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Tresholds of blood variables obtained by receiver operating characteristic analysis for indication of fat and glycogen content in the liver of postpartum dairy cows

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2020
1822.pdf (1.287Mb)
Authors
Podpecan, Ozbalt
Zrimsek, Petra
Mrkun, Janko
Golicnik, Marko
Radovanović, Anita
Jovanović, Ljubomir
Vujanac, Ivan
Prodanović, Radiša
Kirovski, Danijela
Article (Published version)
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Abstract
The objective was to determine optimal thresholds of blood variables that are associated with liver lipid and glycogen content in dairy cows. Liver specimens of 15 Holstein dairy cows were taken 2 weeks postpartum (PP) and used for determination of lipid and glycogen content, respectively. Blood samples were collected weekly, starting from week 2 antepartum (AP) up to week 2 PP. Selected blood parameters and body condition scoring (BCS) were evaluated through receiver operating characteristic curve analysis as indication of fat and glycogen content in the liver. Postpartal low liver glycogen content (mode < 2.0, semiquantitative analysis of glycogen content in the liver tissue samples) can be indicated if values are higher than 0.16 mmol/L, and 3.5 mmol/L for NEFA, and glucose, respectively, and lower than 0.65 mmol/L and 17.94 mu U/mL for BHBA and insulin, respectively, 2 weeks AP. Postaprtal high liver fat content (>20%, stereological quantification of fat content in the liver tissue... samples) can be indicated if values are higher than 3.5 for BCS at week 2 AP. Optimal time for indicating both low liver glycogen/high fat content is 1 week PP, with LDL < cut off point set at 0.18 mmol/L and BHBA > cut off point set at 0.88 mmol/L. Established cut off values in this study can be used for indication of fat and glycogen content in the liver of dairy cows.

Keywords:
Bovine liver / fat / glycogen / indication
Source:
Italian Journal of Animal Science, 2020, 19, 1, 303-309
Publisher:
  • Taylor & Francis Ltd, Abingdon
Projects:
  • Molecular genetic and ecophysiological researches on the protection of autochthonous animal genetic resources, sustaining domestic animals’ welfare, health and reproduction, and safe food production (RS-46002)
  • Slovenian Research AgencySlovenian Research Agency - Slovenia [P4-0053]

DOI: 10.1080/1828051X.2020.1740064

ISSN: 1594-4077

WoS: 000519986000001

Scopus: 2-s2.0-85081902186
[ Google Scholar ]
URI
http://vet-erinar.vet.bg.ac.rs/handle/123456789/1823
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  • Radovi istraživača / Researcher's publications
Institution
Fakultet veterinarske medicine

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