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master's thesis
Učinkovitost korištenja bolusa na proizvodne parametre i zdravstveni status mliječnih krava
Zagreb: University of Zagreb, Faculty of Agriculture, 2022. urn:nbn:hr:204:155600
Škrinjar, Ivana
University of Zagreb
Faculty of Agriculture
Animal Nutrition

Institutional repository: Repository Faculty of Agriculture University of Zagreb

Cite this document

Škrinjar, I. (2022). Učinkovitost korištenja bolusa na proizvodne parametre i zdravstveni status mliječnih krava (Master's thesis). Zagreb: University of Zagreb, Faculty of Agriculture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:204:155600

Škrinjar, Ivana. "Učinkovitost korištenja bolusa na proizvodne parametre i zdravstveni status mliječnih krava." Master's thesis, University of Zagreb, Faculty of Agriculture, 2022. https://urn.nsk.hr/urn:nbn:hr:204:155600

Škrinjar, Ivana. "Učinkovitost korištenja bolusa na proizvodne parametre i zdravstveni status mliječnih krava." Master's thesis, University of Zagreb, Faculty of Agriculture, 2022. https://urn.nsk.hr/urn:nbn:hr:204:155600

Škrinjar, I. (2022). 'Učinkovitost korištenja bolusa na proizvodne parametre i zdravstveni status mliječnih krava', Master's thesis, University of Zagreb, Faculty of Agriculture, accessed 19 December 2024, https://urn.nsk.hr/urn:nbn:hr:204:155600

Škrinjar I. Učinkovitost korištenja bolusa na proizvodne parametre i zdravstveni status mliječnih krava [Master's thesis]. Zagreb: University of Zagreb, Faculty of Agriculture; 2022 [cited 2024 December 19] Available at: https://urn.nsk.hr/urn:nbn:hr:204:155600

I. Škrinjar, "Učinkovitost korištenja bolusa na proizvodne parametre i zdravstveni status mliječnih krava", Master's thesis, University of Zagreb, Faculty of Agriculture, Zagreb, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:204:155600

Metadata
TitleUčinkovitost korištenja bolusa na proizvodne parametre i zdravstveni status mliječnih krava
Title (english)Effectiveness of using the tablet on production parameters and health status of dairy cows
AuthorIvana Škrinjar
MentorGoran Kiš (mentor)
Committee memberGoran Kiš (predsjednik povjerenstva)
Committee memberKristina Kljak (član povjerenstva)
Committee memberAntun Kostelić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Agriculture
(Animal Nutrition)
Zagreb
Defense date and country2022-09-28, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Agronomy
Abstract
Uporaba bolusa s aktivnim tvarima kao alternativa korištenju antibiotika sve je češća metoda prevencije mastitisa suvremene proizvodnje mlijeka. Sporo otpuštanje aktivnih tvari omogućuje produženo djelovanje takvih preparata. Cilj ovog rada bio je utvrditi učinkovitost korištenja bolusa s bioaktivnim tvarima, niacinamid, inulin, salicin te antioksidanti gingeroli, šogaoli, zingeron, na proizvodne parametre i zdravstveni status mliječnih krava. Istraživanje je provedeno na obiteljskom gospodarstvu u središnjoj Istri. U istraživanju je sudjelovalo 20 krava podijeljenih u dvije skupine prema dobi, a svaka skupina imala je svoju kontrolnu podskupinu. Mlijeko tretiranih krava analizirano je u Središnjem laboratoriju za kontrolu kvalitete mlijeka u Križevcima svakih 15 dana kroz razdoblje od 60 dana od primjene bolusa. Utvrđena je statistička značajnost utjecaja dobi na proizvodnju mlijeka te broj somatskih stanica u mlijeku starijih krava. Broj somatskih stanica, kao pokazatelj subkliničkog mastitsa, od početka do kraja istraživanja pao je u obje ispitne skupine. Kod starijih krava pad je iznosio 76,84%, a kod mlađih 14,63 %. Dobiveni rezultati upućuju na poboljšanje zdravstvenog statusa krava te na potencijal korištenja bolusa s bioaktivnim tvarima u intenzivnoj proizvodnji mlijeka.
Abstract (english)
The use of tablets with active substances as an alternative to the use of antibiotics is an increasingly common method of preventing mastitis in modern milk production. The slow release of active substances enables prolonged action of such medicine. The aim of this master' thesis was to determine the effectiveness of using tablets with bioactive substances such as niacinamide, inulin, salicin and antioxidants gingerols, shogaols, zingerone, on production parameters and health status of dairy cows. The research was conducted on a small family farm in central Istria. In the research participated 20 cows, divided into two groups according to age, and each cow had its own control cow. The milk of the treated cows was analyzed at the Centre for Quality Control of Livestock Products Križevci every 15 days for a period of 60 days from the application of the bolus. The statistical significance of the influence of age on the production of the daily amount of milk and the number of somatic cells in the milk of older cows was determined. The number of somatic cells, as an indicator of subclinical mastitis, fell in both test groups from the beginning to the end of the study. In older cows, the decrease was 76.84%, and in younger cows, it was 14.63%. The obtained results indicate the improvement of the health status of cows and the potential of using bolus with bioactive substances in intensive milk production.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:204:155600
Study programmeTitle: Animal Nutrition and Feed Science
Study programme type: university
Study level: graduate
Academic / professional title: magistar/ magistra inženjer/inženjerka hranidbe životinja i hrane (magistar/ magistra inženjer/inženjerka hranidbe životinja i hrane)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2022-11-03 10:14:17