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Dissertations / Theses on the topic 'Semen and fertility'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Badenoch, D. F. "Semen analysis and fertility." Thesis, University of Oxford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375208.

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2

Naeeni, Mojgan. "Predictive values of semen parameters for fertility." Thesis, University of Sheffield, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245535.

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3

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

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4

Findlater, Richard Cameron Fraser. "Intrauterine insemination to improve fertility with frozen semen in sheep." Thesis, University of Nottingham, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328811.

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5

Quintana, Casares Pablo Ignacio. "Studies on the relationship between characteristics of ram semen and fertility." Title page, contents and summary only, 1991. http://web4.library.adelaide.edu.au/theses/09PH/09phq7.pdf.

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Includes bibliographical references (leaves 274-316) Examines several aspects of male reproduction in the sheep, and how these are related to fertility in the female when semen is introduced by natural mating or artificial insemination.

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6

Botha, Alma Ester. "Effect of the acidic buffer 2-[n-morpholino] ethanesulfonic acid on frozen-thawed bull semen." Pretoria : [s.n.], 2010. http://upetd.up.ac.za/thesis/available/etd-02252010-141250/.

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7

Eriksson, Bengt. "Cryopreservation of boar semen : studies on sperm viability in vitro and fertility /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2000. http://epsilon.slu.se/avh/2000/91-576-5903-6.pdf.

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8

Marques, Daniele Botelho Diniz. "Genetic parameters and genomic analysis of semen quality and fertility traits in pigs." Universidade Federal de Viçosa, 2017. http://www.locus.ufv.br/handle/123456789/18797.

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Submitted by Marco Antônio de Ramos Chagas (mchagas@ufv.br) on 2018-04-18T16:43:21Z No. of bitstreams: 1 texto completo.pdf: 1119071 bytes, checksum: 3dad9c3c8b4da25dfaf3676d6dcc7e69 (MD5)<br>Made available in DSpace on 2018-04-18T16:43:21Z (GMT). No. of bitstreams: 1 texto completo.pdf: 1119071 bytes, checksum: 3dad9c3c8b4da25dfaf3676d6dcc7e69 (MD5) Previous issue date: 2017-09-04<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>O uso generalizado da inseminação artificial (IA) contribuiu grandemente para o sucesso da indústria de suínos, por meio do auxílio e dissemina

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9

Speight, Susan Michelle. "Growth Performance, Carcass Traits, and Reproductive Characteristics in Boars Fed Diets Supplemented With an Organic Source of Selenium." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/29584.

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The objectives of this study were to assess growth and reproductive performance of boars fed a diet supplemented with organic selenium (Se). Crossbred boars received one of three treatments: I. basal diet with no supplemental Se, II. basal diet supplemented with 0.3 ppm organic Se (Sel-Plex), and, III. basal diet supplemented with 0.3 ppm sodium selenite. Nursery (n = 13 pens/treatment) boar performance was not affected (P > 0.1) by diet and only grow-finish (n = 11 pens/treatment) G:F was greater (P < 0.06) for Sel-Plex (0.378) compared with selenite (0.368) or control (0.363) boars. At 15-mo

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10

Cropp, Amy Rena. "Interaction of Bovine Seminal Proteins with Neutrophils." Thesis, The University of Arizona, 2006. http://hdl.handle.net/10150/193318.

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Neutrophils ordinarily infiltrate the female reproductive tract subsequent to mating or artificial insemination, resulting in reduced fertility. Recently, it was demonstrated that equine neutrophil extracellular traps (NETs) entangled sperm in these DNA-rich structures, interfering with their normal transport through the female reproductive tract. Seminal plasma (SP) or proteinaceous extracts from SP inhibited sperm-neutrophil binding and specifically degraded sperm-activated NETs, without suppressing bactericidal activity of neutrophils. Fertility-associated antigen (FAA), a 31 kDa natural

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11

DiGrassie, Wynne Aubin. "Evaluation of Stallion Frozen-Thawed Semen Using Conventional and Flow Cytometric Assays." Thesis, Virginia Tech, 2000. http://hdl.handle.net/10919/33896.

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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 cells, including spermatozoa. Two experiments were designed to first validate the use of several flow cytometric tests on frozen-thawed stallion semen and then determine a model that may best explain variation in fertility. Comparing samples that were live and freeze-killed validated the flow cytomet

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12

Jelena, Apić. "UTICAJ SADRŽAJA PROTEINA U SPERMALNOJ PLAZMI NERASTA NA PARAMETRE RAZREĐENE SPERME I FERTILITET VEŠTAČKI OSEMENjENIH KRMAČA." Phd thesis, Univerzitet u Novom Sadu, Poljoprivredni fakultet u Novom Sadu, 2015. https://www.cris.uns.ac.rs/record.jsf?recordId=95676&source=NDLTD&language=en.

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<p>Ve&scaron;tačko osemenjavanje (VO) je najznačajnija reproduktivna biotehnologija u<br />intenzivnoj proizvodnji svinja. Efikasan izbor visoko fertilnih genetski superiornih<br />nerastova i visok fertilitet ve&scaron;tački osemenjenih krmača, ima veliki ekonomski uticaj na<br />efikasnost praktične primene ove biotehnologije. Međutim, prethodna istraživanja<br />pokazuju da procena klasičnih parametara fertiliteta ejakulata (koncentracija, ukupan<br />broj, pokretljivost i morfologija spermatozoida) nisu dovoljni pokazatelji fertiliteta i<br />reproduktivne performanse nerastova. Sa druge s

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13

Melo, Cely Marini. "Efeito do armazenamento por 24 horas em diferentes sistemas de refrigeração sobre a viabilidade e fertilidade de sêmen congelado eqüino /." Botucatu : [s.n.], 2005. http://hdl.handle.net/11449/98224.

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Orientador: Frederico Ozanam Papa<br>Resumo: O presente estudo objetivou a colheita do sêmen de garanhões nos haras, diluição e transporte destas amostras em dois sistemas de refrigeração (Equitainerâ e Max-Semen Expressâ) para os centros especializados onde foram submetidos ao processo de congelação. No Experimento I foi utilizado 01 ejaculado de 12 garanhões de diferentes raças. Após a colheita os ejaculados foram divididos em duas alíquotas: uma submetida ao processo de congelação convencional, utilizando o meio diluidor Botu-Crioâ e outra diluída com Botu-Semenâ e armazenada em Equitainerâ

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14

Peris, Soliman. "Semen cryopreservation facilitates sperm DNA damage : relationship between sperm DNA stability and fertility in vivo." Thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25242/25242.pdf.

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15

Munkittrick, Thomas Wright. "The viability and fertility of bovine spermatozoa encapsulated in microcapsules and microgels." Thesis, Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/53237.

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Four experiments were conducted to evaluate the viability and fertility of bovine spermatozoa encapsulated in microcapsules and microgels. In Experiment I, one of two morphologically distinct sperm types i.e. marker or unmarked bull spermatozoa (100 x 10⁶ sperm/bull) were encapsulated in protamine sulfate microcapsules and simultaneously inseminated with the reciprocal sperm type unencapsulated. Insemination of both sperm types unencapsulated served as a control. Accessory sperm embedded in the zona pellucida were counted and morphologically classified 6 to 7 d post insemination. From microenc

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16

Felício, Gabriel Barcellos [UNESP]. "Efeito da substituição da gema de ovo pela lecitina de soja na criopreservação de sêmen equino." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/98261.

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Made available in DSpace on 2014-06-11T19:29:17Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-11-03Bitstream added on 2014-06-13T19:38:33Z : No. of bitstreams: 1 felicio_gb_me_botfmvz.pdf: 193754 bytes, checksum: 08b79f22861822c2b5ed82d28f43112c (MD5)<br>Universidade Estadual Paulista (UNESP)<br>O objetivo do presente trabalho foi verificar a eficiência na congelabilidade e fertilidade da substituição da gema de ovo pela lecitina de soja no diluidor comercial Botu-Crio® (BC). Foram realizados dois experimentos laboratoriais e os respectivos testes de fertilidade. No experimento I co

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17

Kelso, Karen Anne. "The lipid and fatty acid composition of semen in relation to fertility in the male animal." Thesis, University of Glasgow, 1997. http://theses.gla.ac.uk/2145/.

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Spermatozoa are highly specialised cells which display a range of unique features associated with their crucial function of egg fertilisation. One of the most striking characteristics of spermatozoa, in biochemical terms, is the extremely high proportion of long chain highly polyunsaturated fatty acids present as components of the plasma membrane phospholipids. This high degree of unsaturation is almost unique amongst animal cells; the only other cell types which display similar levels of these polyunsaturates are the neurons of the brain and retina. The reason why spermatozoa exhibit such an

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18

Thabo, Molekwa Julian. "Relationships between cock semen viability and the fertility of artificially inseminated South African indigenous chicken breeds." Thesis, [Bloemfontein?] : Central University of Technology, Free State, 2007. http://hdl.handle.net/11462/106.

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Thesis (M. Tech.) -- Central University of Technology, Free State, 2007<br>Four different South African indigenous (Naked Neck (NN), Ovambo (OVB), Venda (VD) and Potchefstroom Koekoek (PK) chicken breeds were used in this study. From each of the four breeds of chicken, 40 hens and 8 cocks were selected randomly. Two groups each of sixteen cocks were subsequently formed: high performing (HP) and low performing (LP) groups to determine the relationships between cock semen viability and the fertility of artificially inseminated South African indigenous layer breeds. Semen was collected following

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19

Melo, Cely Marini [UNESP]. "Efeito do armazenamento por 24 horas em diferentes sistemas de refrigeração sobre a viabilidade e fertilidade de sêmen congelado eqüino." Universidade Estadual Paulista (UNESP), 2005. http://hdl.handle.net/11449/98224.

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Made available in DSpace on 2014-06-11T19:29:16Z (GMT). No. of bitstreams: 0 Previous issue date: 2005Bitstream added on 2014-06-13T20:19:18Z : No. of bitstreams: 1 melo_cm_me_botfmvz.pdf: 389152 bytes, checksum: 52f4660d8a824ec69f5da057ff38ce65 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>O presente estudo objetivou a colheita do sêmen de garanhões nos haras, diluição e transporte destas amostras em dois sistemas de refrigeração (Equitainerâ e Max-Semen Expressâ) para os centros especializado

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20

Gil, Laureiro Jorge. "Fertility of frozen ram semen under field conditions : with special reference to influence of extenders and freezing procedures /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2001. http://epsilon.slu.se/avh/2001/91-576-5941-9_1+2.pdf.

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21

Tate, Andrew E. "Maturation, spawning and fertility of hybrid striped bass (Morone chrysops x Morone saxatilis) exposed to 6- and 9-month photothermal cycles." Thesis, This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-02132009-170956/.

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22

Bicudo, Luana de Cássia. "Caracterização das subpopulações e atributos espermáticos como método preditivo de desempenho na produção in vitro de embriões em bovinos." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/10/10131/tde-27112018-144800/.

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A predição do desempenho de touros na produção in vitro de embriões (PIVE), pela avaliação seminal, não está plenamente estabelecida. Com este estudo, objetivou-se caracterizar as diferenças nos atributos espermáticos de touros com baixo e alto desempenho, baseado nas taxas de clivagem e de blastocisto, visando estabelecer métodos preditivos de maior eficiência na PIVE. A partir do histórico de três anos da empresa In Vitro Brasil®, foram selecionados touros que haviam resultado nas menores e maiores taxas de clivagem e de blastocisto, estabelecendo-se 4 grupos experimentais: baixa taxa de

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23

Villaverde, Ana Izabel Silva Balbin [UNESP]. "Comparação ente dois métodos de inseminação artificial utilizando sêmem congelado em gatos domésticos(Felis catus)." Universidade Estadual Paulista (UNESP), 2007. http://hdl.handle.net/11449/106697.

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Made available in DSpace on 2014-06-11T19:35:47Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-02-27Bitstream added on 2014-06-13T21:08:05Z : No. of bitstreams: 1 villaverde_aisb_me_botfmvz.pdf: 995611 bytes, checksum: 95781868451ff6d5037fde5a7435a721 (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>O objetivo deste estudo foi comparar a eficiência das técnicas de inseminação artificial intra-vaginal (IAIV) e intra-uterina (IAIU) com sêmen congelado/descongelado em gatos domésticos através da taxa de prenhez. O ejaculado de dois gatos adultos foi colhido com

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24

PIZZI, GIULIA. "EVALUATION OF ENVIRONMENTAL FACTORS ON CANINE REPRODUCTION AND FERTILITY: INNOVATIVE STRATEGIES." Doctoral thesis, Università degli Studi di Milano, 2023. https://hdl.handle.net/2434/950973.

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Fertility assessment is challenging both in human and canine species because it is defined by a combination of numerous genetic and environmental factors. In recent decades, a decline in humans fertility occurred and was related to environmental pollutants, such as endocrine disruptor chemicals (EDCs), that increased dramatically as result of technological development. Living close to their owners, dogs are exposed to similar risks whose impact on their reproduction is still unclear. Many widespread compounds may interfere with canine reproductive health from embryonic development up to concep

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25

Kavak, Ants. "Evaluation of sperm production, testicular measurements and post-thaw sperm quality in Tori and Estonian breed stallions /." Uppsala : Dept. of Obstetrics and Gynaecology, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/9329559.pdf.

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26

Tusell, Palomero Llibertat. "Exploring the genetics of the efficiency of fertile AI dose production in rabbits." Doctoral thesis, Universitat Politècnica de València, 2011. http://hdl.handle.net/10251/11842.

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Exploring the genetics of the efficiency of fertile AI dose production in rabbits The general aim of this thesis has been to analyse sources of variation for some of the most important components of fertile artificial insemination (AI) dose production in order to explore the interest and limitations of different strategies for their genetic improvement in a paternal line of rabbits selected for growth rate. These components refer to seminal production and quality traits, being considered the male reproductive performance (fertility and prolificacy) as the final expression of the effect of the

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27

Nothling, Johan O. "The effect of the addition of autologous prostatic fluid on the fertility of frozen-thawed dog semen after intravaginal insemination." Diss., University of Pretoria, 1995. http://hdl.handle.net/2263/59908.

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28

Gueniat, Nicole. "Relations between the sperm chromatin structure assay and conventional semen quality and fertility parameters of Swiss bulls used for artificial insemination /." [S.l : s.n.], 1988. http://www.ub.unibe.ch/content/bibliotheken_sammlungen/sondersammlungen/dissen_bestellformular/index_ger.html.

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29

Klein, Jean-Philippe. "Évaluation de l’impact des nanoparticules et de l’aluminium sur la fonction de reproduction masculine." Thesis, Saint-Etienne, 2015. http://www.theses.fr/2015STET005T/document.

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Depuis quelques décennies une diminution de la qualité du sperme a été constatée dans la majorité des pays occidentaux. Si les raisons de cette diminution sont encore incomplètement comprises, des facteurs environnementaux pourraient y contribuer grandement. Parmi eux, l’exposition à certains matériaux, comme les nanomatériaux et l’aluminium, a grandement augmenté durant cette même période. Notre objectif a donc été d’évaluer l’impact de ces expositions sur la fonction de reproduction masculine. Pour ce faire, nous avons réalisé deux études de la biodistribution testiculaire des particules apr

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30

Hallap, Triin. "Assessment of sperm attributes of frozen-thawed AI doses from Swedish and Estonian dairy bull sires : with special reference to pre-selection through swim-up, and the influence of age on potential fertility /." Uppsala : Dept. of Clinical Sciences, Swedish University of Agricultural Sciences, 2005. http://epsilon.slu.se/2005113.pdf.

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31

Blais, Louis. "The evaluation of spermatozoal damage done at each step of the cryopreservation procedure from a line of chicken selected for high fertility, of frozen-thawed semen and a random, bred control line /." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61847.

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32

Zorzi, Patricia de Moraes de. "Comparação entre os critérios de análise seminal da OMS de 1999 e de 2010 e contagem total de espermatozoides móveis." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/143091.

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Introdução: Em torno de 15% dos casais apresentam o diagnóstico de infertilidade, sendo que 50% se devem a fatores masculinos. Diversos testes de função espermática são propostos para a avaliação da fertilidade, mas o espermograma é o principal exame para o diagnóstico de infertilidade masculina. O valor prognóstico das características seminais como concentração, morfologia e motilidade como marcadores de infertilidade masculina é confundido. A avaliação desses e a classificação quanto à normalidade dos mesmos permanece sendo tema de discussão frequente. Objetivos: Comparar as diferentes class

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33

Nadir, Sher. "Effect of high and low dosage of fresh and frozen semen on accessory sperm number, fertility and embryo quality in artificially inseminated cattle." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-10222009-125208/.

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34

McDonald, Kristina Marie. "Mycoplasma bovigenitalium qPCR Detection and Multilocus Sequence Typing Strain Differentiation." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1482317197896844.

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35

Robinson, Callum Andrew. "The cryopreservation of human semen, and subsequent evaluation of a commercially-available device to isolate motile sperm." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2018. https://ro.ecu.edu.au/theses/2146.

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The cryopreservation of human semen is a vital asset in assisted reproductive technologies (ART). Although advances have been in the freezing of sperm, further refinement is both necessary and ongoing. Computer-assisted semen analysis (CASA) has been increasingly utilised in both research and diagnostic however there are a range of variables that must first be controlled in order to produce reliable measurements. Following thawing, sperm must be isolated from both the original seminal plasma and the cryoprotectants; the two most used isolation methods include density gradient centrifugation (D

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36

Siqueira, Jeanne Broch. "Relação da fertilidade de sêmen bovino congelado com testes de avaliação espermática in vitro." Universidade Federal de Viçosa, 2004. http://locus.ufv.br/handle/123456789/5034.

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Made available in DSpace on 2015-03-26T13:46:52Z (GMT). No. of bitstreams: 1 texto completo.pdf: 290398 bytes, checksum: fcac0b1c33f378861ed137c93a04628c (MD5) Previous issue date: 2004-03-05<br>Universidade Federal do Espírito Santo<br>The objective of this study was evaluate the relationship between complementary tests (hypoosmotic swelling test - HOST, thermo resistance test - TRT, and acrossome reaction test AR test) with the conventional evaluation tests (physical and morphologic aspects) of bovine frozen/thawed semen, the values were correlated with the conception rate. Twenty-three

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Terraciano, Paula Barros. "Criopreservação de espermatozóides eqüinos comparando duas curvas de congelamento combinadas com diluentes comerciais: uma análise laboratorial." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2008. http://hdl.handle.net/10183/15887.

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Durante o processo de criopreservação de sêmen, os espermatozóides sofrem alguns danos que resultam na diminuição da fertilidade deste. O presente estudo foi realizado a fim de avaliar o efeito da utilização, combinada de duas curvas de congelamento com dois diluentes comerciais sobre a criopreservação de sêmen eqüino. Foram analisados 20 ejaculados. As amostras foram avaliadas, pela motilidade progressiva e total do sêmen pós-descongelamento e pela integridade e funcionalidade da membrana dos espermatozóides. A combinação entre curva automatizada e Botu- Crio® apresentou as maiores médias, na

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38

Gentis, Roxanne. "A controlled randomised study to compare the IUI biochemical pregnancy outcome between a routine swim-up and the Sep-D Kit semen preparation method." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/80098.

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Thesis (MScMedSc)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: Male factor infertility is a general term that describes couples in which an inability to conceive is associated with a problem identified in the male partner. Intrauterine insemination (IUI) together with ovulation induction has been shown to be an effective treatment method for male factor infertility. Oocyte production by the ovaries is stimulated by the use of fertility drugs. A prepared sperm sample is then injected into the uterus through the vagina using an IUI catheter which brings the oocytes and spermatozoa into c

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39

Goularte, Karina Lemos. "Sistema de gestão da qualidade para Centros de Coleta e Processamento de Sêmen bovino: elaboração, implantação e impacto." Universidade Federal de Pelotas, 2014. http://repositorio.ufpel.edu.br/handle/ri/2517.

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Made available in DSpace on 2014-08-20T14:37:55Z (GMT). No. of bitstreams: 1 tese_karina_lemos_goularte.pdf: 3530828 bytes, checksum: ee940571a94dfd9dfaf6d9f911e7e113 (MD5) Previous issue date: 2014-02-17<br>Although more than 12 million doses of bull frozen semen were sold in Brazil in 2012, the production process of the doses sold by the artificial insemination centers registered in the Ministry of Agriculture, Livestock and Supply is not yet standardized. The hypothesis of the present study is that the design and implementation of a hazard analysis and critical control points (HACCP) sy

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40

Zhang, Bing Rong. "Evaluation of frozen-thawed semen from Swedish Red and White AI bulls : with special reference to the relation between zona pellucida binding, in vitro fertilization and in vivo fertility /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1998. http://epsilon.slu.se/avh/1998/91-576-5436-0.gif.

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41

Félix, Maria Inês Pires. "Vantagens da adição de antioxidantes ao diluidor para conservação de sémen de suíno." Master's thesis, Universidade de Lisboa, Faculdade de Medicina Veterinária, 2021. http://hdl.handle.net/10400.5/21232.

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Dissertação de Mestrado Integrado em Medicina Veterinária<br>Os suínos são animais extremamente sensíveis ao stress térmico, tendo as altas temperaturas efeitos negativos sobre os parâmetros reprodutivos das fêmeas e a qualidade do sémen dos machos. Esta influência negativa sobre os parâmetros espermáticos, assim como a diminuição da qualidade das doses de sémen durante o armazenamento, deve-se em parte às espécies reativas de oxigénio, que quando em excesso causam stress oxidativo e têm uma série de consequências, nomeadamente a diminuição da motilidade dos espermatozóides e a instabili

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Canisso, Igor Frederico. "Comportamento sexual, parâmetros seminais e fertilidade do sêmen congelado de jumentos (Equus asinus) da raça Pêga." Universidade Federal de Viçosa, 2008. http://locus.ufv.br/handle/123456789/5587.

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Made available in DSpace on 2015-03-26T13:54:43Z (GMT). No. of bitstreams: 1 texto completo.pdf: 1004471 bytes, checksum: 1dceb46ca18407dce4f04e42ee189e86 (MD5) Previous issue date: 2008-06-13<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>This dissertation is compounded for four trials. Experiment 1: This paper describes field results of some sexual behavior characteristics shown by donkeys when using an estrous mare for semen collection. Six donkeys (J: 1, 2, 3, 4, 5, 6) (Pêga breed), 3.5 16 year old and body weight from 230 to 330 kg. The jacks were conditioned to bre

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Sancho, Badell Sílvia. "Efectes del fotoperíode sobre la qualitat espermàtica de mascles porcins Sus domesticus." Doctoral thesis, Universitat de Girona, 2002. http://hdl.handle.net/10803/7615.

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En el presente estudio se analizan los efectos de los fotoperiodos ambientales de otoño e invierno y los fotoperiodos experimentales de 24, 12 y 0 horas de luz artificial sobre la calidad del semen de machos reproductores porcinos de raza Landrace.<br/>El estudio se realizó sobre 30 machos postpuberales de 8 meses de edad y testados con el fin de comprobar la homogeneidad. Los machos fueron distribuidos aleatóriamente en los 3 grupos de luz artificial durante 3 meses. El tratamiento de 12 horas de luz artificial fue considerado como grupo control. Previamente al inicio de cada tratamiento, se

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Reis, Juliana Domingos Archanjo dos. "Influência do clima nas características do sêmen e na composição proteica do plasma seminal em zebus e taurinos." Universidade do Oeste Paulista, 2013. http://bdtd.unoeste.br:8080/tede/handle/tede/285.

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Made available in DSpace on 2016-01-26T18:55:38Z (GMT). No. of bitstreams: 1 Juliana Domingos Archanjo dos Reis.pdf: 354121 bytes, checksum: 0cd34b34c6da8a41a0682be81e391638 (MD5) Previous issue date: 2013-09-23<br>Seminal plasma is a complex of secretions of the accessory reproductive organs of males with effects on sperm function. The quality of seminal plasma proteins may contribute to the fertility of bulls. The aim of this study was to determine the influence of season on the morphologic characteristics of the testes, epididymis, sperm and seminal plasma proteins by SDS-PAGE in Bos taur

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Farias, Lidia Dutra. "Adição de ácido docosahexaenóico (DHA) e ácido eicosanóico (EPA) em meio diluente na criopreservação de sêmen de garanhões da raça crioula." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/181412.

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Em equinos é descrita uma variabilidade na qualidade do sêmen congelado, relacionada principalmente a variações consideráveis na composição da membrana plasmática do espermatozoide. Neste contexto, estudos investigam alternativas para aumentar a fertilidade ao se usar sêmen congelado, e a adição de ácidos graxos polinsaturados ao diluente de congelamento é sugerida. O objetivo deste estudo foi avaliar o efeito da adição de diferentes níveis de ácidos graxos poli-insaturados: ácido eicosanóico e ácido docosahexaenóico, em meio diluente específico para a espécie sobre as características do esper

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Stefopoulou, Sofia N. "Studies on reproductive traits of the male pig with particular emphasis on artificial insemination of the female : 1. Growth and development aspects of the boar and factors affecting male fertility 2. Semen evaluation." Thesis, University of Aberdeen, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327421.

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Tiseo, Bruno Camargo. "Avaliação da função hormonal reprodutiva, parâmetros seminais e da fragmentação do DNA dos espermatozoides em pacientes com lúpus eritematoso sistêmico." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/5/5153/tde-27092018-101041/.

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Introdução: O lúpus eritematoso sistêmico (LES) é uma doença crônica autoimune com predomínio no sexo feminino e com evidente impacto em sua fertilidade. Por sua vez, em homens com LES foi observado alterações nos parâmetros seminais e nos níveis de hormônios sexuais. A análise seminal somente apresenta baixa correlação com potencial de fertilidade dos pacientes. Recentemente, a análise da integridade do DNA do espermatozoide tem mostrado melhor capacidade prognóstica para predizer a fertilidade do que os parâmetros seminais convencionais. Objetivo: Avaliar a fragmentação do DNA espermático de

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Cocuzza, Marcello Antonio Signorelli. "Avaliação do impacto da varicocele clínica no volume testicular, parâmetros seminais e níveis de radicais livres de oxigênio no sêmen de homens com fertilidade comprovada." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/5/5153/tde-27102011-153419/.

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Apesar da maioria dos estudos mostrarem que parâmetros seminais anormais, redução do volume testicular e elevação dos níveis de radicais livres de oxigênio (ROS) no sêmen estão associados à presença de varicocele em homens inférteis, a maioria dos homens com varicocele apresenta os parâmetros seminais normais e são capazes de estabelecer gravidez em suas esposas. Nesse sentido, a avaliação desses parâmetros ainda não foi adequadamente estudada em homens com fertilidade comprovada e que apresentam varicocele. Esse estudo teve como objetivo estudar o impacto da varicocele clínica em homens férte

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Selles, Soriano Elena. "Evaluación de la capacidad fecundante de espermatozoides porcinos refrigerados y congelados." Doctoral thesis, Universidad de Murcia, 2008. http://hdl.handle.net/10803/10859.

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Este trabajo se ha centrado en el estudio de diferentes factores que afectan a la capacidad fecundante del semen congelado, como la velocidad de descongelación y el sistema antioxidante del semen porcino. También se ha estudiado la capacidad predictiva de la fertilidad in vivo que tienen las diferentes técnicas de análisis seminal tanto para el semen congelado como en condiciones de campo para el semen refrigerado. Se pudo determinar que la velocidad de descongelación más rápida tiene un efecto positivo sobre la funcionalidad espermática de las muestras evaluada mediante un sistema de FIV. Ig

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Corcini, Carine Dahl. "Estudo de testes in vitro para predição de fertilidade de machos mamíferos." Universidade Federal de Pelotas, 2010. http://guaiaca.ufpel.edu.br/handle/123456789/1273.

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Made available in DSpace on 2014-08-20T13:32:55Z (GMT). No. of bitstreams: 1 tese_carine_dahl_corcini.pdf: 732454 bytes, checksum: 17c0395123a3b5438e40b167f5247599 (MD5) Previous issue date: 2010-06-25<br>The knowledge of the reproductive potential of a male has economical and reproductive importance, especially if he is used in artificial insemination programs. The conventional assays for evaluating seminal quality do not have the capacity of measuring the fertilizing potential of a sample, they only indicate if it is within the acceptable parameters for insemination, according to the

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