Thyroid Hormones Concentrations during the Mid-Dry Period : An Early Indicator of Fatty Liver in Holstein-Friesian Dairy Cows
Joint Authors
Šamanc, Horea
Kirovski, Danijela
Jovanović, Milijan
Cernescu, Horia
Stojić, Velibor
Vujanac, Ivan
Source
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-02-10
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Relationship between postpartal fatty liver and thyroid gland activity during the peripartal and mid dry periods was studied.
Twenty one dry cows were chosen.
Blood samples were obtained on days −30, −2, and +12 related to calving and analized for thyroxine (T4) and triiodothyronine (T3).
A T3/T4 ratio was calculated.
Liver tissue samples were taken 12 d after calving and tested for the lipid content.
Cows were divided into three groups: mild (<20% fat), moderate (20 to 30%), or severe fatty liver (>30%).
Cows, that were affected with severe fatty liver, were hypothyroid prior to development of the condition due to lower T4 concentrations, and had significantly lower concentration of T3 and higher T3/T4 ratios than cows with mild and moderate fatty liver.
Thus, hypothyroid state during mid-dry period may be an early indicator of postpartal fatty liver and may provoke T3/T4 ratio increase in this group of cows.
American Psychological Association (APA)
Šamanc, Horea& Stojić, Velibor& Kirovski, Danijela& Jovanović, Milijan& Cernescu, Horia& Vujanac, Ivan. 2010. Thyroid Hormones Concentrations during the Mid-Dry Period : An Early Indicator of Fatty Liver in Holstein-Friesian Dairy Cows. Journal of Thyroid Research،Vol. 2010, no. 2010, pp.1-6.
https://search.emarefa.net/detail/BIM-506403
Modern Language Association (MLA)
Šamanc, Horea…[et al.]. Thyroid Hormones Concentrations during the Mid-Dry Period : An Early Indicator of Fatty Liver in Holstein-Friesian Dairy Cows. Journal of Thyroid Research No. 2010 (2010), pp.1-6.
https://search.emarefa.net/detail/BIM-506403
American Medical Association (AMA)
Šamanc, Horea& Stojić, Velibor& Kirovski, Danijela& Jovanović, Milijan& Cernescu, Horia& Vujanac, Ivan. Thyroid Hormones Concentrations during the Mid-Dry Period : An Early Indicator of Fatty Liver in Holstein-Friesian Dairy Cows. Journal of Thyroid Research. 2010. Vol. 2010, no. 2010, pp.1-6.
https://search.emarefa.net/detail/BIM-506403
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-506403