Pregled metoda induciranog mitarenja u suvremenoj peradarskoj proizvodnji

master's thesis

• Title (english): Overview of Methods of Induced Moulting in Modern Poultry Production
• Author: Petra Potnešil
• Mentor: Liča Lozica (mentor)
• Mentor: Kristina Matković (mentor)
• Committee member: Željko Gottstein (predsjednik povjerenstva)
• Committee member: Kristina Matković (član povjerenstva)
• Committee member: Liča Lozica (član povjerenstva)
• Granter: University of Zagreb; Faculty of Veterinary Medicine; Zagreb
• Defense date and country: 2024-09-20, Croatia
• Scientific / art field, discipline and subdiscipline: BIOMEDICINE AND HEALTHCARE; Veterinary Medicine; Veterinary Public Health and Food Safety

Abstract

Mitarenje u peradi je fiziološki proces odbacivanja staroga i rasta novoga perja.
Istovremeno nastupa i involucija reproduktivnog sustava. U prirodi se ono poklapa za
inkubacijom jaja i odgojem podmlatka, dok se u intenzivnoj peradarskoj proizvodnji odvija pod
ljudskim utjecajem. Inducirano mitarenje može biti potaknuto konvencionalnim ili
alternativnim metodama, a cilj mu je smanjiti ili zaustaviti proizvodnju jaja kako bi u sljedećem
proizvodnom ciklusu ona bila veća, s jajima bolje kvalitete. Konvencionalne metode se baziraju
na uskraćivanju hrane i/ili vode te smanjenu fotoperioda. S druge strane, alternativne metode
primjenjuju različite tvari (minerale, hormone i hormonski aktivne tvari, biljne ekstrakte,
sjemenke žitarica, začine i sl.) samostalno ili kao dodatke krmnim smjesama. Usporedba
navedenih metoda je ukratko prikazana u ovome radu. Iako su obje vrste metoda učinkovite,
uskraćivanje hrane i vode uzrokuje određenu razinu stresa na organizam nesilica, što negativno
djeluje na dobrobit životinja u proizvodnji. Stoga se sve više pažnje pridaje alternativnim
načinima proizvodnje.

Abstract (english)

Molting in poultry is a physiological process of discarding old feathers and growing
new feathers. At the same time, the involution of the reproductive system occurs. In nature, it
coincides with incubation of eggs and rearing of young birds, while in intensive poultry
production it is artificially induced and takes place under human influence. Induced molting
can be conducted by conventional or alternative methods, and its goal is to reduce or stop egg
production so that in the next production cycle the production increases and the egg quality
improves. Conventional methods are based on food and/or water deprivation and reduced
photoperiod. On the other hand, alternative methods apply various substances (minerals,
hormones and hormonally active substances, plant extracts, grain seeds, spices, etc.)
independently or as additives to feed mixtures. The comparison of these methods is presented
in this thesis. Although both types of methods are effective, the deprivation of food/water causes
a certain level of stress on the laying hens, which has a negative effect on the welfare of the
birds in production. Therefore, more and more attention is being paid to alternative methods of
production.

• Keywords: perad; mitarenje; dobrobit; konvencionalne metode; alternativne metode
• Keywords (english): poultry; moulting; wellfare; conventional methods; alternative methods
• Language: croatian
• URN:NBN: urn:nbn:hr:178:503340
• 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: 2024-10-18 08:30:24