20.500.12556/DKUM-97852 Spremljanje zdravstvenega stanja mlečne žleze krav molznic in priprava načrta sanacije problematike diplomsko delo Udder Health Monitoring in Dairy Cow Farm and Development of Mastitis Prevention and Control Plan Cilj diplomskega dela je bila identifikacija povzročiteljev mastitisa z mikrobiološko preiskavo vzorcev mleka ter ustrezna oskrba okuženih živali na podlagi etiološke diagnoze. Informacije, pridobljene s spremljanjem rezultatov mlečnih analiz kontrol in izvidov mikrobioloških preiskav vzorcev mleka, so bile osnova za načrtovanje ukrepov za izboljšanje zdravstvenega stanja mlečne žleze in posledično zmanjšanje števila somatskih celic v mleku. V poskus je bilo skupno vključenih 67 različnih krav molznic. Vzorci za mikrobiološke preiskave mleka so bili odvzeti februarja, junija, avgusta in oktobra 2024. Skupaj je bilo v štirih terminih izvedenih 189 vzorčenj, kjer pod izrazom vzorčenje pojmujemo izvid mikrobiološke preiskave posamezne živali, za katere smo odvzeli vzorce iz vsake vimenske četrti posebej. Statistična analiza podatkov je bila usmerjena v primerjavo okuženih in neokuženih krav molznic. Analizirano je bilo število somatskih celic (ŠSC) v mleku, količina prirejenega mleka ter vsebnost maščob, beljakovin in laktoze v mleku. Ugotovljeno je bilo, da je bilo 143 vzorčenj negativnih, pozitivnih pa 46. Najpogosteje je bila ugotovljena bakterija Streptococcus uberis (S. uberis). Živali, katerih vzorci mleka so bili negativni, so imele bistveno manjše ŠSC v mleku in večjo prirejo mleka. Vsebnost maščob, beljakovin in laktoze v mleku se med okuženimi in neokuženimi živalmi ni razlikovala. Primerjava rezultatov mlečnih kontrol v letih 2023 in 2024 je pokazala, da je bil delež krav z manjšim ŠSC v letu 2024 večji. Zdravljenje prizadetih krav je bilo izvedeno na podlagi anamneze, klinične slike, izvidov mikrobioloških preiskav, antibiogramov in strokovne presoje veterinarja. Krave, katerih zdravljenje glede na anamnezo in klinično sliko ni bilo mogoče ali ni bilo smiselno, so bile izločene. The aim of the thesis was to identify the causative agents of mastitis through a microbiological examination of milk samples and to provide appropriate care for infected animals based on an etiological diagnosis. The information obtained from the milk sample analysis control and microbiological examination, served as the basis for planning measures to improve mammary gland health and consequently reduce the number of somatic cells in milk. A total of 67 different dairy cows were included in the experiment. The samples were collected in February, June, August, and October 2024. In total, 189 samplings were conducted across four periods, with each sampling referring to the results of the microbiological examination of an individual animal, for which samples were taken separately from each udder quarter. A statistical analysis of the data was conducted to compare the infected and uninfected dairy cows. The number of somatic cells (SC) in the milk, the amount of processed milk, and the content of fat, protein, and lactose in the milk were analyzed. 143 samples were negative and 46 were positive. The most frequently detected bacterium was Streptococcus uberis (S. uberis). Animals with a negative milk sample had a significantly lower SC in their milk and higher milk production. The milk fat, protein, and lactose did not differ between infected and uninfected animals. A comparison of milk control results from 2023 and 2024 showed that the proportion of cows with a lower SC was higher in 2024. The treatment of the affected cows was based on anamnesis, clinical presentation, results of microbiological tests, antibiograms, and the professional judgment of a veterinarian. Cows, for which treatment was not possible or not justified based on anamnesis and clinical presentation, were culled. zdravstveno stanje mlečne žleze povzročitelji mastitisa sanacija zdravstvenega stanja mlečne žleze mammary gland health mastitis causative agents rehabilitation of mammary gland health true true false J. Lovrec Slovenski jezik Angleški jezik Diplomsko delo/naloga 2026-04-20 13:33:28 2026-06-01 14:24:54 2026-06-03 03:14:29 0000-00-00 00:00:00 2026 0 Maribor 0 Maribor 1 spletni vir (1 datoteka PDF (X, 19, [26] str.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 636.2.082.32:636.09(043.2)=163.6 280036099 VS_Lovrec_Jan_2026.pdf VS_Lovrec_Jan_2026.pdf 1 9C732FFA785B1B1D0AAF8434CDACC945 9c1494ba828732baaaee817b0a85b38a3548f71d96dd48cd649edb710ff62b6a 26013498-479a-11f1-89cf-00155d0001a1 https://dk.um.si/Dokument.php?lang=slv&id=205716 Fakulteta za kmetijstvo in biosistemske vede 0 0 0