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Author |
Schwarzenberger, F.; Mostl, E.; Bamberg, E.; Pammer, J.; Schmehlik, O. |
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Title |
Concentrations of progestagens and oestrogens in the faeces of pregnant Lipizzan, trotter and thoroughbred mares |
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Journal Article |
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Year |
1991 |
Publication |
Journal of reproduction and fertility. Supplement |
Abbreviated Journal |
J Reprod Fertil Suppl |
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Volume |
44 |
Issue |
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Pages |
489-499 |
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Keywords |
Animals; Estrogens/*analysis; Feces/*chemistry; Female; Gestational Age; Horses/*metabolism; Immunoenzyme Techniques; Labor, Obstetric; Pregnancy; Pregnancy, Animal/*metabolism; Pregnenes/analysis; Progestins/*analysis |
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Abstract |
Faecal samples were collected at weekly intervals from pregnant Lipizzan mares during Weeks 7-16 following mating and from Lipizzan, Trotter and Thoroughbred mares during the last 3 months of gestation. After parturition, samples were taken daily from the Thoroughbred mares for another 6 days. Non-pregnant mares served as controls. The concentrations of unconjugated oestrogens (Eg), 20 alpha-OH-progestagens (20 alpha-G) and 20 beta-OH-progestagens (20 beta-G) were measured by enzyme immunoassay. In the faeces of Lipizzan mares, immunoreactive progestagens were significantly (P less than 0.01) elevated above the levels in non-pregnant mares by Week 11, and Eg by Week 13 of pregnancy onwards. During the last 3 months of gestation, concentrations of Eg were significantly higher in Trotter mares than in Lipizzan and Thoroughbred mares. Concentrations of 20 alpha-G and 20 beta-G increased to maximal values in the last month of gestation. There was no significant difference among the 3 breeds with respect to 20 alpha-G but, during the 10 weeks before parturition, concentrations of 20 beta-G in the Lipizzan mares were significantly lower (P less than 0.05) than those in the Thoroughbred mares. They were also significantly lower than those of the Trotter mares during the last 4 weeks of gestation. After parturition, the concentrations of Eg and progestagens had declined to baseline values by Days 3 and 4 respectively. From these results we conclude that high concentrations of progestagens with 20 alpha- and 20 beta-hydroxyl groups are present in the faeces of pregnant mares, especially during the last month of gestation. |
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Address |
Institut fur Biochemie, Veterinary Medical University, Vienna, Austria |
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English |
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ISSN |
0449-3087 |
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Notes |
PMID:1795293 |
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Call Number |
refbase @ user @ |
Serial |
322 |
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Author |
Weik, H.; Altmann, H.J. |
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Title |
[Behavior of blood lipids during fasting in the horse] |
Type |
Journal Article |
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Year |
1971 |
Publication |
Zentralblatt fur Veterinarmedizin. Reihe A |
Abbreviated Journal |
Zentralbl Veterinarmed A |
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Volume |
18 |
Issue |
2 |
Pages |
131-138 |
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Keywords |
Adipose Tissue/metabolism; Animals; Chromatography, Gas; Fasting/*veterinary; Fatty Acids/blood/metabolism; Fatty Acids, Nonesterified/blood; Horses/*metabolism; Lipids/*blood |
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German |
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Original Title |
Das Verhalten einiger Blutlipide wahrend des Hungerns beim Pferd |
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0514-7158 |
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Notes |
PMID:4995835 |
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Call Number |
refbase @ user @ |
Serial |
134 |
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Author |
Weik, H.; Lingk, W.; Altmann, H.J. |
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Title |
[Behavior of individual fatty acids during in-vitro lipolysis and resynthesis in equine depot fat] |
Type |
Journal Article |
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Year |
1972 |
Publication |
Zentralblatt fur Veterinarmedizin. Reihe A |
Abbreviated Journal |
Zentralbl Veterinarmed A |
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Volume |
19 |
Issue |
8 |
Pages |
677-685 |
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Keywords |
Adipose Tissue/*metabolism; Animals; Fatty Acids/*metabolism; Fatty Acids, Nonesterified/metabolism; Horses/*metabolism; Triglycerides/metabolism |
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Language |
German |
Summary Language |
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Original Title |
Das Verhalten der einzelnen Fettsauren wahrend der Lipolyse und Resynthese im Pferdepotfett in vitro |
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0514-7158 |
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Notes |
PMID:4628723 |
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Call Number |
refbase @ user @ |
Serial |
131 |
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