Relevant bibliographies by topics / Semen quality

Academic literature on the topic 'Semen quality'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 January 2023

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Journal articles on the topic "Semen quality"

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Snoj, Tomaz. "Bull semen quality parameters and impact of exogenous factors on semen quality." Veterinarski glasnik 68, no. 3-4 (2014): 229–39. http://dx.doi.org/10.2298/vetgl1404229s.

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Use of quality sires in the artificial insemination of cattle leads to the increased production in cattle breeding. In EU countries and the countries which cooperate in semen trade with EU countries bulls? health status and minimal criteria for semen quality are regulated by law. Bull semen quality is influenced by several exogenous factors. Semen quality parameters are influenced by season. The highest values of ejaculate volume and total sperm output were found during the summer, while the lowest values were found in winter period. Some xenobiotics can also affect semen parameters. Correlation between semen quality and pesticide use in limited geographic area was found, namely bull semen quality decreased in the period when pesticide use increased.
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Johnson, Dustie, and Samuel D. Prien. "New semen collection technique/container improves semen quality." Fertility and Sterility 80 (September 2003): 30. http://dx.doi.org/10.1016/s0015-0282(03)01879-x.

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Toft, Gunnar, Henning Sloth Pedersen, Jens Peter Bonde, and Inuendo Research team. "Semen quality in Greenland." International Journal of Circumpolar Health 63, sup2 (September 2004): 174–78. http://dx.doi.org/10.3402/ijch.v63i0.17894.

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Schlegel, Peter N. "Depression and semen quality." Fertility and Sterility 117, no. 1 (January 2022): 95. http://dx.doi.org/10.1016/j.fertnstert.2021.10.019.

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Tummon, I. S., and D. Mortimer. "Decreasing quality of semen." BMJ 305, no. 6863 (November 14, 1992): 1228–29. http://dx.doi.org/10.1136/bmj.305.6863.1228-c.

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Ginsburg, J., and P. Hardiman. "Decreasing quality of semen." BMJ 305, no. 6863 (November 14, 1992): 1229. http://dx.doi.org/10.1136/bmj.305.6863.1229.

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Brake, A., and W. Krause. "Decreasing quality of semen." BMJ 305, no. 6867 (December 12, 1992): 1498. http://dx.doi.org/10.1136/bmj.305.6867.1498-b.

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Carlsen, E., A. Giwercman, N. E. Skakkabaek, and N. Keiding. "Decreasing quality of semen." BMJ 306, no. 6875 (February 13, 1993): 461. http://dx.doi.org/10.1136/bmj.306.6875.461-b.

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Hauser, Russ, L. Altshul, J. Carlson, I. Schiff, Z. Chen, and D. C. Christiani. "SEMEN QUALITY AND PCBs." Epidemiology 9, Supplement (July 1998): S55. http://dx.doi.org/10.1097/00001648-199807001-00138.

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Banihani, Saleem A. "Omeprazole and Semen Quality." Basic & Clinical Pharmacology & Toxicology 118, no. 3 (December 28, 2015): 181–83. http://dx.doi.org/10.1111/bcpt.12529.

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Dissertations / Theses on the topic "Semen quality"

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Carson, Claire Elizabeth. "Risk factors for poor semen quality : a study of men undergoing semen analysis." Thesis, London School of Hygiene and Tropical Medicine (University of London), 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.424325.

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Atherton, S. "Semen quality detection using acoustic wave sensors." Thesis, Nottingham Trent University, 2011. http://irep.ntu.ac.uk/id/eprint/233/.

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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 of the sample are the number of sperm present and their motility. There are numerous methods used to analyse the quality of a sperm sample, but these are generally laboratory based, expensive and in need of a skilled operator to perform the analysis. It would, therefore be useful to have a simple and inexpensive system which could be used outside the laboratory, immediately prior to the insemination of the animal. Presented in this thesis is work developing a time of flight (ToF) technique which makes use of a quartz crystal microbalance (QCM), operating at 5 MHz, as the sensing element. Data is shown developing a device where a 50 μl sample of boar sperm is added to a liquid filled swim channel, which the sperm are allowed to self-propel down and attach to the surface of a QCM at the end. The attachment of the sperm to the surface causes a measurable frequency decrease in the QCM, aproximately 50 Hz. An average effective mass measurement was made using a QCM and gave a value of 8 ± 5 pg per sperm, which was used in conjunction with the frequency change to determine the number rate of sperm reaching the QCM. Additional data is presented to investigate the effect of environmental temperature on the ToF of the sperm, showing a decrease in ToF between 23 0C to 37 0C. The system was also used to investigate increasing the swim speed of the sperm by chemical means. A range of 20 μmol to 100 μmol of progesterone was added to the swim medium and the ToF was shown to decrease as a result. To further develop the system, large commercial electronics were replaced by smaller circuits built in-house. An oscillator circuit based on a Pierce oscillator was used to drive the QCM and a frequency counter circuit making use of a universal frequency to digital converter (UFDC-1) was used to measure the frequency of the QCM. ToF experiments were performed which showed these pieces of equipment to be effective for performing the analysis of sperm samples. The swim cell itself was also refined, resulting in a compact, modular design. Work was performed developing layer-guided, single-port acoustic resonators to replace the QCM as the sensing element in the sperm analysis device. A maximum mass sensitivity of 1110 Hzμg-1cm-2 was found for devices on a LiTaO3 substrate with a 6 μm guiding layer. While viscosity-density sensing experiments found a maximum sensitivity of 488 KHz Pa-1/2 kg1/2 for a 4 μm guiding layer.
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Vilakazi, David Mxolisi. "Factors affecting the quality of semen of AI dairy bulls in South Africa." Pretoria : [s.n.], 2005. http://upetd.up.ac.za/thesis/available/etd-09022005-150724.

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Poolperm, Pariwat. "Factors Influencing Semen Quality and Fertility in Boars." NCSU, 2001. http://www.lib.ncsu.edu/theses/available/etd-20010831-112730.

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POOLPERM, PARIWAT.  Factors Influencing Semen Quality and Fertilityin Boars. (Under the direction of Drs.Glen W. Almond and William L. Flowers)

        The objectives of this researchwere 1) determine the influence of antibiotics on semen quality, 2) determinethe association among insulin-like growth factor I (IGF-I) in seminal plasma,semen quality, and subsequent fertility, and 3) retrospectively study theassociation among semen parameters and sow fertility.  In the firststudy, the effects of gentamicin (GM), amikacin (AM), neomycin sulfate(NM), and penicillin-streptomycin (PS) in semen extender on the percentagesof motile (MOT), morphologically normal sperm (MOR), and sperm with normalacrosome (NAR) were examined.  An in vitro penetration assay was conductedusing sperm cells on day 0 and day 5 of storage.  GM and NM groupsshowed higher (p<0.05) MOT than other groups after 5 days of storage. No differences in penetration rate were found among treatments; however,the penetration rate decreased (p<0.05) on day 5 of storage.
        In the second study, ejaculateswere collected and diluted in an extender (Vital?).  Gilts (n=113)and sows (n=375) were inseminated with the extended semen in homogenetic-homospermicregimens.  Farrowing rate (FR), total pigs born (TB) and born alive(TBA) were recorded.  IGF-I was determined in seminal plasma by radioimmunoassay. Concentration of IGF-I from 204 ejaculates was 95.38 ± 3.56 ng/ml (mean± SEM) and total amount of IGF-I/ejaculate was 23.50 ± 1.20 µg.  SeminalIGF-I differed (p<0.05) among genetic lines and had no effect (p>0.05)on MOT, MOR and NAR.  However, IGF-I was associated (p<0.05) withsemen volume, sperm concentration and total number of sperm/ejaculate. No association between IGF-I level in seminal plasma and fertility indiceswas found.
        The third study determinedthe associations among insemination parameters with subsequent fertilityof boar semen using data from the second study.  MOR was associated(p<0.05) with fertility parameters.  TB and TBA were associatedwith age of semen at the first insemination (SAGE) and number of spermper insemination dose (AIDOSE).  With stepwise regression analysis,it was evident that FR was associated with semen volume, MOR and SAGE. Meanwhile, TB and TBA were associated with SAGE, AIDOSE and total numberof spermatozoa/ejaculate.  In conclusion, the assessment of semencharacteristics may not necessarily delineate fertility between boars.

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Vilakazi, David Mxolisi. "Factors affecting the quality of semen of A.I. dairy bulls in South Africa." Diss., University of Pretoria, 2003. http://hdl.handle.net/2263/27699.

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The primary objective of this research was to study the effects of breed, age, season, and their interactions on semen morphological characteristics. The study was done on 329 bulls (271 Friesland and 58 Jersey) aged 12, 24, 36,48, 60, 72, 84, 96 and> 96 months. The collection of semen was carried out using the artificial vagina method in all four seasons of the year. Spermatozoa were screened for the percentages normal sperm, percentage and total major defects such as knobbed acrosome, pyriform, abnormal lose head, dag defects, nuclear vacuole, degenerative heads, mid-piece reflexes, percentages and total minor defects such as normal lose heads, distal droplets, curled end-piece, lose acrosome. Statistical analyses of the data were done using the general linear model (GLM) procedure of the Statistical Analyses System (SAS, 1999). The results of the study indicate that breed did not significantly affected the percentage normal sperm and percentage major sperm defects, but significantly affected the percentage minor defects (P = 0.01). The Least square means (LSM±SE) for the percentage normal sperm, major defects and minor defects in Friesland and Jersey bulls were 80.6 ±1.06%; versus 78.9±2.31 %; 14.8±0.90% versus 15.0± 2.62%, 5.1±0.43% versus 7.6±0.94%, respectively. The results obtained show that the prevalence of sperm defects that differed significantly between breeds was higher in Jersey bulls compared to Friesland bulls. The results of the study indicated the percentage of normal sperm to differ (P = 0.01) with season. The percentage of normal sperm during the summer, autumn, winter and spring, were 72.8±1.6%, 79.4±2.2%, 82.5±2.4% and 84.4±2.4% respectively. Season also affected the percentage of major defects (P = 0.01) and percentage of minor defects (P = 0.03). The results demonstrate that even though there was a higher variation in sperm morphology with season, better sperm morphology was recorded in spring and winter than summer and autumn. Results also indicate the percentage of normal sperm (P = 0.05) and major defects (P = 0.01) to be affected significantly by age. On the other hand, the percentage of minor defects did not differ significantly with age. Bulls of 36-48 months of age showed better semen quality than bulls older than 72 months and bulls younger than 36 months. The percentage of major defects, particularly the incidence of major defects such as knobbed acrosomes, pyriforms, dag defects and broken flagella were significantly affected by the interaction between age and breed (P = 0.05) and age and season (P = 0.05). There was an increase in the susceptibility to these sperm defects in Jersey bulls with an increase in age, while no variation was observed in Friesland bulls. With age and season combined, young bulls recorded poor semen morphology during winter, while old bulls showed poor morphology during summer. In conclusion, the study suggested that breed, age and season and their interactions are important sources of variation in sperm morphology. For a successful AI programme, semen collection should be done at the age of 36-48 months for both breeds. It is therefore recommended that age, breed and season should be given urgent attention in any bull management system employed in South Africa in order to obtain the best semen quality.
Dissertation (M Inst Agrar (Animal Production))--University of Pretoria, 2003.
Animal and Wildlife Sciences
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Bryan, Tina Michelle. "Testicular function in normal and poor semen quality stallions." Texas A&M University, 2004. http://hdl.handle.net/1969.1/3253.

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The chromosomal location of endocrine genes was established, and relationships between expression of specific endocrine genes and measures of testis function in normal and poor semen quality stallions was assessed. Consensus primer sequences for glucocorticoid receptor (GR) and luteinizing hormone receptor (LHR) were used to screen the CHORI-241 equine bacterial artificial chromosome (BAC) library. The identity of PCR-positive BAC clones was confirmed by sequencing. Verified BACs were mapped to horse metaphase chromosome spreads by fluorescence in situ hybridization (FISH). The BACs containing the GR and LHR were localized by FISH to ECA 14q16-q21 and ECA15q22-q23, respectively. In addition to FISH mapping, the 5000rad horse x hamster radiation hybrid (RH) panel was screened in duplicate. Two-point linkage analysis placed GR 0 cR from LEX047, while LHR was 36.67 cR from TKY011 on ECA14 and ECA15, respectively. Total testicular parenchymal weight, mean daily sperm production (DSP) per gram parenchyma and mean apoptotic rate (406.05 ± 24.33g vs. 180.01 ± 34.41g, 15.29 ± 0.87 vs. 10.24 ± 1.10, 6.70 ± 0.88 vs. 14.25 ± 1.11, respectively) differed (P<0.05) between normal (n=8) and poor semen quality (n=5) stallions. Also, plasma estradiol and inhibin concentrations were higher (P<0.05) in normal stallions than in poor semen quality stallions. Testicular expression of estrogen receptor beta (ER beta), βB inhibin, prolactin receptor (PRLR), growth hormone receptor (GHR) and insulin-like growth factor I receptor (IGF-IR) mRNAs were all lower (P<0.05) in poor semen quality stallions than in normal stallions. The BACs and primers developed in this study will facilitate future investigations of GR and LHR gene structure in the horse as well as providing a resource for physiological investigation of these two genes that are primary regulators of stress responsiveness and fertility. These data add important endocrine genes to the horse cytogenetic map. Also, important hormonal and gene expression changes have been identified in poor semen quality stallions for further investigation.
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Bani, Hani Saleem A. M. Sc Ph D. "Semen Quality and Chemical Oxidative Stress; Quantification and Remediation." Cleveland State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=csu1313527831.

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Waite, Jessica Arlene. "Cushioned centrifugation of stallion semen: factors impacting equine sperm recovery rate and quality." Thesis, Texas A&M University, 2007. http://hdl.handle.net/1969.1/85886.

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Centrifugation of stallion semen is an integral part of the cryopreservation procedure, primarily allowing for the concentration of sperm and removal of seminal plasma. In addition, centrifugation is required for maximizing spermatozoal quality in semen from some stallions subjected to cooled transport, because of the detrimental effects of long-term exposure to high levels of seminal plasma. The centrifugation process, however, has potential deleterious effects, including reduction in sperm quality as well as loss of sperm numbers. Since centrifugation plays such a crucial role in semen processing, two experiments were designed to evaluate more efficient centrifugation methods to meet the demands of the equine industry. In Experiment 1, semen was centrifuged in two different tube types (nipple- or conical-bottom), using a cushioned technique (Eqcellsire® Component B) with two different extenders (opaque-INRA96 or clear-HGLL). For Experiment 2, nipple-tube centrifugation was conducted at two different g forces (400 or 600) for 20 min, using three different iodixanol cushion media, Eqcellsire® Component B, OptiPrep[TM], or Cushion Fluid[TM]. Regardless of tube or extender types, centrifugation of semen resulted in sperm recovery rates ≥90%; however, centrifugation in INRA 96 extender yielded higher sperm motility values than did centrifugation in HGLL extender (P < 0.05). Cushion type or g force did not impact post-centrifugation semen quality, based on the laboratory values measured (P > 0.05). These results indicate that cushioned centrifugation of stallion semen in either conical-bottom or nipple-bottom tubes can yield a high sperm harvest, while maintaining sperm function. An optically opaque extender, as is typically used in the equine breeding industry, can be used to achieve this goal. The fertility rate (94%; 131/140) following cushioned semen centrifugation in a commercial program this past year indicates that these laboratory results are transferable to the clinical setting.
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Osuagwuh, Uchebuchi I. "Semen quality and the excretion of lumpy skin disease virus in semen following vaccination and experimental challenge of vaccinated bulls." Diss., University of Pretoria, 2006. http://hdl.handle.net/2263/23607.

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The aim of this study was to determine the efficacy of vaccination in preventing LSDV excretion in semen and negative effects on semen quality. Lumpy skin disease (LSD) is caused by a virus in the genus Capripoxvirus of the family Poxviridae. The virus has been reported to be excreted in the semen of experimental infected nonvaccinated bulls. Nevertheless, vaccination has been the most widely used method to reduce and prevent the spread of the disease. This work was done to determine the efficacy of lumpy skin disease vaccination in preventing the excretion of lumpy skin disease virus (LSDV) in semen of experimentally infected vaccinated bulls. It also determined further the effect of vaccination and experimental infection on semen quality. Six serologically negative bulls 11-16 months of age were vaccinated with an attenuated Neethling strain of LSD vaccine, and a repeated dose of vaccine was given twenty one days later. These bulls were then experimentally infected by intravenous injection with a virulent field strain of LSDV (V248/93). Six unvaccinated bulls were similarly infected to act as controls. All animals were observed for clinical signs, blood and semen was collected and evaluated twice a week until day 40 post vaccination and every two days until day 28 post-infection when the trial was terminated. Serology was done using the serum neutralization test and viraemia was determined by virus isolation. Semen was examined by polymerase chain reaction (PCR) for the presence of virus. Semen evaluation was done visually and microscopically. Two of the unvaccinated controls developed severe LSD, two showed mild symptoms and two were asymptomatic. No clinical abnormalities were detected following vaccination, and clinical signs were limited to mild lymph node enlargement in four bulls following challenge of the vaccinated bulls. There was a significant difference (P<0.05) in semen quality after experimental infection of the unvaccinated bulls. In the vaccinated bulls, semen quality showed no significant difference (P>0.05) following vaccination and challenge. Three of the vaccinated bulls were serologically positive at the time of experimental infection and four at the end of the trial. Five unvaccinated bulls were found to be viraemic during the course of the trial. No vaccinated bulls were found to be viraemic at any stage. Four unvaccinated bulls excreted the virus in their semen during the course of the trial. Viral nucleic acid was not detected in any semen samples following vaccination or challenge in vaccinated bulls. This study provides evidence that vaccination against LSD prevented the excretion of viral particles in semen. It also illustrated that LSD vaccination prevented any effect on semen quality after experimental infection with virulent virus.
Dissertation (MSc (Production Animal Studies))--University of Pretoria, 2006.
Production Animal Studies
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Noonan, Beth Anne Kurginski. "Male Turkey reproduction : modifications of daylength and light intensity to increase semen quantity and quality; a study of semen quality characteristics, reproductive hormones, poult production, and behavior /." The Ohio State University, 1999. http://rave.ohiolink.edu/etdc/view?acc_num=osu1488190109868922.

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Books on the topic "Semen quality"

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Schmidt, Renate. S.O.S. Familie: Ohne Kinder sehen wir alt aus. Berlin: Rowohlt Berlin, 2002.

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Garrett, Festus. Smoking and Semen Quality: All You Need to Know about Smoking and Semen Quality. Independently Published, 2021.

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Wahlberg. Good Quality. University of California Press, 2018.

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Lemma, Alemayehu, ed. Success in Artificial Insemination - Quality of Semen and Diagnostics Employed. InTech, 2013. http://dx.doi.org/10.5772/45731.

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Wahlberg, Ayo. Good Quality: The Routinization of Sperm Banking in China. University of California Press, 2018.

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Wahlberg, Ayo. Good Quality: The Routinization of Sperm Banking in China. University of California Press, 2018.

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M. Ebrahem, Susanne Kersten, Christine Ehling, Hana Valenta, Ulrike Taylor, U. Baulain, G. Breves, A. Beineke, Kathrin Hermeyer, and S. Dänicke. Effect of Fusarium toxin contaminated wheat on health, nutrient digestibility and semen quality of adult cockerels. Verlag Eugen Ulmer, 2014. http://dx.doi.org/10.1399/eps.2014.47.

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Bootwalla, Salim Mohsin. Factors affecting semen quality and their effects on the fertilizing ability of broiler breeder spermatozoa using a fluorometric assay. 1987.

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Singh, Chander Kant. 30-Day Male Infertility Cure: A Unique Ayurvedic Porridge Recipe to Increase the Quality and Quantity of Sperm and Semen. Independently Published, 2019.

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Dohle, Gert R. Infertility. Edited by David John Ralph. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199659579.003.0096.

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The assessment of men with fertility problems is described in this chapter. The main causes of male infertility are testicular insufficiency due to congenital and acquired causes, obstructions of the male genital tract, genetic and endocrine abnormalities, urogenital infections, and varicoceles. Lifestyle can also have a negative influence on semen quality: smoking, obesity, drugs, and anabolic steroids influence sperm parameters and may reduce natural conception. Some chronic diseases also have a negative influence on fertility. History taking and physical examination should focus on prevalent causes of male infertility. Many decisions on diagnosis and treatment of male infertility are based on a semen analysis. It is therefore essential that the investigation is performed according to the recommendations of the world health organization manual for semen analysis.
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Book chapters on the topic "Semen quality"

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Henkel, Ralf. "ROS and Semen Quality." In Studies on Men's Health and Fertility, 301–23. Totowa, NJ: Humana Press, 2012. http://dx.doi.org/10.1007/978-1-61779-776-7_15.

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Terner, C. "Aeroic Metabolism and Semen Quality." In Ciba Foundation Symposium - Mammalian Germ Cells, 46–58. Chichester, UK: John Wiley & Sons, Ltd., 2008. http://dx.doi.org/10.1002/9780470718841.ch5.

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Levine, Richard J. "Seasonal Variation in Human Semen Quality." In Advances in Experimental Medicine and Biology, 89–96. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-5913-5_8.

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Vincent, Patrick, Shelley L. Underwood, Catherine Dolbec, Nadine Bouchard, Tom Kroetsch, and Patrick Blondin. "Bovine Semen Quality Control in Artificial Insemination Centers." In Bovine Reproduction, 685–95. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118833971.ch74.

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Ramasamy, Ranjith, and Samarpit Rai. "Medical and Lifestyle Approaches to Improving Semen Quality." In The Diagnosis and Treatment of Male Infertility, 33–43. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-56547-7_3.

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Pallotti, Francesco, Marianna Pelloni, Stefano Colangelo, Daniele Gianfrilli, Andrea Lenzi, Francesco Lombardo, and Donatella Paoli. "Environmental Impact on Semen Quality and Male Fertility." In Endocrinology, 1–31. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-38366-4_9-1.

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Krausz, Csilla, and Ginevra Farnetani. "Clinical Interpretation of Semen Analysis." In Practical Clinical Andrology, 173–84. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-11701-5_13.

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AbstractSemen analysis is a fundamental step in the evaluation of the male fertility potential. However, fertility is a “couple-concept” implying the importance of the partner’s fertility status. In fact, a part from extreme conditions (e.g., azoospermia, necrozoospermia, total immotile spermatozoa, etc.) sperm parameters are not fully predictive for natural pregnancy. Semen analysis is divided into macroscopic and microscopic evaluation, and it provides information on the efficiency of spermatogenesis and the integrity of post-testicular structures. Based on the WHO reference values, it is possible to identify alterations of semen parameters, which may derive from many different etiologies. It is essential that the laboratory performs the analysis according to the current WHO guidelines and participate at an external quality control (EQC) program. The clinical interpretation of these alterations is the focus of this chapter.
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Quintero-Moreno, Armando, Hector Nava Trujillo, and Carla Osorio-Meléndez. "Advances in Semen Quality Assessments in AI Programs in Buffalo." In Biotechnological Applications in Buffalo Research, 377–88. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-7531-7_18.

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Shanthini, C., and S. Silvia Priscila. "Development of Deep Learning-Based Predictive Models for Semen Quality Analysis." In Advancements in Smart Computing and Information Security, 435–45. Cham: Springer Nature Switzerland, 2022. http://dx.doi.org/10.1007/978-3-031-23092-9_34.

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Mishra, Priyanka, and Rajender Singh. "Seminal Decline in Semen Quality in Humans Over the Last 80 years." In Male Infertility: Understanding, Causes and Treatment, 89–108. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4017-7_7.

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Conference papers on the topic "Semen quality"

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Jiang, Yufeng, Shiying Zheng, Chunyin Yan, and Wei Zhang. "The application of computer-assisted semen analysis parameters in semen quality analysis." In 2009 International Conference on Future BioMedical Information Engineering (FBIE). IEEE, 2009. http://dx.doi.org/10.1109/fbie.2009.5405901.

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"INVESTIGATION OF OPERATING PARAMETERS FOR A SEMEN QUALITY ANALYSIS SYSTEM." In International Conference on Biomedical Electronics and Devices. SciTePress - Science and and Technology Publications, 2009. http://dx.doi.org/10.5220/0001429600130016.

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Mardiono, Indra, Marwan, and Abror. "Strategy to Improve the Quality of Education in Semen Padang." In 4th Padang International Conference on Education, Economics, Business and Accounting (PICEEBA-2 2019). Paris, France: Atlantis Press, 2020. http://dx.doi.org/10.2991/aebmr.k.200305.105.

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Solihati, Nurcholidah, Siti Darodjah Rasad, R. Setiawan, and C. Alvionita. "Quality and Viability of Javanese Local Ram Semen at Different Age." In Proceedings of International Seminar on Livestock Production and Veterinary Technology. Indonesian Center for Animal Research and Development (ICARD), 2016. http://dx.doi.org/10.14334/proc.intsem.lpvt-2016-p.265-270.

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Leni, Puspa, Sutiyem Sutiyem, Suhery Suhery, Dessy Trismiyanti, and Yoserizal Yoserizal. "Analysis of Service Quality Dimensions on Customer Satisfaction at Semen Padang Hospital." In First Padang International Conference On Economics Education, Economics, Business and Management, Accounting and Entrepreneurship (PICEEBA 2018). Paris, France: Atlantis Press, 2018. http://dx.doi.org/10.2991/piceeba-18.2018.49.

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Ahmad, Zulkhairul Naim Bin Sidek, Daniel Brison, and Andrew Povey. "0393 A systematic literature review: organophosphate (op) pesticide exposure and semen quality." In Eliminating Occupational Disease: Translating Research into Action, EPICOH 2017, EPICOH 2017, 28–31 August 2017, Edinburgh, UK. BMJ Publishing Group Ltd, 2017. http://dx.doi.org/10.1136/oemed-2017-104636.324.

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Syafitri, Muthiah, Teguh Ari Prabowo, Pradita Iustitia Sitaresmi, Lies Mira Yusiati, Sigit Bintara, and Diah Tri Widayati. "The Effect of Glutathione Addition in Diluent Semen on Ram Spermatozoa Quality." In 9th International Seminar on Tropical Animal Production (ISTAP 2021). Paris, France: Atlantis Press, 2022. http://dx.doi.org/10.2991/absr.k.220207.052.

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Suswojo, Heru. "IMPROVEMENT OF LABORATORY SERVICE QUALITY OF OUTPATIENT INSTALLATION AT SEMEN GRESIK HOSPITAL BY QUALITY FUNCTION DEPLOYMENT (QFD) METHOD." In International Conference on Public Health. The International Institute of Knowledge Management (TIIKM), 2018. http://dx.doi.org/10.17501/icoph.2017.3213.

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Santhosh, Sanjay, and Ratheesh S. "Computer-Aided Semen Quality Prediction Using Long-Term Recurrent Convolutional Network(LRCN) and ConvLSTM." In 2022 International Conference on Innovations in Science and Technology for Sustainable Development (ICISTSD). IEEE, 2022. http://dx.doi.org/10.1109/icistsd55159.2022.10010547.

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Herdis, M. Surachman, I. W. A. Darmawan, and Afifah. "The role of sucrose as extracellular cryoprotectant in maintaining the Garut rams’ frozen semen quality." In INTERNATIONAL CONFERENCE ON BIOLOGY AND APPLIED SCIENCE (ICOBAS). AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5115757.

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Reports on the topic "Semen quality"

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Dzhoglov, Spas, Doychin Boyadzhiev, and Evgeniya Neshova Ivanova. Association between Some Environment and Lifestyle Factors with Male Semen Quality Parameters: Semen Volume, Spermatozoa Concentra tion and Motility. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, January 2021. http://dx.doi.org/10.7546/crabs.2021.01.15.

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Ouzounova-Raykova, Vessela, Radoslav Baykushev, Mohamed El Tibi, Simeon Rangelov, Dragomir Petrov, and Ivan Mitov. Genital Mycoplasmas and Ureaplasmas and Abnormal Semen Quality in Infertile Bulgarian Men. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, July 2018. http://dx.doi.org/10.7546/crabs.2018.07.15.

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Adamczewska, Daria, Jolanta Słowikowska-Hilczer, and Renata Walczak-Jędrzejowska. The Association Between Vitamin D and the Components of Male Fertility: a Systematic Review. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, November 2022. http://dx.doi.org/10.37766/inplasy2022.11.0151.

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Review question / Objective: The purpose of this systematic review is to provide an up-to-date, comprehensive review of the existing literature on the experimental and clinical evidence for the effects of VD on the components of male fertility, sperm parameters and sex hormone production. Condition being studied: Vitamin D serum level in relation to men semen quality and sex hormones serum concentration. Eligibility criteria: Exclusion criteria: not in English; review, meta analysis; animal studies; in vitro studies; study group < 30 subject; insufficient data; wrong or missing outcome.
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Hansen, Peter J., and Zvi Roth. Use of Oocyte and Embryo Survival Factors to Enhance Fertility of Heat-stressed Dairy Cattle. United States Department of Agriculture, August 2011. http://dx.doi.org/10.32747/2011.7697105.bard.

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The overall goal was to identify survival factors that can improve pregnancy success following insemination or embryo transfer in lactating dairy cows exposed to heat stress. First, we demonstrated that oocytes are actually damaged by elevated temperature in the summer. Then we tested two thermoprotective molecules for their effect on oocyte damage caused by heat shock. One molecule, ceramide was not thermoprptective. Another, insulin-like growth factor-1 (IGF) reduced the effects of heat shock on oocyte apoptosis and oocyte cleavage when added during maturation. We also used lactating cows exposed to heat stress to determine whether bovine somatotropin (bST), which increases IGF1 levels in vivo, would improve fertility in summer. Cows treated with bST received a single injection at 3 days before insemination. Controls received no additional treatment. Treatment with bST did not significantly increase the proportion of inseminated cows diagnosed pregnant although it was numerically greater for the bST group (24.2% vs 17.8%, 124–132 cows per group). There was a tendency (p =0.10) for a smaller percent of control cows to have high plasma progesterone concentrations (≥ 1 ng/ml) at Day 7 after insemination than for bST-treated cows (72.6 vs 81.1%). When only cows that were successfully synchronized were considered, the magnitude of the absolute difference in the percentage of inseminated cows that were diagnosed pregnant between bST and control cows was reduced (24.8 vs 22.4% pregnant for bST and control). Results failed to indicate a beneficial effect of bST treatment on fertility of lactating dairy cows. In another experiment, we found a tendency for addition of IGF1 to embryo culture medium to improve embryonic survival after embryo transfer when the experiment was done during heat stress but not when the experiment was done in the absence of heat stress. Another molecule tested, granulocyte-macrophage colony-stimulating factor (GM-CSF; also called colony-stimulating factor-2), improved embryonic survival in the absence of heat stress. We also examined whether heat shock affects the sperm cell. There was no effect of heat shock on sperm apoptosis (programmed cell death) or on sperm fertilizing ability. Therefore, effects of heat shock on sperm function after ejaculation if minimal. However, there were seasonal changes in sperm characteristics that indicates that some of the decrease in dairy cow fertility during the summer in Israel is due to using semen of inferior quality. Semen was collected from five representative bulls throughout the summer (August and September) and winter (December and January). There were seasonal differences in ion concentration in seminal plasma and in the mRNA for various ion channels known to be involved in acrosome reactions. Furthermore, the proportion of sperm cells with damaged acrosomes was higher in post-thaw semen collected in the summer than in its counterpart collected in winter (54.2 ± 3.5% vs. 51.4 ± 1.9%, respectively; P < 0.08Further examination is required to determine whether such alterations are involved in the low summer fertility of dairy cows.
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Leer, Jane, Florencia López Bóo, Ana Pérez Expósito, and Christine Powell. A Snapshot on the Quality of Seven Home Visit Parenting Programs in Latin America and the Caribbean. Inter-American Development Bank, August 2016. http://dx.doi.org/10.18235/0000433.

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Niu, Mingming, Ya Gao, Min Yang, Yonggang Zhang, Jie Geng, Ziwei Song, Yamin Chen, Yanchen Li, Jiang Li, and Jinhui Tian. The quality and clinical applicability of recommendations in anxiety disorders guidelines: A systematic review of seventeen guidelines from seven countries. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, July 2021. http://dx.doi.org/10.37766/inplasy2021.7.0068.

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Lemos, Renata, Karthik Muralidharan, and Daniela Scur. Personnel Management and School Productivity: Evidence from India. Research on Improving Systems of Education (RISE), February 2021. http://dx.doi.org/10.35489/bsg-rise-wp_2021/063.

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This paper uses new data to study school management and productivity in India. We report four main results. First, management quality in public schools is low, and ~2σ below high-income countries with comparable data. Second, private schools have higher management quality, driven by much stronger people management. Third, people management quality is correlated with both independent measures of teaching practice, as well as school productivity measured by student value added. Fourth, private school teacher pay is positively correlated with teacher effectiveness, and better managed private schools are more likely to retain more effective teachers. Neither pattern is seen in public schools.
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Badami, Kaswan, Budi Setiadi Daryono, Achmad Amzeri, and Syaiful Khoiri. COMBINING ABILITY AND HETEROTIC STUDIES ON HYBRID MELON (Cucumis melo L.) POPULATIONS FOR FRUIT YIELD AND QUALITY TRAITS. SABRAO Journal of Breeding and Genetics, October 2020. http://dx.doi.org/10.21107/amzeri.2020.3.

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In different crop plants, combining ability and heterosis are used as important diagnostic tools for assessing the performance of parental genotypes and their hybrids. This research aimed to evaluate heterotic and combining ability effects in the diallel crosses of melon (Cucumis melo L.) for yield- and quality-related traits. Seven melon (C. melo L.) genotypes were grown and crossed in a complete diallel fashion to produce F1 hybrids. During the 2019 crop season, 49 melon genotypes (7 parents + 42 F1 hybrids) were grown in a randomized complete block design with three replications. Observations were made for seven characters. Analysis of variance revealed significant (P ≤ 0.01) differences among the melon genotypes for harvest age, fruit flesh thickness, fruit total soluble solids, fruit length, and fruit diameter and merely significant differences (P ≤ 0.05) for fruit weight. Combining ability analysis revealed that mean squares due to general combining ability (GCA) were significant for fruit diameter but were nonsignificant for all other traits. However, mean squares due to specific combining ability (SCA) were significant for all traits. The parental genotypes PK-165, PK-464, and PK-669 exhibited the highest and desirable GCA effects for yield and quality traits. Hence, these genotypes could be used to generate high-yielding hybrid/open-pollinated cultivars. GCA:SCA ratios further revealed that the traits of harvest age, fruit flesh thickness, fruit total soluble solids, fruit length, and fruit weight were controlled by dominant gene action, whereas fruit diameter was managed by additive and dominant genes. The majority of the traits were controlled by nonadditive gene action, verifying that the said breeding material could be efficiently used for the production of hybrid cultivars on the basis of heterotic effects.
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Frazer, Sarah, Anna Wetterberg, and Eric Johnson. The Value of Integrating Governance and Sector Programs: Evidence from Senegal. RTI Press, September 2021. http://dx.doi.org/10.3768/rtipress.2021.rb.0028.2109.

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As the global community works toward the Sustainable Development Goals, closer integration between governance and sectoral interventions offers a promising, yet unproven avenue for improving health service delivery. We interrogate what value an integrated governance approach, intentionally combining governance and sectoral investments in strategic collaboration, adds to health service readiness and delivery using data from a study in Senegal. Our quasi-experimental research design compared treatment and control communes to determine the value added of an integrated governance approach in Senegal compared to health interventions alone. Our analysis shows that integrated governance is associated with improvements in some health service delivery dimensions, specifically, in aspects of health facility access and quality. These findings—that health facilities are more open, with higher quality infrastructure and staff more frequently following correct procedures after integrated governance treatment—suggests a higher level of service readiness. We suggest that capacity building of governance structures and an emphasis on social accountability could explain the added value of integrating governance and health programming. These elements may help overcome a critical bottleneck between citizens and local government often seen with narrower sector or governance-only approaches. We discuss implications for health services in Senegal, international development program design, and further research.
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Sopein-Mann, Oluwafunmike, Zita Ekeocha, Stephen Robert Byrn, and Kari L. Clase. Medicines Regulation in West Africa: Current State and Opportu-nities. Purdue University, December 2021. http://dx.doi.org/10.5703/1288284317443.

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Ndomondo-Sigonda et al. (2017) observed that there is scarcity of information on human resources (person-nel devoted to regulation of medicines) in the domain of medicines regulation in the sub-Saharan Africa (SSA). The published information on medicines regulation by the National Medicines Regulatory Authorities (NMRAs) in the Economic Community of West African States (ECOWAS) region are no longer current and consistent with the current realities in the NMRAs. In order to reveal this occurrence, show the trends that exist over the years and make appropriate recommendations, data were collected and compared from 2005, 2010 and 2017 research reports on seven regulatory features of the fifteen Members States of ECOWAS. The re-sults show that there was missing information per regulatory feature and country. There was also an overall increasing trend in the number of NMRAs in the region that showed progress with respect to the measured regulatory features - Autonomy (Authority and Legal form), Marketing Authorization), GMP inspection, Quality Control, Quality Management System, Information Management System and Harmonization and International cooperation. People of Africa have a valuable story to tell as it relates to medicines regulation. This report is written by a West African from the perspective of a West African involved in the study and practice of medi-cines regulation by the NMRAs in the ECOWAS.
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