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undergraduate thesis
Inovativnom tehnologijom do povećanja sadržaja selena i cinka u jajima kokoši hrvatice
2017. urn:nbn:hr:151:035488
Išasegi, Irena
Josip Juraj Strossmayer University of Osijek
Faculty of Agrobiotechnical Sciences Osijek
DEPARTMENT FOR SPECIAL ZOOTECHNIQUE

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Išasegi, I. (2017). Inovativnom tehnologijom do povećanja sadržaja selena i cinka u jajima kokoši hrvatice (Undergraduate thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek. Retrieved from https://urn.nsk.hr/urn:nbn:hr:151:035488

Išasegi, Irena. "Inovativnom tehnologijom do povećanja sadržaja selena i cinka u jajima kokoši hrvatice." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, 2017. https://urn.nsk.hr/urn:nbn:hr:151:035488

Išasegi, Irena. "Inovativnom tehnologijom do povećanja sadržaja selena i cinka u jajima kokoši hrvatice." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, 2017. https://urn.nsk.hr/urn:nbn:hr:151:035488

Išasegi, I. (2017). 'Inovativnom tehnologijom do povećanja sadržaja selena i cinka u jajima kokoši hrvatice', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, accessed 09 December 2024, https://urn.nsk.hr/urn:nbn:hr:151:035488

Išasegi I. Inovativnom tehnologijom do povećanja sadržaja selena i cinka u jajima kokoši hrvatice [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek; 2017 [cited 2024 December 09] Available at: https://urn.nsk.hr/urn:nbn:hr:151:035488

I. Išasegi, "Inovativnom tehnologijom do povećanja sadržaja selena i cinka u jajima kokoši hrvatice", Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, Osijek, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:151:035488

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TitleInovativnom tehnologijom do povećanja sadržaja selena i cinka u jajima kokoši hrvatice
Title (english)Innovative technology to increase the content of selenium and zinc in eggs of the “Hrvatica” hen
AuthorIrena Išasegi
MentorZlata Kralik (mentor)
Committee memberZoran Škrtić (predsjednik povjerenstva)
Committee memberDalida Galović (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Faculty of Agrobiotechnical Sciences Osijek
(DEPARTMENT FOR SPECIAL ZOOTECHNIQUE)
Osijek
Defense date and country2017-09-25, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Agronomy
Animal Husbandry
Abstract
Cilj ovog istraživanja bio je utvrditi kako hranidba kukuruzom biofortificiranog cinkom i selenom utječe na povećanje navedenih mikroelemenata u jajetu te na kvalitetu konzumnih jaja. Pokusno razdoblje trajalo je 4 mjeseca. Kokoši su bile podijeljene u četiri skupine (A, B, C i D). Kokoši skupine A predstavljale su kontrolnu skupinu i konzumirale su smjese komercijalnog sastava, dok je skupina B konzumirala hranu s kukuruzom biofortificiranim s cinkom, a skupine C i D s dvije razine selena. Kvaliteta jaja određena je na ukupno 200 jaja, sadržaj cinka na 14 jaja i selena na 30 jaja. Parametri kvalitete jaja određeni su na svježim i čuvanim jajima. Od pokazatelja kvalitete jaja izmjereni su masa jaja i osnovnih dijelova, širina i dužina jaja te indeks oblika, boja žumanjka, visina bjelanjka; Haughove jedinice, čvrstoća i debljina ljuske, pH bjelanjka i pH žumanjka. Analizom rezultata utvrđeno je da se korištenjem kukuruza biofortificiranog selenom u hrani kokoši pasmine „Hrvatica“ statistički značajno povećava sadržaj selena u jestivom dijelu jaja (P<0,001), te se pozitivno djeluje na pokazatelje kvalitete jaja. Biofortifikacija kukuruza cinkom nije polučila zadovoljavajuće rezultate, stoga nije bilo značajnih razlika (P>0,05) kod sadržaja cinka u bjelanjcima kao i kod većine pokazatelja kvalitete jaja.
Abstract (english)
The aim of this research was to determine how feeding corn biofortified with zinc and selenium affects the increase of these microelements in egg, and what kind of influence it have on quality of eggs. Trial period lasted 4 months. Hens were divided into four groups (A, B, C, D). Hens from group A were representing control group and they consumed commercial mixtures. Group B consumed feed with corn biofortified with zinc, while groups C and D consumed feed with two levels of selenium. Quality of eggs was determined on the total of 200 eggs, zinc content on 14 eggs and selenium on 30 eggs. Egg quality parameters were determined on fresh and stored eggs. Egg quality parameters that were measured include: weight of eggs and basic parts, width and lenght of ege and the shape index, yolk color, albumen height, Haugh units, eggshell strenght and thickness, pH values of albumen and yolk. The results have shown that the use of corn biofortified with selenium in feed for "Hrvatica" hen significantly increases selenium content in the edible part of egg (P<0.001), and have a positive effect on egg quality parameters. Biofortification of corn with zinc did not yield satisfactory results, so there were no significant differences (P>0,05) in zinc content in egg whites as well as in most of egg quality parameters
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:151:035488
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
Access conditionsOpen access
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Public notezavršni rad
Created on2017-09-27 14:31:35