Kakovost volne jezersko-solčavske ovce

Avguštin, Rebeka (author), Simčič, Mojca (mentor)

Namen magistrske naloge je bil ugotoviti kako kakovostna je volna pri ovnih jezersko–solčavske pasme. Zanimalo nas je v katere kakovostne razrede bi se razvrstila volna mladih ovnov, ki zaključijo direktni test na testnih postajah in kateri dejavniki vplivajo na lastnosti kakovosti volne (premer vlaken, faktor udobnosti, finost preje, dolžina in nakodranost vlaken) in na maso nastriženega runa. Vzorci volne (538) so bili razvrščeni v štiri kakovostne razrede glede na premer vlaken (0,19 % fina volna, 7,43 % srednja volna, 44,80 % groba volna, 47,58 % zelo groba volna). Povprečna količina runa na ovna je bila 1,58 ± 0,44 kg. Povprečni premer vlaken je bil 29,96 ± 2,72 μm. Finost preje je bila v povprečju 29,56 ± 2,84 μm. Faktor udobnosti je bil v povprečju 57,81 ± 15,63 %. V povprečju so bila volnena vlakna dolga 80,90 ± 20,10 mm. Nakodranost vlaken je bila 48,70 ± 8,36 stopinje/mm. Ugotovili smo, da so na večino lastnosti kakovosti volne in na maso runa statistično značilno vplivali leto striženja, mesec striženja, testna postaja, starost ovna in izvorni trop. Močno korelacijo smo ugotovili med premerom vlaken in faktorjem udobnosti (-0,979), premerom vlaken in finostjo preje (0,967) ter faktorjem udobnosti in finostjo preje (-0,937).

• Language: Slovenian
• Keywords: ovce, pasme, jezersko-solčavska ovca, volna, kakovost
• Work type: Master's thesis/paper
• Organization: BF - Biotechnical Faculty
• Year: 2021
• PID: 20.500.12556/RUL-125326
• COBISS.SI-ID: 55632131
• Publication date in RUL: 11.03.2021

Secondary language

• Language: English
• Title: Wool quality of the Jezersko – Solčava sheep

Abstract

The aim of this master thesis was to determine the quality of wool in rams of the Jezersko-Solčava breed. We studied into which quality classes the wool of young rams finished the performance test at the test station was classified and which factors affected the wool quality traits (fibre diameter, comfort factor, spinning fineness, fibre length and curvature) and raw fleece weight. The wool samples (538) were classified into four quality classes according to the fibre diameter (0.19% fine wool, 7.43% medium wool, 44.80% coarse wool, 47.58% very coarse wool). The average raw fleece weight per ram was 1.58 ± 0.44 kg. The average fibre diameter was 29.96 ± 2.72 μm. The average spinning fineness was 29.56 ± 2.84 μm. The average comfort factor was 57.81 ± 15.63%. On average, the wool fibres were 80.90 ± 20.10 mm long. The average fibre curvature was 48.70 ± 8.36 degrees / mm. We found that most wool quality traits as well as raw fleece weight were significantly affected by year of shearing, month of shearing, test station, age of ram and flock of origin. A strong correlations were found between fibre diameter and comfort factor (-0.979), between fibre diameter and spinning fineness (0.967), and between comfort factor and spinning fineness (-0.937).

• Keywords: sheep, breeds, Jezersko-Solčava sheep, wool, quality