diplomsko delo
Melita Sinjur (Author), Aleš Kuhar (Reviewer), Marija Klopčič (Mentor)

Abstract

Rejci krav molznic se zaradi vse bolj intenzivne prireje mleka soočajo z vse večjim tveganjem za pojav bolezni. Da povečajo odpornost in plodnost živali, so pomembni predvsem preventivni ukrepi in pravilno vodenje prireje z ustreznim vrednotenjem rezultatov, pri čemer jim je v pomoč vodenje evidence reprodukcijskih dogajanj v čredi. V letu 2020 opažamo, da so bili najpogostejši razlogi za izločitev krav molznic plodnostne motnje (31 %), sledijo bolezni parkljev in nog (13,7 %), mastitis (7,5 %) in povečano število somatskih celic (5,2%). V drugem delu diplomske naloge smo analizirali podatke o mlečnosti in plodnosti krav molznic na kmetiji Sinjur za obdobje od leta 2010 do 2021. Število molznic se je v tem času gibalo med 17 in 21. Povprečna mlečnost v 305-dneh se je gibala med 6.189 kg mleka leta 2021 in 4.003 kg mleka leta 2011. Doba med telitvama se je v povprečju gibala med 392 dni leta 2010 in 533 dni leta 2021. Najpogostejši vzroki za izločitev krav iz črede na kmetiji Sinjur so bile plodnostne motnje, bolezni in poškodbe parkljev in nog ter bolezni vimena. Največji delež izločenih krav zaradi plodnostnih motenj je bil leta 2011 in 2021, zaradi bolezni in poškodb parkljev in nog pa leta 2018 in 2021.

Keywords

govedo;krave molznice;reprodukcija;težave;rešitve;diplomske naloge;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL BF - Biotechnical Faculty
Publisher: [M. Sinjur]
UDC: 636.2.09(043.2)
COBISS: 122928899 Link will open in a new window
Views: 10
Downloads: 1
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Other data

Secondary language: English
Secondary title: Reproductive problems in dairy cows and possible solutions
Secondary abstract: Due to increasingly intensive milk production, dairy cow breeders face an increasing risk of disease. To increase animal resistance and fertility, preventive measures and proper management of milk production with proper evaluation of milk recording results are important and keeping records of reproductive events in the herd is helpful. In 2020, we found that the most common reasons for culling dairy cows were fertility problems (31%), followed by hoof and leg diseases (13.7%), mastitis (7.5%), and increased somatic cell count (5.2%). In the second part of the paper, we analysed milk recording data on milk yield and fertility of dairy cows on Sinjur farm for the period from 2010 to 2021. The number of dairy cows varied from 17 to 21 during this period, and the average milk yield in 305 days varied from 6,189 kg of milk in 2021 to 4,003 kg of milk in 2011. The calving interval varied on average from 392 days in 2010 to 533 days in 2021. The most common reasons for cows leaving the herd on the Sinjur farm were fertility problems, hoof diseases, hoof and leg injuries, and udder diseases. The largest proportion of cows culled due to fertility problems was in 2011 and 2021, and due to hoof diseases and hoof and leg injuries in 2018 and 2021.
Secondary keywords: cattle;dairy cows;reproduction;problems;solutions;
Type (COBISS): Bachelor thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Biotehniška fak., Oddelek za zootehniko
Pages: 1 spletni vir (1 datoteka PDF (VIII, 25 str.))
ID: 16534344