Hranjivost silirane biljne mase dvaju hibrida sudanske trave

master's thesis

• Title (english): The feeding value of two sudan grass hybrids
• Author: Jasna Lehunšek
• Mentor: Marina Vranić (mentor)
• Committee member: Marina Vranić (predsjednik povjerenstva)
• Committee member: Krešimir Bošnjak (član povjerenstva)
• Committee member: Jasna Pintar (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Field Crops, Forage and Grassland); Zagreb
• Defense date and country: 2017-07-13, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Cilj diplomskog rada bio je usporediti hranjivost fermentirane krme dvaju hibrida sudanske trave obzirom na osnovni kemijski sastav i kvalitetu fermentacije krme. Korištene su dvije sorte sudanske trave: sorta Su-Su i sorta Pacific graze. Istraživanje je provedeno tijekom vegetacijske sezone 2014. godine na pokusnoj parceli Sveučilišta u Zagrebu Agronomskog fakulteta.
Pokošena biljna masa je silirana u laboratorijske silose. Nakon 35 dana od zatvaranja silosa, fermentirana krma je analizirana NIR spektrofotometrom na osnovni kemijski sastav i kvalitetu fermentacije procjenom slijedećih kemijskih parametara: sadržaj suhe tvari (ST), sirovih proteina (SP), neutralnih detergent vlakana (NDV), kiselih detergent vlakana (KDV), metaboličke energije (ME), probavljivost organske tvari u suhoj tvari (D-vrijednost), razgradivost sirovih proteina (RSP), faktor konzumacije za ovce i goveda, pH vrijednost i amonijski N (NH3-N) .
Zaključeno je da između dva hibrida sudanske trave nema utvrđenih statistički značajnih razlika niti za prinos suhe tvari (ST) po jedinici površine niti za bilo koji od istraživanih parametara hranjivosti fermentirane krme ili kvalitete fermentacije u silosu.

Abstract (english)

The objective of this stady was to compare the nutrition value and the fermentation quality of the two Sudan grass hybrides. The two varieties of Sudan grass were used in the experiment; Su-Su and Pacific graze variety. The research was carried out during the vegetation season in 2014. on the experimental field of the University of Zagreb Faculty of Agriculture.
Harvested plant material was ensiled into laboratory siloses. After 35 days ensiling, the silage was analyzed by NIR spectrometry on chemical composition and fermentation quality by estimating the following parameters: dry matter (DM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), metabolic energy (ME), intake for sheep and cattle, pH value, the digestibility of the organic matter (OM) andNH3-N concentration.
Between the two Sudan grass hybrids no statistically significant differences were estimated for the yield of the DM per unit area neither for the nutritive value or the quality of fermentation in silo.

• Keywords: sudanska trava; sorta; hranjivost; sjetva; visina košnje; hranjiva vrijednost
• Keywords (english): Sudan grass; varieties; nutrition value; fermentation quality
• Language: croatian
• URN:NBN: urn:nbn:hr:204:301266
• 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: Access restricted to students and staff of home institution
• Repository: Repository Faculty of Agriculture University of Zagreb
• Created on: 2017-07-18 08:30:43