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Showing 1 to 8 of 8 for “"frozen semen"”.
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Evaluation of Different Concentrations of Egg Yolk in Canine Frozen Semen Extender
… > 70% and normal morphology > 60% was used. Semen was collected and pooled for five freezing trials. The concentrations of egg yolk used in the extender were: 0%, 10%, 20%, 30% and 40%. Assessment of each sample was blinded to the treatments until all results were obtained and statistics had …
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Effect of high and low dosage of fresh and frozen semen on accessory sperm number, fertility and embryo quality in artificially inseminated cattle
… to : 1) Determine the effects of fresh vs frozen semen at a high inseminate dosage (lOOxl06sperm) contrasted to their effects at a conventional dosage (20xl06 sperm) on accessory sperm per ovum and 2) Evaluate the relationship between accessory sperm number per embry%vum and fertilization …
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Evaluation of the impact of reproductive technologies on the genetic improvement and profit of pig production systems
… The impact of artificial insemination technique, semen preparation, and selection for semen traits on profitability and complementary financial indicators was evaluated under a comprehensive range of productive and reproductive circumstances. Net profit was 2.2% to 2.6% higher in intra-uterine and …
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Impact of an artificial insemination programme on reproductive efficacy and the cross-breeding if indigenous South African goats with Boer goats in Vhembe District
… value in TEY at 96 h. In experiment 2, Boer goat semen was cryopreserved at -196 °C for 7 days in Tris extender-based bovine amniotic fluid and replicated 12 times. The semen samples were loaded into 0.25 ml France straws, sealed, and cooled at 5 °C for 4 h to equilibrate. After equilibration, the …
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Characterization of Phosphatidylserine Expression in Bovine Sperm
… PS were identified and PS levels in fresh and frozen semen were compared. Phosphatidylserine levels in frozen samples were significantly less than in fresh samples. We conclude that the cryopreservation process has an impact on PS expression in sperm by altering the proportion of sperm cells …
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The effects of sperm dose, semen quality, and retrograde sperm blockage on accessory sperm number and embryo quality in the artificially inseminated bovine
… sperm/ova or embryo quality are affected by semen quality. 4. Compare the percentage of morphologically normal accessory sperm with the percentage of normal cells in the inseminate. Using excised reproductive tracts, a French insemination rod housed in a 24-gauge Foley catheter was determined …
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Effect of bioxcell and triladyl extenders and removal of seminal plasma of equilibrated and cryopreserved goat semen
… and the removal of seminal plasma on goat buck semen. Six ejaculates were collected from six indigenous bucks by means of electro-ejaculator method, and semen was pooled, and replicated 10 times. Raw semen were randomly allocated into six groups as follows: (i) Raw non-washed, (ii) Raw washed, …
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Determining the role of nerve growth factor-beta in seminal plasma on bovine reproduction
… these physiological mechanisms may become lost. Frozen semen used in artificial insemination is extended to achieve the lowest effective breeding dose and maximize the number of straws acquired per collection. However, this practice also dilutes out the seminal plasma proteins to …