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dc.contributor.authorFalta, Daniel
dc.contributor.authorZapletalová, Lenka
dc.contributor.authorHanuš, Oto
dc.contributor.authorKučera, Josef
dc.contributor.authorVečeřa, Milan
dc.contributor.authorChládek, Gustav
dc.contributor.authorFilipčík, Radek
dc.contributor.authorKopec, Tomáš
dc.contributor.authorLategan, Francois Stefanus
dc.date.accessioned2024-02-01T01:03:18Z
dc.date.available2024-02-01T01:03:18Z
dc.date.issued2023
dc.identifier.issn1212-1819 Sherpa/RoMEO, JCR
dc.identifier.urihttps://repozitar.mendelu.cz/xmlui/handle/20.500.12698/1836
dc.description.abstractThe aim of this study was to improve the understanding of the contribution of components typically found in milk, but which are not often included in analyses, to the nutritional status of dairy cows. This was undertaken by analysing the amount and composition of milk produced by Simmental dairy cows, a dual-purpose breed farmed in the Czech Republic. Apart from the more frequently analysed group of components in milk, a less frequently analysed group of components were also investigated. This group, typically, consists of the following components: urea, casein, citric acid, beta hydroxy butyrate (BHB) ketones and free fatty acids. The average content of urea, casein and citric acid in milk is 25.75 mg/100 ml, 2.96%, 0.15%, respectively. The influence of environmental factors on these indicators was evaluated, as well as the degree of hereditary establishment. These less frequently analysed components (indicators), as well as the more frequently analysed components of milk, are subject to several external influences, especially the influence of the breeder, the year and the season of calving. The content of these components varied significantly statistically during the lactation period and also in the order of lactation. The influence of a cow's individuality and the degree of additive genetic background are evident, with estimated heritability coefficients ranging from 0.04 for the BHB ketone content to higher values, e.g., 0.28 for citric acid or 0.31 for the lactose content in milk. The relationships between the components of milk and the daily milk yield were also evaluated, and statistically significant negative correlations were found between the content of casein and the daily milk yield (-0.47) and between the lactose content and the number of somatic cells (-0.37).en
dc.format99-110
dc.publisherČeská akademie zemědělských věd
dc.relation.ispartofCzech Journal of Animal Science
dc.relation.urihttps://doi.org/10.17221/197/2022-CJAS
dc.rightsCC BY-NC 4.0
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.subjectCzech Fleckviehen
dc.subjectdairyen
dc.subjectheritabilityen
dc.subjectparityen
dc.subjectcalving seasonen
dc.titleThe interaction between the milk production, milk components with a low frequency of analysis and factors affecting the milk composition in dual-purpose Simmental cowsen
dc.typeJ_ČLÁNEK
dc.date.updated2024-02-01T01:03:18Z
dc.description.versionOA
local.identifier.doi10.17221/197/2022-CJAS
local.identifier.wos000954550700001
local.number3
local.volume68
local.identifier.obd43924637
local.identifier.e-issn1805-9309
dc.identifier.orcidFalta, Daniel 0000-0002-7679-923X
dc.identifier.orcidZapletalová, Lenka 0000-0002-8990-7076
dc.identifier.orcidVečeřa, Milan 0000-0002-3363-0717
dc.identifier.orcidChládek, Gustav 0000-0002-4223-0934
dc.identifier.orcidFilipčík, Radek 0000-0002-5376-5061
dc.identifier.orcidKopec, Tomáš 0000-0003-2446-0952
dc.identifier.orcidLategan, Francois Stefanus 0000-0002-8802-1417
local.contributor.affiliationAF
local.contributor.affiliationFRRMS


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Zobrazit minimální záznam

CC BY-NC 4.0
Kromě případů, kde je uvedeno jinak, licence tohoto záznamu je CC BY-NC 4.0