Bruce effect competence in yellow-lethal heterozygous mice
| Autor: | Seymour Kessler, Sara A. Gerling, S. L. Blum, R. Kakihana, Lucy B. Ellis |
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| Rok vydání: | 1974 |
| Předmět: |
Male
Embryology media_common.quotation_subject Male mice Mice Inbred Strains Bruce effect Biology Pheromones Andrology Mice Endocrinology Estrus Species Specificity Pregnancy Genotype Copulation medicine Animals Embryo Implantation Fallopian Tubes media_common Ovum Estrous cycle Reproduction Obstetrics and Gynecology Cell Biology medicine.disease Reproductive Medicine Sex pheromone Immunology Mice Inbred CBA Female |
| Zdroj: | Journal of reproduction and fertility. 40(2) |
| ISSN: | 0022-4251 |
| Popis: | The capacity of heterozygous yellow-lethal (Aya) and brown (aa) male mice to induce the Bruce effect was investigated. The proportion of SJL/J females showing a failure of implantation when exposed to males of either genotype was 80 %, whereas only 20 % of the control females not so exposed showed pregnancy failure. One-half of the females whose pregnancy had been blocked as a result of exposure to either the Aya or aa male mice (50 % and 55 %, respectively) ovulated within 7 to 8 days after the initial mating. Results are discussed in regard to the hypothesis that the neuroendocrine mechanisms involved in pregnancy blocking and synchrony of oestrus are not qualitatively different. |
| Databáze: | OpenAIRE |
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