Essays about: "spermatozoa"

Showing result 1 - 5 of 38 essays containing the word spermatozoa.

  1. 1. Microfluidic sorting of sperm for assisted reproduction - An evaluation of ZyMōt multi sperm separation device

    University essay from Göteborgs universitet / Instiutionen för biologi och miljövetenskap

    Author : Emma Olofsson; [2023-06-22]
    Keywords : Assisted reproduction technologies Spermatozoa DNA fragmentation Density-gra- dient centrifugation Microfluidics ZyMōt Multi;

    Abstract : Infertility is a worldwide problem and the main reason for the use of assisted reproductive technol- ogy (ART). In-vitro fertilization (IVF) is one ART treatment normally used, where the fertilization of oocytes occurs in vitro. READ MORE

  3. 2. Use of a Sperm-Hyaluronan Binding Assay for evaluation of sperm quality in dromedary camels

    University essay from SLU/Dept. of Clinical Sciences

    Author : Anna Kotila-Ioannou; [2022]
    Keywords : Camel Semen; Dromedary camel; Sperm-Hyaluronan Binding Assay; sperm quality analysis;

    Abstract : The objective of this study was to assess the potential of Hyaluronan Binding Assay (HBA) to predict freezability and fertilization capacity of dromedary camel spermatozoa, and to determine if conventional sperm quality parameters and precursor of A-Kinase Anchoring Protein 4 (proAKAP4) values correlate with HBA results. Two semen samples were collected from each of six male camels. READ MORE

  4. 3. Effects of melatonin and Single Layer Centrifugation on cryosurvival of ram semen samples

    University essay from SLU/Dept. of Clinical Sciences

    Author : Lea Enenkelová; [2021]
    Keywords : sheep reproduction; Jezersko-Solčava sheep breed; colloid centrifugation; melatonin;

    Abstract : The composition of the ram sperm membrane renders it vulnerable to injury during cryopreservation. Production of reactive oxygen species, which are by-products of metabolism, increases during freezing and thawing, causing damage to sperm membranes and acrosomes as well as affecting mitochondrial activity. READ MORE

  5. 4. The influence of antimicrobial agents on the development of antibiotic resistance in the vaginal bacterial flora of artificially inseminated mares : a study on mares in a stud environment

    University essay from SLU/Dept. of Clinical Sciences

    Author : Elin Wilén; [2021]
    Keywords : antibiotics; antimicrobial resistance; bacteriology; breeding; equine reproduction; reproductive techniques; semen extender; stud farm;

    Abstract : In Sweden and in many other countries, artificial insemination (AI) is frequently used in horse breeding. The technology makes it possible to use genetic material from horses in different geographical locations in an effective way, minimizing the risk of infection or even injury to both horses and stud personnel. READ MORE

  6. 5. Effekt av tid mellan avlivning och spermieextraktion : om spermiekvalitet hos tjurens bitestikelspermier

    University essay from SLU/Dept. of Clinical Sciences

    Author : Alexandra Walfridsson; [2021]
    Keywords : tjur; bitestikel; motilitet; spermier; post mortem;

    Abstract : Uppsamling av spermier från bitestikeln post mortem är en bra teknik för att bevara viktigt genetiskt material från individer som är värdefulla ur avelssynpunkt och/ eller vilda djur. Djur dör dock inte nödvändigtvis i nära anslutning till ett laboratorium med rätt utrustning och resurser för att ta till vara materialet. READ MORE