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Showing result 1 - 5 of 31 swedish dissertations matching the above criteria.
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1. Same, same but different : lesbian couples undergoing sperm donation
Abstract : Introduction: The desire to have children and form a family is for many people central for life fulfilment and the desire does not differ by sexual orientation. Due a series of societal changes during the last decade, today we see a lesbian baby boom. READ MORE
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2. EXPOSURE TO PERSISTENT ORGANOCHLORINE POLLUTANTS AND MALE SEMEN FUNCTION
Abstract : Persistent organochlorine pollutants (POPs), such as polychlorinated biphenyls (PCB) and the insecticide dichloro-diphenyl-dichloro-ethylene (DDT) have been released into the environment mainly since the second World War. POPs accumulate especially in highly ranked predators of the aquatic food chain. READ MORE
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3. Choice, competition, and interactions between episodes of sexual selection
Abstract : Choice and competition are essential parts of evolutionary biology. In an effort to pass their genes from one generation to the next, animals may carefully choose their mating partners, and/or compete for access to mates. READ MORE
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4. Gonad and ejaculate allocation in alternative reproductive tactics of salmon and trout with reference to sperm competition
Abstract : Atlantic salmon, Salmo salar L., and brown trout, Salmo trutta L., exhibit alternative male maturation phenotypes, anadromous and precociously mature parr, which commonly endure in sperm competition at the spawning grounds. READ MORE
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5. Epididymal and accessory sex gland function and semen quality
Abstract : Infertility, defined as the inability to conceive after one year of unprotected regular intercourse, affects up to 15% of all couples of reproductive age. The infertility can originate from female, male or both partners. In up to 50% of the affected couples, a male factor is the cause of infertility. READ MORE