Sökning: "Frozen-thawed sperm"
Hittade 3 uppsatser innehållade orden Frozen-thawed sperm.
1. Effects of melatonin and Single Layer Centrifugation on cryosurvival of ram semen samples
Master-uppsats, SLU/Dept. of Clinical SciencesSammanfattning : 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. LÄS MER
2. The effect of antioxidants on motility, viability, acrosome integrity and DNA integrity of post-thaw epididymal cat spermatozoa
L3-uppsats, SLU/Dept. of Clinical SciencesSammanfattning : Living cells stored under aerobic conditions require oxygen (O2) to support their metabolism. Their metabolite products are reactive oxygen species (ROS). In general, the ROS need to be continuously inactivated to keep a minimal amount necessary to maintain normal cell function but an excessive accumulation can cause cell damage. LÄS MER
3. Deep freezing of concentrated boar semen for intra-uterine insemination
L3-uppsats, SLU/Dept. of Clinical SciencesSammanfattning : Frozen-thawed (FT) boar semen for artificial insemination (AI) in commercial pig production is still only used in exceptional cases, mostly for incorporation of top genetics. Low sperm survival after a freezing procedure that is still considered suboptimal, which results in low farrowing rates and small litter sizes when conventional cervical AI is performed, are among the reasons why FT boar semen is rarely used in AI. LÄS MER