Evaluation of models to induce low progesterone during the early luteal phase in cattle
| Autor: | Niamh Forde, Mark A. Crowe, Patrick Lonergan, James F. Roche, Marijke Eileen Beltman |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
medicine.medical_specialty
Luteolysis Low progesterone Luteal phase Biology Luteal Phase Insemination Dinoprost Andrology Corpus luteum Food Animals Corpus Luteum Pregnancy Internal medicine medicine Conceptus Animals Embryo survival Small Animals Survival rate Progesterone Estrous cycle Heifers Equine Organ Size medicine.disease Administration Intravaginal medicine.anatomical_structure Endocrinology Animal Science and Zoology Cattle Female |
| Popis: | Two experiments were designed to evaluate models for generation of low circulating progesterone concentrations during early pregnancy in cattle. In Experiment 1, 17 crossbred heifers (Bos taurus) were assigned to either prostaglandin F(2alpha) (PGF(2alpha)) administration on Days 3, 3.5, and 4 (PG3; n=9) or to control (n=8). Blood samples were collected from heifers from Days 1 to 9 for progesterone assay. Progesterone concentrations were decreased (P |
| Databáze: | OpenAIRE |
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