Utvrđivanje prisutnosti i proširenosti kazeoznog limfadenitisa u stadima ovaca i koza

master's thesis

• Title (german): Determining the Presence and Extent of Caseous Lymphadenitis in Sheep and Goat Herds
• Author: Iva Bacan
• Mentor: Josipa Habuš (mentor)
• Mentor: Zrinka Štritof (mentor)
• Committee member: Suzana Hađina (predsjednik povjerenstva)
• Committee member: Zrinka Štritof (član povjerenstva)
• Committee member: Josipa Habuš (član povjerenstva)
• Granter: University of Zagreb; Faculty of Veterinary Medicine; (Department of Microbiology and Infectious Diseases with Clinic); Zagreb
• Defense date and country: 2021-02-05, Croatia
• Scientific / art field, discipline and subdiscipline: BIOMEDICINE AND HEALTHCARE; Veterinary Medicine; Veterinary Public Health and Food Safety

Abstract

Kazeozni limfadenitis je kronična, svjetski proširena zarazna bolest ovaca i koza koja se očituje stvaranjem piogranuloma u površinskim limfnim čvorovima, a rjeđe u visceralnim limfnim čvorovima i organima. Uzročnik ove bolesti je Corynebacterium pseudotuberculosis. Visceralni oblik kazeoznog limfadenitisa je jedan od najčešćih uzroka sindroma mršavih ovaca. Iako kazeozni limfadenitis nije zoonoza važno je biti svjestan činjenice da C. pseudotuberculosis ima određeni zoonotski potencijal. Tijekom ovog istraživanja provedeno je epizootiološko anketiranje vlasnika i klinički pregled 25 stada ovaca i 8 stada koza s područja Veterinarske stanice Ozalj. U svim slučajevima kada se temeljem epizootiološke i kliničke metode postavila sumnja na kazeozni limfadenitis pristupilo se objektivnoj (bakteriološkoj) dijagnostici navedene bolesti koja se provodila na Zavodu za mikrobiologiju i zarazne bolesti na Veterinarskom fakultetu u Zagrebu.
Cilj ovog istraživanja bio je utvrđivanje prisutnosti i proširenosti kazeoznog limfadenitisa u stadima malih preživača na području terena Veterinarske stanice Ozalj. Tijekom istraživanja apscesi su nađeni u devet životinja, no prisutnost C. pseudotuberculosis potvrđena je kod samo jedne koze što daje prevalenciju bolesti od 3% (1/33) u ukupnom broju pretraženih stada, odnosno 12,5% (1/8) u pretraženim stadima koza. Važno je napomenuti da smo anketom provedenom među posjednicima ovaca i koza utvrdili da postoji veliki problem sa informiranosti vlasnika o postojanju ove bolesti i zoonotskom potencijalu njenog uzročnika s jedne strane te spremnost da aktivno sudjeluju u njezinom otkrivanju i suzbijanju s druge. Obzirom da ova bolest ima zoonotski karakter, a istovremeno može uzrokovati ekonomske štete u ovčarstvu i kozarstvu, u stočarskoj grani koja je zadnjih godina u porastu, potrebno je uložiti veće napore u smislu redovitije i bolje edukacije stočara o važnosti prepoznavanja i suzbijanja ove bolesti.

Abstract (english)

Caseous lymphadenitis is a chronic contagious disease of sheep and goats with a worldwide distrubution. It is characterized by the formation of pyogranulomas in superficial lymph nodes and less frequently in visceral lymph nodes and organs. The aethiological agent that causes the disease is Corynebacterium pseudotuberculosis. The visceral form of caseous lymphadenitis is one of the most common causes of ˝thin ewe syndrome˝. Although, caseous lymphadenitis is not a zoonosis it is important to be aware of the fact that C. pseudotuberculosis has a certain zoonotic potential. During this research, an epizootiological survey of owners and a clinical examination of 25 flocks of sheep and 8 flocks of goats from the area of the Veterinary Clinic Ozalj were conducted. In cases when caseous lymphadenitis was suspected, smples were taken and sent on bacteriological examination, which was carried out at the Department of Microbiology and Infectious Diseases at the Faculty of Veterinary Medicine in Zagreb.
The aim of this study was to determine the presence and prevalence of caseous lymphadenitis in herds of small ruminants in the field covered by Veterinary Clinic Ozalj. During the study, abscesses were found in nine animals, but the presence of C. pseudotuberculosis was confirmed in only one goat, which gives a disease prevalence of 3% (1/33) in the total number of examined herds, and 12.5% (1/8) in the goat herds.
Knowledge about this disease among the respondents is very scarce and raising awareness and educating small ruminant owners about this disease would help in the earlier detection of symptoms as well as its diagnosis and further suppression.
It is important to note that a survey conducted among sheep and goat owners found complete lack of awareness about the existence of this disease and the zoonotic potential of its causative agent. On the one hand, it shows willingness of owners to actively participate in its detection and control. As a conclusion, we believe that more efforts should be made to better educate farmers about the importance of recognizing and controlling caseous lymphadenitis.

• Keywords: kazeozni limfadenitis; koza; ovca; rizični čimbenici; proširenost
• Keywords (english): caseous lymphadenitis; goat; sheep; risk factors; prevalence
• Language: croatian
• URN:NBN: urn:nbn:hr:178:923978
• 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: 2021-03-09 10:50:25