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master's thesis
Mikrobiološko onečišćenje ljuske kokošjih jaja iz različitih proizvodnih uzgoja
Zagreb: University of Zagreb, Faculty of Agriculture, 2018. urn:nbn:hr:204:756005
Blatarić, Nikolina
University of Zagreb
Faculty of Agriculture
Microbiology

Institutional repository: Repository Faculty of Agriculture University of Zagreb

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Blatarić, N. (2018). Mikrobiološko onečišćenje ljuske kokošjih jaja iz različitih proizvodnih uzgoja (Master's thesis). Zagreb: University of Zagreb, Faculty of Agriculture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:204:756005

Blatarić, Nikolina. "Mikrobiološko onečišćenje ljuske kokošjih jaja iz različitih proizvodnih uzgoja." Master's thesis, University of Zagreb, Faculty of Agriculture, 2018. https://urn.nsk.hr/urn:nbn:hr:204:756005

Blatarić, Nikolina. "Mikrobiološko onečišćenje ljuske kokošjih jaja iz različitih proizvodnih uzgoja." Master's thesis, University of Zagreb, Faculty of Agriculture, 2018. https://urn.nsk.hr/urn:nbn:hr:204:756005

Blatarić, N. (2018). 'Mikrobiološko onečišćenje ljuske kokošjih jaja iz različitih proizvodnih uzgoja', Master's thesis, University of Zagreb, Faculty of Agriculture, accessed 23 November 2024, https://urn.nsk.hr/urn:nbn:hr:204:756005

Blatarić N. Mikrobiološko onečišćenje ljuske kokošjih jaja iz različitih proizvodnih uzgoja [Master's thesis]. Zagreb: University of Zagreb, Faculty of Agriculture; 2018 [cited 2024 November 23] Available at: https://urn.nsk.hr/urn:nbn:hr:204:756005

N. Blatarić, "Mikrobiološko onečišćenje ljuske kokošjih jaja iz različitih proizvodnih uzgoja", Master's thesis, University of Zagreb, Faculty of Agriculture, Zagreb, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:204:756005

Metadata
TitleMikrobiološko onečišćenje ljuske kokošjih jaja iz različitih proizvodnih uzgoja
Title (english)Microbiological contamination of hen's eggshell in different housing systems
AuthorNikolina Blatarić
MentorLidija Kozačinski (mentor)
Committee memberLidija Kozačinski (predsjednik povjerenstva)
Committee memberNevijo Zdolec (član povjerenstva)
Committee memberMirna Mrkonjić Fuka (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Agriculture
(Microbiology)
Zagreb
Defense date and country2018-09-20, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Agronomy
Abstract
Kokošje jaje pripada osnovnoj namirnici u prehrani ljudi i iznimno je bogato hranjivim tvarima, no jednako tako može biti izvorom raznih mikroorganizama te uzrok otrovanja ljudi. Zato je bitno brinuti o procesu proizvodnje jaja, od nesenja pa sve do njihove distribucije i prodaje. Cilj rada bio je istražiti i usporediti mikrobiološku kvalitetu ljuske konzumnih jaja koja se nalaze u prodaji na našem tržištu te opisati načine uzgoja. Analizirana jaja bila su porijeklom iz kaveznog (konvencionalan) te slobodnog i podnog (alternativni) uzgoja. Za mikrobiološku pretragu ljuske pripremljeni su ispirci ljusaka jaja koji su pretraženi na ukupni broj aerobnih mezofilnih bakterija, prisutnost enterokoka i bakterije Escherichia coli. Bez obzira na način uzgoja nesilica, broj aerobnih mezofilnih bakterija nije pokazivao velika odstupanja i bio na razini od 3,5 do 3,9 log10. Broj enterokoka prosječno je iznosio 2,8 log10 CFU/ml na ljusci jaja iz slobodnog, 2,3 log10 CFU/ml iz podnog te 1,1 log10 CFU/ml iz kaveznog uzgoja. Bakterija E. coli je utvrđena u broju manjem od 10 CFU/ml isprika.
Abstract (english)
Hen's egg belongs to basic foodstuffs in human nutrition and it is extremely rich in nutrients, but also can be the source of various microorganisms and the cause of human poisoning. That is why it is important to worry about the process of egg production from laying to distribution and selling. The aim of this study was to investigate and compare the microbiological quality of the egshells that are sold on our market and to describe housing systems. The analyzed eggs are originated from battery cages (conventional), free range and deep litter housing systems (alternative). Eggshell's lavages were prepared for the microbiological examination of the eggshell and were searched for the total number of aerobic mesophilic bacteria, the presence of enterococci and bacteria Escherichia coli. Regardless of the housing system, the number of the aerobic mesophilic bacteria did not show large deviations and was at the level 3,5 to 3,9 log10. The average number of enterococci was 2,8 log10 CFU/ml on egshell from free range, 2,3 log10 CFU/ml from deep litter and 1,1 log10 CFU/ml from battery cage. E. coli was found to be below 10 CFU/ml of lavage.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:204:756005
Study programmeTitle: Agroecology
Study programme type: university
Study level: graduate
Academic / professional title: magistar/ magistra inženjer/inženjerka agroekologija (magistar/ magistra inženjer/inženjerka agroekologija)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2018-10-01 12:48:06