Essays about: "acrosome"
Showing result 1 - 5 of 9 essays containing the word acrosome.
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1. Use of a Sperm-Hyaluronan Binding Assay for evaluation of sperm quality in dromedary camels
University essay from SLU/Dept. of Clinical SciencesAbstract : 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
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2. Effects of melatonin and Single Layer Centrifugation on cryosurvival of ram semen samples
University essay from SLU/Dept. of Clinical SciencesAbstract : 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
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3. Effect of seminal plasma on the acrosome status of cryopreserved stallion spermatozoa
University essay from SLU/Dept. of Clinical SciencesAbstract : Today breeding through artificial insemination (AI) with cryopreserved semen is frequently used in several domestic species, but its use is more problematic in horses, partly because of reduced sperm quality and partly because the timing of insemination relative to ovulation is more crucial for frozen semen than for fresh. Therefore, improvements in the freezing technique are needed. READ MORE
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4. The effect of the natural antioxidants catalase and epigallocatechin added after thawing on the quality of dromedary camel spermatozoa
University essay from SLU/Dept. of Clinical SciencesAbstract : 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. READ MORE
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5. Effect of freezing and thawing rates on camel sperm quality
University essay from SLU/Dept. of Clinical SciencesAbstract : 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. READ MORE
