ODNOS POLOŽAJA I BROJNOSTI PSEUDOCISTI METILJA FASCIOLOIDES MAGNA U JETRIMA JELENA OBIČNOG

master's thesis

• Title (english): RELATION BETWEEN LOCATION AND NUMBER OF FASCIOLOIDES MAGNA PSEUDOCYSTS IN RED DEER LIVERS
• Author: Petra Verzak
• Mentor: Dean Konjević (mentor)
• Mentor: Miljenko Bujanić (mentor)
• Committee member: Zdravko Janicki (predsjednik povjerenstva)
• Committee member: Dean Konjević (član povjerenstva)
• Committee member: Miljenko Bujanić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Veterinary Medicine; Zagreb
• Defense date and country: 2021-10, Croatia
• Scientific / art field, discipline and subdiscipline: BIOMEDICINE AND HEALTHCARE; Veterinary Medicine; Veterinary Public Health and Food Safety

Abstract

Metilj Fascioloides magna parazitira u pseudocisti u jetrenom parenhimu konačnih
nositelja u koje se ubraja i jelen obični. Pseudociste su produkt organizma nositelja, a
namijenjene su ograničavanju kretanja metilja. Iako ga ograničavaju u kretanju, pseudociste
(osim u nositelja tipa slijepa ulica) ne ubijaju metilja, već on u njima nalazi povoljne uvjete za
30
život. Cilj ovoga istraživanja je utvrditi raspodjelu pseudocista po trećinama jetara jelena
običnoga. Ukupno su prikupljene 143 jetre i razdijeljene na tri jednaka dijela, pri čemu je,
promatrajući sa strane ošita, lijevu trećinu sačinjavao lijevi jetreni režanj, srednju trećinu
kvadratni, repasti i dorzalni dio lijevog režnja, a desnu trećinu desni režanj i kaudolateralni dio
kvadratnog režnja. Utvrđene pseudociste pripisivane su odgovarajućoj trećini. Statistički
znakovito veći broj pseudocista (n=655) nalazi se u srednjoj u odnosu na lijevu (p = .00009) i
desnu trećinu (p= .00001). Razlika u broju pseudocista između lijeve (n=321) i desne trećine
(n=277) nije statistički znakovita (p= .3492). Usporedba jetara s najvećim brojem pseudocista
u srednjoj trećini u odnosu na one s najvećim brojem u lijevoj i desnoj trećini bila je statistički
znakovita. Usporedba jetara s najvećim brojem pseudocista u lijevoj i desnoj trećini nije
statistički znakovita, ali je vjerojatnost nalaza jetara s najvećim brojem pseudocista u lijevoj
trećini 1,73 puta viša u odnosu na one u desnoj (OR=1,73 (CI 95% .7850 do 3.8036)). I u
slučajevima u kojima nalazimo 10 ili više pseudocista u jednoj od trećina slijedi isti obrazac.
Rezultati istraživanja ukazuju da srednja trećina jetara pruža najkvalitetnije uvjete za život
metilja.

Abstract (english)

Digenean trematode Fascioloides magna parasitizes in the pseudocysts within the liver
parenchyma of the final hosts. Red deer is also classified as final host. As product of the host's
organism pseudocysts are formed in order to prevent further migration of flukes. Though they
prevent its migration, pseudocysts do not kill flukes (except in the case of a dead-end host), but
he finds suitable environment within them. The aim of this research was to determine
distribution of pseudocysts in red deer livers. In total, 143 red deer livers were collected and
cut into three equally long parts. Observing form the diaphragmatic surface left third was
composed of left liver lobe, middle third contained quadrate lobe, caudate and dorsal part of the
left lobe, while right third contained right lobe and caudo-lateral part of the quadrate lobe.
Observed pseudocysts were categorized according to the mentioned thirds of the livers.
Significantly larger number of pseudocysts (n=655) was found in middle third, compared to left
(p= .00009) and right third (p= .00001). Difference in pseudocyst number between left (n=321)
and right third (n=277) was not statistically significant (p= .3492). Comparation of livers with
largest number of pseudocysts in middle third with those having largest number in left and right
third was statistically significant. However, comparison between left and right third has not
yielded statistically significant difference. Even so, odds to find livers with largest number of
pseudocysts in left third was 1.73 times higher than in the right third (OR=1.73 (CI 95% .7850
to 3.8036)). Similarly, in the cases when at least one third contained 10 or more pseudocysts,
their distribution has followed the same pattern. Obtained result indicate that middle part of
the liver is the most suitable for the life of the flukes.

• Keywords: Fascioloides magna; konačni nositelj; jelen obični; pseudocista; jetra
• Keywords (english): Fascioloides magna; final hosts; red deer; pseudocyst; liver
• Language: croatian
• URN:NBN: urn:nbn:hr:178:833642
• 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: 2021-10-18 10:52:52