Mogućnosti primjene alternativnih antimikrobnih pripravaka u peradarstvu

master's thesis

• Title (english): Application Possibilities of Alternative Antimicrobial Agents in Poultry Farming
• Author: Lucija Bagić
• Mentor: Liča Lozica (mentor)
• Committee member: Željko Gottstein (predsjednik povjerenstva)
• Committee member: Dražen Đuričić (član povjerenstva)
• Committee member: Liča Lozica (član povjerenstva)
• Granter: University of Zagreb; Faculty of Veterinary Medicine; Zagreb
• Defense date and country: 2025-03-28, Croatia
• Scientific / art field, discipline and subdiscipline: BIOMEDICINE AND HEALTHCARE; Veterinary Medicine; Veterinary Public Health and Food Safety

Abstract

Proizvodnja peradi predstavlja jednu od ključnih grana prehrambene industrije koja svake
godine globalno raste. Zbog sve većeg problema antimikrobne rezistencije, regulativa Europske
unije značajno je ograničila upotrebu antibiotika u uzgoju peradi. Time su se otvorila vrata
istraživanju učinkovitih i sigurnih alternativa antibioticima, uključujući probiotike, prebiotike,
organske kiseline, fitogene aditive, bakteriocine, bakteriofage i enzime. Probiotici i prebiotici
igraju ključnu ulogu u očuvanju zdravlja crijevne mikrobiote, potičući rast korisnih bakterija i
smanjujući prisutnost patogena. Organske kiseline reguliraju pH probavnog sustava, čime
ograničavaju rast štetnih mikroorganizama, dok fitogeni aditivi, poput eteričnih ulja, pokazuju
antimikrobna i antioksidativna svojstva. Bakteriocini i bakteriofagi nude visoko specifične
strategije za suzbijanje patogenih bakterija, dok enzimi poboljšavaju probavljivost hranjivih
tvari i podržavaju zdravlje crijeva. Iako alternativni pripravci nude brojne prednosti u smislu
sigurnosti, očuvanja mikroflore i smanjenja otpornosti bakterija, njihova primjena u
peradarstvu suočava se s određenim izazovima. Unatoč tome, rastući interes za održivim i
sigurnim rješenjima u peradarstvu potiče razvoj i primjenu alternativnih pristupa, s ciljem
smanjenja upotrebe antibiotika i osiguranja zdravlja životinja i potrošača.

Abstract (english)

Poultry production represents one of the key branches of the food industry that grows globally
every year. Due to the increasing problem of antimicrobial resistance, European Union
regulations have significantly restricted the use of antibiotics in poultry farming. This has
opened the door to research effective and safe alternatives to antibiotics, including probiotics,
prebiotics, organic acids, phytogenic additives, bacteriocins, bacteriophages, and enzymes.
Probiotics and prebiotics play a crucial role in maintaining the health of the intestinal
microbiota, promoting the growth of beneficial bacteria and reducing the presence of pathogens.
Organic acids regulate the pH of the digestive system, thereby limiting the growth of harmful
microorganisms, while phytogenic additives, such as essential oils, exhibit antimicrobial and
antioxidant properties. Bacteriocins and bacteriophages offer highly specific strategies for
controlling pathogenic bacteria, while enzymes improve the digestibility of nutrients and
support gut health. Although alternative agents offer numerous advantages in terms of safety,
preservation of microflora and reduction of bacterial resistance, their application in poultry
farming faces certain challenges. Despite this, the growing interest in sustainable and safe
solutions in poultry farming encourages the development and application of alternative
approaches, with the aim of reducing the use of antibiotics and ensuring the health of animals
and consumers

• Keywords: peradarstvo; perad; antibiotici; alternativni antimikrobni pripravci
• Keywords (english): poultry farming; poultry; antibiotics; alternative antimicrobial agents
• Language: croatian
• URN:NBN: urn:nbn:hr:178:886561
• Study programme: Title: Veterinary Medicine; Study programme type: university; Study level: integrated undergraduate and graduate; Academic / professional title: doktor/doktorica veterinarske medicine (doktor/doktorica veterinarske medicine)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2025-04-04 11:30:58