliku fermentirane travne mase. Hipoteza ovog diplomskog rada je bila da su travne silaže proizvedene na OPG-ima osrednje do dobre hranjivosti. Cilj je bio utvrditi hranjivost uzoraka travnih silaža (n=149) s 10 OPG-a koji su analizirani NIR spektroskopijom u laboratoriju pokušališta Agronomskog fakulteta Centar za travnjaštvo na Medvednici obzirom na slijedeće kemijske parametre: suha tvar (ST), korigirana ST, sirovi proteini (SP), razgradivi SP, neutralna detergent vlakna (NDV), metabolička energija (ME), kiselost (pH), amonijski dušik (NH3-N), organska tvar (OT), šećer i probavljivost OT u ST (D-vrijednost). Analizirani uzorci fermentiranih travnih masa (n=149) s 10 OPG-a ukazuju na nisku kvalitetu i visoku varijabilnost svih kemijskih parametara, odnosno hranjive vrijednosti analiziranih uzoraka.

Abstract (english)

Ensiling is a process of green plant material storage under anaerobic conditions suitable for the development and activity of microorganisms fermenting vegetable carbohydrates into organic acids. In that way, the acidity of the plant mass is increased and the forage is conserved in the form of grass silage or haylage.
The hypothesis of this graduate paper was that the grass silages produced on family farms were of medium to good nutritional quality. The aim was to predict the nutritive quality by NIR spectroscopy of grass silage samples (n=149) collected on 10 family farms. The samples were analyzed in the Grassland Research Center of the Faculty of Agriculture in terms of: dry matter (DM), corrected DM, crude proteins (CP), degradable CP, neutral detergent fiber (NDF), metabolic energy (ME), acidity (pH), ammonia nitrogen (NH3-N), organic matter (OM), sugar residuals and the digestibility of OM in DM (D-value).
The results indicate low quality of and high variability in all chemical components thus nutritive values of analysed samples.

• Keywords: fermentirana travna masa; NIR spektroskopija; OPG; hranjivost fermentirane travne mase
• Keywords (english): fermented grass mass; NIR spectroscopy; family farms; nutritive value of fermented grass mass
• Language: croatian
• URN:NBN: urn:nbn:hr:204:286537
• Study programme: Title: Plant Sciences; Study programme type: university; Study level: graduate; Academic / professional title: magistar / magistra inženjer/inženjerka biljnih znanosti (magistar / magistra inženjer/inženjerka biljnih znanosti)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2017-07-19 12:41:50