Article (Scientific journals)
Analysis of progesterone and estrone-sulfate in feces of American Bison using liquid chromatography coupled to mass spectrometry: Technical validation and correlation with blood levels
Dufour, Patrice; Frisee, Vincent; Rigaux, Goulven et al.
2024In Domestic Animal Endocrinology, 86, p. 106819
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Keywords :
Endocrinology; Animal Science and Zoology; pregnancy; Bison Bison; pregnancy diagnosis; feces; wild animals
Abstract :
[en] American Bison’s wild nature limits blood sample availability to study its endocrinology. This report describes progesterone (P4) and estrone-sulfate (E1S) assays in American Bison feces using Liquid Chromatography coupled with Mass Spectrometry (LC-MS). In 2 ranches, samples of feces (n = 73) and serum (n = 93) were collected in pregnant and nonpreg- nant American Bison. Feces samples (250 mg) were extracted with methanol, purified, and concentrated. Then, feces and serum samples were assayed using LC-MS, according to our previously described technique. Fecal matrix homogeneity was determined by measuring steroids in different areas of the sample and concentration evolutions were evaluated after storage at room temperature. During the validation process, lower limits of quantification were 20 pg/g (E1S) and 4 ng/g (P4) by meeting the following criteria: relative standard de- viation <15% and relative bias <15%. By measuring hormones in different spots from the same sample, a moderate variability for E1S (coefficient of variation [CV] up to 21.3%) and a high variability for P4 (CV up to 85.5%) were highlighted. Correlation between concen- trations in feces and in serum was higher for E1S (r = 0.77) than for P4 (r = 0.65) and P4 could be assayed in pregnant and nonpregnant animals whereas E1S was only present in pregnant. Feces storage at room temperature induced modification of steroid concen- trations. The quantification of E1S and, at a lower level, of P4 in feces is an interesting alternative to serum assay to describe the pregnancy-related evolution of these steroids in American Bisons, with feces ideally stored frozen and mixed before the LC-MS procedures.
Research center :
FARAH. Médecine vétérinaire comparée - ULiège [BE]
Disciplines :
Veterinary medicine & animal health
Zoology
Author, co-author :
Dufour, Patrice ;  Centre Hospitalier Universitaire de Liège - CHU > > Service de toxicologie clinique, médicolégale, environnementale et en entreprise
Frisee, Vincent  ;  Université de Liège - ULiège > Département d'Enseignement et de Clinique des animaux de Production (DCP)
Rigaux, Goulven;  Pan Anima, Tournai
Brutinel, Flore ;  Université de Liège - ULiège > Fundamental and Applied Research for Animals and Health (FARAH) > FARAH: Médecine vétérinaire comparée
Egyptien, Sophie  ;  Université de Liège - ULiège > Fundamental and Applied Research for Animals and Health (FARAH)
Bossaert, Philippe ;  Université de Liège - ULiège > Fundamental and Applied Research for Animals and Health (FARAH) > FARAH: Productions animales durables
DELEERSNYDER, Jessica ;  Centre Hospitalier Universitaire de Liège - CHU > > Service de chimie clinique
Deleuze, Stefan  ;  Université de Liège - ULiège > Fundamental and Applied Research for Animals and Health (FARAH) > FARAH: Médecine vétérinaire comparée
Peeters, Stéphanie ;  Centre Hospitalier Universitaire de Liège - CHU > > Service de chimie clinique
Le Goff, Caroline  ;  Centre Hospitalier Universitaire de Liège - CHU > > Service de chimie clinique
Ponthier, Jérôme ;  Université de Liège - ULiège > Fundamental and Applied Research for Animals and Health (FARAH) > FARAH: Médecine vétérinaire comparée
Cavalier, Etienne  ;  Centre Hospitalier Universitaire de Liège - CHU > > Service de chimie clinique
Language :
English
Title :
Analysis of progesterone and estrone-sulfate in feces of American Bison using liquid chromatography coupled to mass spectrometry: Technical validation and correlation with blood levels
Publication date :
January 2024
Journal title :
Domestic Animal Endocrinology
ISSN :
0739-7240
eISSN :
1879-0054
Publisher :
Elsevier BV
Volume :
86
Pages :
106819
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 20 October 2023

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