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undergraduate thesis
Kvaliteta kokošjih jaja iz alternativnih sustava proizvodnje
2018. urn:nbn:hr:151:309904
Keri, Ana Marija
Josip Juraj Strossmayer University of Osijek
Faculty of Agrobiotechnical Sciences Osijek
DEPARTMENT FOR SPECIAL ZOOTECHNIQUE

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Keri, A. M. (2018). Kvaliteta kokošjih jaja iz alternativnih sustava proizvodnje (Undergraduate thesis). Retrieved from https://urn.nsk.hr/urn:nbn:hr:151:309904

Keri, Ana Marija. "Kvaliteta kokošjih jaja iz alternativnih sustava proizvodnje." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, 2018. https://urn.nsk.hr/urn:nbn:hr:151:309904

Keri, Ana Marija. "Kvaliteta kokošjih jaja iz alternativnih sustava proizvodnje." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, 2018. https://urn.nsk.hr/urn:nbn:hr:151:309904

Keri, A. M. (2018). 'Kvaliteta kokošjih jaja iz alternativnih sustava proizvodnje', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, accessed 27 July 2022, https://urn.nsk.hr/urn:nbn:hr:151:309904

Keri AM. Kvaliteta kokošjih jaja iz alternativnih sustava proizvodnje [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek; 2018 [cited 2022 July 27] Available at: https://urn.nsk.hr/urn:nbn:hr:151:309904

A. M. Keri, "Kvaliteta kokošjih jaja iz alternativnih sustava proizvodnje", Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, Osijek, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:151:309904

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Metadata
TitleKvaliteta kokošjih jaja iz alternativnih sustava proizvodnje
Title (english)The quality of chicken eggs from alternative production system
AuthorAna Marija Keri
MentorZlata Kralik (mentor)
Committee memberZoran Škrtić (član povjerenstva)
Committee memberIvana Klaričić (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Faculty of Agrobiotechnical Sciences Osijek
(DEPARTMENT FOR SPECIAL ZOOTECHNIQUE)
Osijek
Defense date and country2018-09-24, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Agronomy
Production and Processing of Animal Products
Abstract
Cilj ovog rada bio je utvrditi kako alternativni sustavi proizvodnje jaja utječu na parametre kvaliteta jaja. Napravljena je komparacija kvalitete jaja iz tri sustava držanja konvencionalnog (obogaćeni kavezi) i dva alternativna sustava proizvodnje (volijere i podni uzgoj na dubokoj stelji). U pokusu su korištene nesilice hibridne linije Isa Brown, koje su bile u 69. tjednu proizvodnje. Nesilice su hranjene komercijalnom krmnom smjesom. Nasumičnim odabirom uzorkovana su jaja za potrebe analize kvalitete i svježine (masa jaja i masa osnovnih dijelova u jajetu, indeks oblika, čvrstoća i debljina ljuske, visina bjelanjka, HJ, boja žumanjka, pH bjelanjka i pH žumanjka). Kvalitete jaja određena je na ukupno 74 jaja od čega je 27 jaja od nesilica držanih na dubokoj stelji (DS), 25 komada od nesilica držanih u volijerama (VO) i 22 komada jaja od nesilica držanih u obogaćenim kavezima (OK). Analizom rezultata utvrđeno je da sustavi držanja kokoši nesilica ne utječu na indeks oblika, također ne utječu ni na masu žumanjka. Važan utjecaj imaju na masu jaja, na masu bjelanjka i ljuske. Rezultati su nam također pokazali da sustav držanja nesilica ima statistički značajan utjecaj na boju žumanjka, HJ, pH bjelanjka i pH žumanjka.
Abstract (english)
The aim of this paper was to determine how alternative egg production systems affect egg quality parameters. Egg quality comparison was made from three conventional cage systems (enriched cages) and two alternative production systems (aviaries and floor breeding on deep straw). Hybrid line hens Isa Brown which was in the 69th week of production were used in the experiment. The hens were fed with commercial feed mixture. Eggs were sampled by random selection for analysis of quality and freshness (egg mass and weight of basic parts in egg, sharp index, firmness and thickness of shell, egg whites, Haugh units, yolk color, pH of egg white and pH of egg yolk). The quality of the eggs was determined on a total of 74 eggs, out of which 27 eggs were from deep straw (DS), 25 eggs from hens kept in aviaries (VO) and 22 eggs from hens kept in enriched cages (OK). Analysis of the results found that different systems of production do not affect the shape index, nor does it affect the mass of egg yolks. There is a significant influence on egg mass, on egg whites mass and shell. The results also showed that different systems of production has a statistically significant effect on the color of the egg yolk, Haugh units, pH of the egg whites and the pH of the egg yolk.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:151:309904
Study programmeTitle: Agriculture; specializations in: Agroeconomics, Plant production, Mechanization, Zootechnique, Horticulture
Course: Zootechnique
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka agronomije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka agronomije)
Type of resourceText
File originBorn digital
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Created on2019-05-14 13:35:06