Direct estimation of urine estrone conjugate for a rapid pregnancy diagnosis in sows
| Autor: | Carlo Tamanini, Mauro Mattioli, Eraldo Seren, R. Gaiani |
|---|---|
| Rok vydání: | 1983 |
| Předmět: |
Litter (animal)
medicine.medical_specialty Pregnancy Equine business.industry media_common.quotation_subject Radioimmunoassay Large white Urine medicine.disease Insemination Urination Estrone Conjugate Endocrinology Animal science Food Animals Internal medicine Medicine Animal Science and Zoology Small Animals business media_common |
| Zdroj: | Theriogenology. 19:817-822 |
| ISSN: | 0093-691X |
| DOI: | 10.1016/0093-691x(93)90325-y |
| Popis: | A rapid and direct radioimmunoassay of urine estrone conjugate (E 1 C) was developed. Urine samples were taken from Large White sows by inserting sponges in the vagina which were expelled during micturition. Analysis of samples collected daily from 13 sows between 2 and 40 days after service showed that high urine E 1 C levels occurred between day 20 and 30 after insemination in pregnant sows; maximum concentrations were observed on day 25 (79.4 ± 11.7 ng/ml, X ± s.e.m. ). In this period E 1 C levels never exceeded 1 ng/ml in nonpregnant sows. A single urine sample was then taken from 84 sows, 25 days after insemination, to check the accuracy of E 1 C estimation as a test for early pregnancy diagnosis. Seventy-six of the examined animals were correctly diagnosed, giving an overall accuracy of 90.4%. No relationship was found between litter size and urine E 1 C levels. |
| Databáze: | OpenAIRE |
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