Sökning: "sperm quality analysis"

Visar resultat 6 - 10 av 19 uppsatser innehållade orden sperm quality analysis.

  1. 6. Genetic diversity status and associations with sperm quality characteristics in farmed Arctic charr (Salvelinus alpinus L.) across Sweden

    Master-uppsats, SLU/Dept. of Animal Breeding and Genetics

    Författare :Anam Anjum; [2020]
    Nyckelord :Arctic charr; dd-RADseq; genetic diversity; GWAS; reproductive success;

    Sammanfattning : The national breeding programme of Arctic charr (Salvelinus alpinus L.) has been of fundamental importance for the expansion of Arctic charr farming across Sweden. Selection has been ongoing since 1980s documenting approximately 10% improvement per generation regarding growth related traits. LÄS MER

  3. 7. The effect of the natural antioxidants catalase and epigallocatechin added after thawing on the quality of dromedary camel spermatozoa

    Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Clinical Sciences

    Författare :Johanna Grundin; [2018]
    Nyckelord :Camel semen; cryopreservation; antioxidants; reactive oxygen species; sperm quality analysis;

    Sammanfattning : The objective of this study was to evaluate the effect of adding two natural antioxidants (Catalase and Epigallocatechin) to the thawing media on the quality of cryopreserved dromedary camel spermatozoa post-thaw. Also, an indirect measure of ROS production was performed by measuring malondialdehyde (MDA) production (a product of oxidative damage) post-thaw. LÄS MER

  4. 8. Effect of freezing and thawing rates on camel sperm quality

    Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Clinical Sciences

    Författare :Bodil Elwing; [2017]
    Nyckelord :Camel semen; cryopreservation; freezing rate; thawing temperature; motility analysis;

    Sammanfattning : The objective of this study was to evaluate the effect of different freezing rates and thawing temperatures on the quality of camel spermatozoa post thawing. Ten ejaculates from five male camels were frozen at five different freezing rates, achieved by placing the straws at specific heights above the surface of liquid nitrogen for different times (4 cm for 15 min; 1 cm for 15 min; 7 cm for 15 min; 7 cm for 5 min + 4 cm for 3 min; 4 cm for 5 min + 1 cm for 3 min) followed by storage in liquid nitrogen. LÄS MER

  5. 9. Reproduktionsstörande ftalater i hundleksaker på den svenska marknaden

    Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Clinical Sciences

    Författare :Sandra Nohrborg; [2015]
    Nyckelord :ftalater; hundleksaker; reproduktionstoxicitet; reproduktion; antiandrogena substanser; endokrinstörande ämnen;

    Sammanfattning : Ftalater är benämningen på en grupp kemikalier som används som mjukgörare i olika material. Ett av de vanligaste användningsområdena är som mjukgörare i polyvinylplast (PVC) vilket är ett material som används till många produkter, till exempel leksaker. LÄS MER

  7. 10. Correlation between sperm oxidative stress and sperm DNA damage in subfertile men

    Master-uppsats, Lunds universitet/Läkarutbildningen

    Författare :Bitte Bergström; Sofia Jarkman; [2013]
    Nyckelord :Medicine and Health Sciences;

    Sammanfattning : ABSTRACT Background: Approximately 15 % of all couples in the Western countries experience infertility. Up to half of these cases are thought to solely or partly depend upon the male factor. In most cases male infertility is unexplained. During the last decade there has been a growing focus on sperm DNA damage as a cause of male infertility. LÄS MER