Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 229 for “"Semen"”.
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Semen quality detection using acoustic wave sensors
Artificial insemination (AI) is a widely used part of the modern agricultural industry, with the number of animals inseminated globally being measured in the millions per anum. Crucial to the success of AI is that the sperm sample used is of a high Quality. Two factors which determine the quality …
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Impact of obesity on semen analysis parameters
… investigation, as well as assessing any semen analysis abnormalities in these groups. It also aims to describe how well men can predict their BMI category and determine whether weight loss would be an acceptable part of infertility management in overweight or obese male partners. Beliefs …
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The Preservation of Bovine Semen at Room Temperatures
Made available in DSpace on 2014-12-05T23:07:53Z (GMT). No. of bitstreams: 1 0023387.pdf: 11609449 bytes, checksum: 42c519493b8897235ddad397105a90d7 (MD5) Previous issue date: 1957
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The evaluation of tests for the identification of semen
… used to confirm the identity of a body fluid. Semen is one of the most common bodily fluids encountered in sexual assault cases and contains high concentrations of the acid phosphatase (AP) enzyme. The brentamine FB reagent reacts with the AP that is present in semen, and turns purple. If the …
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Methods for semen analysis and intrauterine insemination: room for improvements
Contains fulltext : 232634.pdf (Publisher’s version ) (Open Access)
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Posthumous Semen Retrieval and Reproduction: An Ethical, Legal, and Religious Analysis
Posthumous reproduction and procurement of semen has been a hot topic in the bioethics community due to its issues concerning possible violation of the interests of the deceased, welfare of the potential child, and possible moral conflicts experienced by physicians. The issue of consent is …
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Efecto de la trehalosa en la viabilidad de semen ovino refrigerado
Fil: Dinatolo, Eduardo Federico. Universidad Católica Argentina. Facultad de Ingeniería y Ciencias Agrarias; Argentina
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Studies Into the Significance of Distal Cytoplasmic Droplets in Porcine Semen
… only ejaculates containing ≥15% DD in semen pools with a mean retained DD content of 25% may reduce litter size by up to 0.5 piglets per litter, while including one DD ejaculate in a pool with three morphologically normal ejaculates is a method to more efficiently utilize ejaculates …
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Comparative evaluation of different extenders of bull semen stored under different conditions
Preservation of semen is an important process to ensure that semen quality is sufficient for use in assisted reproductive technologies. This study evaluated the effectiveness of three different extenders to preserve bull semen stored under different conditions, as an alternative to frozen-thawed …
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Investigations of achromobacter xylosoxidans and ralstonia pickettii in porcine semen extension systems
Dilution and extension of semen longevity has been widely used in the swine industry to improve reproductive efficiency and genetic progress through artificial insemination. Through the dilution and extension of the life of the sperm cell, other organisms such as bacteria are also maintained and …
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A longitudinal study of hormonal and semen profiles in a marathon runners
… hormonal profiles, anthropomorphic indices and semen evaluation. The training time and distance run increased progressively over the first five months of the study as the runners prepared for the Two Oceans marathon. Analysis of the serum hormonal profiles in this longitudinal study showed that …
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Evaluation of Stallion Frozen-Thawed Semen Using Conventional and Flow Cytometric Assays
Field evaluation of frozen-thawed stallion semen has been limited to tests such as post-thaw motility and morphology that are not only subjective but also evaluate only a small population of cells. Flow cytometry has provided a quick, repeatable, objective method of evaluating a large number of …
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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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Separation of abnormal spermatozoa from semen produced by bulls with impaired testicular thermoregulation
… to investigate the efficiencies of selected semen separation techniques on the removal of abnormal spermatozoa. in Study 1, semen from control and partial scrotal insulation (Pl) bulls did not differ between the pre-insult and post-insult period for any variable measured. Full scrotal …
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Human subfertility: explorative studies on some pathophysiologic factors in semen and follicular fluid.
Contains fulltext : 52284.pdf (Publisher’s version ) (Open Access)
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Genetic parameters and genomic analysis of semen quality and fertility traits in pigs
… for production traits and selecting boars for semen traits, such as volume, concentration, motility and morphology, and for low variation in semen quality and production is still not a common practice. This selection is important for better performance of boars at AI stations, whose objective …
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Effects of Zeranol on Some Reproductive Traits in Beef Bulls (Semen, Histology, Hormones)
… variables tended to recover as the bulls aged. Semen quality was low in the implanted groups and did not improve with increasing age. Samples of spermatozoa taken from the cauda epididymidis showed that implanted groups had a higher incidence of certain sperm abnormalities than the control …
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The evaluation of the specificity of the Acid Phosphatase test to identify semen
… material to: (i) presumptively identify if semen may be present in order to guide downstream DNA profiling analysis to identify the alleged assailant; and (ii) confirm if semen was indeed present to provide evidence of ejaculation. The presumptive test used to detect the possible presence of …
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