Previous investigators demonstrated that epididymal white adipose tissue (EWAT) lipectomy suppressed spermatogenesis and caused atrophy of the seminiferous tubules. EWAT lipectomy, however, may disrupt testicular innervation, which reportedly compromises testicular function. To resolve this confound and better clarify the role of EWAT in spermatogenesis, three experimental groups of hamsters were created in which: i.) the superior and inferior spermatic nerves were transected (SSNx) at the testicular level, ii.) EWAT was extirpated (EWATx), and iii.) testicular nerves and EWAT were left intact (SHAM controls). It was hypothesized that transection of the superior and inferior spermatic nerves would disrupt normal spermatogenesis. The findings indicate a significant reduction in spermatogenic activity and marked seminal tubule atrophy within the EWATx testis, as compared to the SSNx and controls testes, which did not differ significantly from each other. From these data, it is concluded that EWAT, and not testicular innervation, is central to normal spermatogenesis.

Orientador: Sony Dimas Bicudo / Banca: Rui Machado / Banca: Jairo Pereira Neves / Banca: César Roberto Esper / Banca: Cezinande de Meira / Resumo: Objetivando testar a ação do colesterol, desmosterol, ácido oléico-linoléico ou Q-Iactoalbumina sobre os espermatozóides ovinos, alíquotas de sêmen de 25 carneiros foram submetidas à criopreservação após tratamento com essas substâncias. O sêmen foi avaliado antes do processamento e após a refrigeração, descongelação e incubação quanto à, cinética pela análise subjetiva e computadorizada (CASA), morfologia, avaliação simultânea da integridade da membrana plasmática (IMP) e do acrossomo (IAC) e do potencial de membrana mitocondrial (PMM) pela associação da aglutinina de Pisum sativum conjugada ao isotiocianato de fluoresceína (FITC-PSA), iodeto de propídio (PI) e JC-1 e, status de capacitação pela c10rtetraciclina (CTC). A influência dos aditivos em poucos parâmetros não foi suficiente para sugerir a superioridade de qualquer um dos tratamentos. A criopreservação provocou prejuízos à cinética, IMP, IAC, PMM, além de induzir a capacitação e reação do acrossomo. Foram observadas diferenças entre grupos de carneiros quanto ao status de capacitação no sêmen in natura, assim como na sensibilidade desse sêmen à crioinjúria e criocapacitação. Após a descongelação, as mudanças semelhantes à capacitação foram maiores nos animais de menor IMP. A segregação dos carneiros de acordo com a crioresistência da membrana plasmática norteou o comportamento de vários outros parâmetros. Conclui-se, que o colesterol, desmosterol, ácido oléico-linoléico e alactoalbumina não protegem o sêmen ovino contra as crioinjúrias, que a congelação-descongelação é mais danosa que a refrigeração e, que existem diferenças entre grupos de indivíduos relacionadas à crioresistência e criocapacitação espermática. / Abstract: In order to evaluate the proteeting aetion of some substanceson ram spermatozoa, semen samples of 25 rams were colleeted and submitted to cryopreservation after treatment with cholesterol, desmosterol, oleic-linoleic acid or Q-Iactalbumin. Before the processing and after the procedures of cooling, freezing-thawing and incubation, semen was evaluated as to kínetcs by subjective and computerized analyses (CASA), morphology, simultaneously to plasma membrane integrity (PMI), acrosome integrity (ACI) and mitochondrial membrane potential (MMP) by isothiocyanate-conjugated Pisum sativum (FITCPSA), propidium iodide (PI) and JC-1 combination and as to sperm capacitation and acrosome reaction determined by chlortetracycline (CTC) assay. The influence resulted from the additives in a few parameters was not enough to suggest the superiority of any treatments. The cryopreservation process, especially the freezing-thawing, promotes damages to kinetics, PMI, ACI, MMP and induees accelerated eapacitation and acrosome reaction in spermatozoa. Differenees among groups of rams were observed regarding capacitation status in fresh semen as well as the sensibility of their semen to cryoinjury and cryocapacitation. Higher and more accelerated capacitation-like ehanges were observed in groups of rams presenting lower plasmatic membrane cryoresistance after thawing. The segregation of rams in different levels of PMI influenced the behavior of several other parameters. It was concluded that cholesterol, desmosterol, oleic-Iinoleic acid and Q-Iactalbumin do not protect the ram semen against the cryoinjuries as well as freezing-thawing is more harmful than cooling. Important differenees among groups of individuais were noticed as for the spermatozoa resistance to the damages provoked by cryopreservation such as the eryocapacitation susceptibility. / Doutor

Chez l’Homme, les succès de la fécondation et d’un développement embryonnaire aboutissant à la naissance d’un enfant en bonne santé résident principalement dans la qualité des cellules reproductrices. Les dommages oxydants de l’ADN spermatique sont une cause majeure d’infertilité masculine. Afin de permettre une prise en charge thérapeutique optimale et adaptée, j’ai tout d’abord mis au point et validé un test diagnostique de l’oxydation de l’ADN spermatique par immunodétection du 8-hydroxy-2'-desoxyguanosine (8-OHdG), adduit majeur de l'oxydation nucléaire. Ce travail de thèse a déterminé, pour la première fois, un seuil d’oxydation de l’ADN spermatique en relation avec les paramètres conventionnels spermatiques. Dans un second temps, je me suis focalisée sur les atteintes de la chromatine et de l’ADN spermatique les plus fréquentes en cas d’infertilité masculine, à savoir les anomalies de condensation de la chromatine, la fragmentation et l’oxydation de l’ADN spermatique. Une corrélation entre l’oxydation de l’ADN, tout particulièrement la moyenne d’intensité de fluorescence, et le pourcentage de spermatozoïde fragmenté a été mise en évidence. Pour objectiver l’impact de ces dommages nucléaires spermatiques en pratique clinique, j’ai étudié, après cryopréservation, les effets bénéfiques d’une supplémentation en hypotaurine des milieux de sélection et de congélation/décongélation des échantillons. Une baisse de la cryocapacitation et du pourcentage de spermatozoïde fragmenté et décondensé ont été retrouvées ainsi qu’une amélioration de la vitalité et de la mobilité progressive spermatique. Enfin, comme le spermatozoïde a pour but ultime de participer à la genèse d’un nouvel individu, j’ai mis en évidence que la fragmentation et l’oxydation de l’ADN spermatique avaient un impact à des moments clés de la cinétique du développement embryonnaire précoce suite à une ICSI sans pour autant modifier l’obtention de blastocystes de bonne qualité. Ce travail de thèse a permis de mieux comprendre la physiopathologie de l’infertilité masculine et de mettre en évidence de nouveaux biomarqueurs spermatiques en lien avec un développement embryonnaire normal. / In humans, the success of fertilization and embryonic development leading to the birth of ahealthy child lies mainly in the quality of reproductive cells. Oxidative damage to sperm DNAis a major cause of male infertility. In order to provide optimal and appropriate therapeuticmanagement, I first developed and validated a diagnostic test for sperm DNA oxidation byimmunodetection of 8-hydroxy-2'-deoxyguanosine (8-OHdG), a major adduct of nuclearoxidation. This thesis work determined, for the first time, a threshold for the oxidation ofsperm DNA in relation to conventional sperm parameters. In a second step, I focused on themost common chromatin and sperm DNA disorders in male infertility, namely chromatincondensation anomalies, sperm DNA fragmentation and oxidation. A correlation betweenDNA oxidation, particularly the mean fluorescence intensity, and the percentage offragmented sperm was found. To objectify the impact of this nuclear sperm damage inclinical practice, I studied, after cryopreservation, the beneficial effects of hypotaurinesupplementation to the selection and freeze/thaw media of seed samples. A decrease incryocapacitation and the percentage of fragmented and decondensed sperm has beenfound, as well as an improvement in sperm vitality and progressive mobility. Finally, sincethe ultimate goal of the sperm cells is to participate in the genesis of a new individual, I haveshown that the fragmentation and oxidation of sperm DNA has an impact at key moments inthe kinetics of early embryonic development following ICSI without modifying the obtainingof good quality blastocysts. This thesis work has led to a better understanding of thepathophysiology of male infertility and the identification of new sperm biomarkers related tonormal embryonic development.

Submitted by SBI Biblioteca Digital (sbi.bibliotecadigital@puc-campinas.edu.br) on 2018-05-04T14:27:54Z No. of bitstreams: 1 RODRIGO MASELLI THOM? GARCIA.pdf: 1139747 bytes, checksum: 918a44a313fb8cf1d56fef9b097af761 (MD5) / Made available in DSpace on 2018-05-04T14:27:54Z (GMT). No. of bitstreams: 1 RODRIGO MASELLI THOM? GARCIA.pdf: 1139747 bytes, checksum: 918a44a313fb8cf1d56fef9b097af761 (MD5) Previous issue date: 2018-02-28 / Introduction: Acute Scrotum Syndrome is a medical emergency. Some children and adolescents cannot be cared for by a specialist or accustomed to this pathological condition of the acute scrotum, especially torsion of the spermatic cord, also called testicular torsion. Delays in care, misinformation by patients, family members or healthcare professionals can cause irreversible damage to the patient. Objective: to correlate factors that delayed the diagnosis and treatment of acute scrotal syndrome with loss of testis. Method: The charts of 127 patients from March 2007 to May 2017 were analyzed in the Patient Record Services of Hospital e Maternidade Celso Pierro. Patients who underwent surgery are included in the study (n = 71). Patients with incomplete records, age greater than 18 years or who did not undergo surgical treatment were not included in the study (n = 56). Exploratory data analysis was performed through descriptive measures (mean, standard deviation, minimum, median, maximum, frequency and percentage). Orchiectomy and orchidopexy groups were compared using the Mann-Whitney test (age, distance from the house to the hospital, time of symptoms and time in the Hospital e Maternidade Celso Pierro) or Qui-Square (race, agreement, side affected and pr?-hospital care). Factors related to orchiectomy were assessed through Logistic Regression. In the multiple analysis, the variable selection criterion used was stepwise. The level of significance was 5%. Results: Among the 71 patients diagnosed with Acute Scrotum Syndrome undergoing surgery, 22 (31%) were between 0 and 12 years of age and 49 (69%) were older than 12 years. It was evidenced that there is significant difference between the groups for the variables that measure time. The time of symptoms and time of Hospital e Maternidade Celso Pierro is greater for the orchidectomy group. For the other variables, no significant differences were found between groups. The group of patients most submitted to orchiectomy are non-white patients, with no private medical insurance, right testicle affected and without pr?- hospital care. On the other hand, the group of patients most submitted to orchidopexy are the whites, also without private medical care or pre-hospital care and the affected left testicle. The 1 hour increase in symptom time increases the chance of orchiectomy by 4%. The 1 hour increase in Hospital e Maternidade Celso Pierro increases the chance of orchiectomy by 0.2%. Conclusion: Elapsed time of symptoms remains the main factor associated with loss of the testis in Acute Scrotum Syndrome and torsion of the spermatic cord. Even without data with statistical significance, we can also conclude that this study showed that patients with more than 12 years of age, not white, with right side affected, without private medical care and pr?-hospital care are the most submitted to orchiectomy. / Introdu??o: a S?ndrome do Escroto Agudo configura uma emerg?ncia m?dica. Algumas crian?as e adolescentes n?o conseguem ser atendidas por um profissional especializado ou habituado nessa condi??o patol?gica do escroto agudo em especial a Tor??o do Cord?o Esperm?tico, muito chamada tamb?m de tor??o testicular. A demora no atendimento e tratamento desses pacientes, desinforma??o dos pr?prios pacientes, familiares ou profissionais da ?rea da sa?de podem causar danos irrevers?veis ao test?culo. Objetivo: correlacionar fatores que atrasaram o diagn?stico e tratamento da s?ndrome do escroto agudo com a perda do test?culo. M?todo: os prontu?rios de 127 pacientes desde mar?o de 2007 a maio de 2017 foram analisados nos Servi?os de Prontu?rio de Pacientes do Hospital e Maternidade Celso Pierro. Os pacientes que foram submetidos ? cirurgia est?o inclusos no estudo (n=71). Pacientes com prontu?rios incompletos, idade maior que 18 anos ou que n?o foram submetidos ao tratamento cir?rgico n?o foram inclu?dos no estudo (n=56). Foi realizada an?lise explorat?ria de dados atrav?s de medidas descritivas (m?dia, desvio padr?o, m?nimo, mediana, m?ximo, frequ?ncia e porcentagem). Os grupos de orquiectomia e orquidopexia foram comparados atrav?s do teste de MannWhitney (idade, dist?ncia da casa at? o hospital, tempo de sintomas e tempo no Hospital e Maternidade Celso Pierro) ou Qui-Quadrado (etnia, conv?nio, lado acometido e atendimento pr?-hospitalar). Os fatores relacionados ? orquiectomia foram avaliados atrav?s de Regress?o Log?stica. Na an?lise m?ltipla o crit?rio de sele??o de vari?veis usado foi o stepwise. O n?vel de signific?ncia adotado foi de 5%. Resultados: Entre os 71 pacientes avaliados com o diagn?stico de S?ndrome do Escroto Agudo submetidos ? cirurgia, 22 deles (31%) tem idades entre 0 e 12 anos e 49 (69%) tem idades maior que 12 anos. Evidenciou-se que existe diferen?a significativa entre os grupos para as vari?veis que medem tempo. O tempo de sintomas e tempo de Hospital e Maternidade Celso Pierro ? maior para o grupo de orquiectomia. Para as demais vari?veis n?o foram encontradas diferen?as significativas entre os grupos. O grupo de pacientes mais submetidos ? orquiectomia s?o os n?o brancos, sem conv?nio m?dico particular, test?culo direito acometido e sem atendimento pr?-hospitalar. J? o grupo de pacientes mais submetidos ? orquidopexia s?o os brancos, tamb?m sem conv?nio m?dico particular ou atendimento pr?-hospitalar e test?culo esquerdo acometido. O aumento em uma hora no tempo de sintomas aumenta a chance de orquiectomia em 4%. O aumento em 1 hora no tempo de Hospital e Maternidade Celso Pierro aumenta a chance de orquiectomia em 0,2%. Conclus?o: o tempo decorrido de sintomas ainda permanece o principal fator associado ? perda do test?culo na S?ndrome do Escroto Agudo e Tor??o do Cord?o Esperm?tico. Mesmo sem dados com signific?ncia estat?stica, podemos concluir tamb?m que esse estudo mostrou que os pacientes com mais de 12 anos, n?o branco, com lado direito acometido, sem conv?nio m?dico particular e atendimento pr?-hospitalar s?o os mais submetidos ? orquiectomia.

Previous investigators demonstrated that epididymal white adipose tissue (EWAT) lipectomy suppressed spermatogenesis and caused atrophy of the seminiferous tubules. EWAT lipectomy, however, may disrupt testicular innervation, which reportedly compromises testicular function. To resolve this confound and better clarify the role of EWAT in spermatogenesis, three experimental groups of hamsters were created in which: i.) the superior and inferior spermatic nerves were transected (SSNx) at the testicular level, ii.) EWAT was extirpated (EWATx), and iii.) testicular nerves and EWAT were left intact (SHAM controls). It was hypothesized that transection of the superior and inferior spermatic nerves would disrupt normal spermatogenesis. The findings indicate a significant reduction in spermatogenic activity and marked seminal tubule atrophy within the EWATx testis, as compared to the SSNx and controls testes, which did not differ significantly from each other. From these data, it is concluded that EWAT, and not testicular innervation, is central to normal spermatogenesis.

En aquest estudi s'ha determinat que al augmentar el ritme d'extraccions de semen es produeixen canvis en el patró d'absorció i secreció del fluid epididimari, que provoquen alteracions en la maduració epididimaria dels espermatozoides i un desenvolupament anòmal de la motilitat espermàtica.La concentració de glutamat i carnitina al fluid epididimari augmenten al llarg del conducte epididimari, alhora que la concentració de myo-inositol disminueix. El contingut de myo-inositol a l'interior dels espermatozoides disminueix, mentre que el contingut de glutamat augmenta a partir del caput distal i el contingut de carnitina no varia al llarg del conducte. S'ha determinat la presència de la ruta del poliol a l'epidídim de porcí. Els resultats obtinguts indiquen que la glucosa difon de la sang cap al fluid epididimari, és convertida a sorbitol per l'aldosa reductasa, i aquest sorbitol s'acumula al fluid luminal i és convertit a fructosa per l'acció de la sorbitol deshidrogenasa. / A high semen collection frequency brought about an altered resorption and secretion pattern of the epididymal fluid, which results in defective sperm maturation and abnormal development of sperm motility. In this study, it has been determined that in epididymal fluid the concentration of myo-inositol decreased in a proximo-distal direction, whereas intraluminal concentrations of L-carnitine and L-glutamate increased distally. The content of inositol in spermatozoa fell as they moved from the distal caput whereas sperm glutamate increased from the distal caput to more distal regions and carnitine content remained unchanged during epididymal transit. In this study, evidence for an operative polyol pathway was demonstrated in the porcine epididymis. The results found are consistent with diffusion of circulating glucose into the lumen, its conversion via aldose reductase to sorbitol which accumulates in the lumen and the action of sorbitol dehidrogenase on sorbitol to produce fructose.

Made available in DSpace on 2014-06-11T19:35:12Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-11-24Bitstream added on 2014-06-13T20:06:44Z : No. of bitstreams: 1 azevedo_hc_dr_botfmvz.pdf: 1090855 bytes, checksum: bd7f7a04aa00c86d1200aecb917ca794 (MD5) / Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / Objetivando testar a ação do colesterol, desmosterol, ácido oléico-linoléico ou Q-Iactoalbumina sobre os espermatozóides ovinos, alíquotas de sêmen de 25 carneiros foram submetidas à criopreservação após tratamento com essas substâncias. O sêmen foi avaliado antes do processamento e após a refrigeração, descongelação e incubação quanto à, cinética pela análise subjetiva e computadorizada (CASA), morfologia, avaliação simultânea da integridade da membrana plasmática (IMP) e do acrossomo (IAC) e do potencial de membrana mitocondrial (PMM) pela associação da aglutinina de Pisum sativum conjugada ao isotiocianato de fluoresceína (FITC-PSA), iodeto de propídio (PI) e JC-1 e, status de capacitação pela c10rtetraciclina (CTC). A influência dos aditivos em poucos parâmetros não foi suficiente para sugerir a superioridade de qualquer um dos tratamentos. A criopreservação provocou prejuízos à cinética, IMP, IAC, PMM, além de induzir a capacitação e reação do acrossomo. Foram observadas diferenças entre grupos de carneiros quanto ao status de capacitação no sêmen in natura, assim como na sensibilidade desse sêmen à crioinjúria e criocapacitação. Após a descongelação, as mudanças semelhantes à capacitação foram maiores nos animais de menor IMP. A segregação dos carneiros de acordo com a crioresistência da membrana plasmática norteou o comportamento de vários outros parâmetros. Conclui-se, que o colesterol, desmosterol, ácido oléico-linoléico e alactoalbumina não protegem o sêmen ovino contra as crioinjúrias, que a congelação-descongelação é mais danosa que a refrigeração e, que existem diferenças entre grupos de indivíduos relacionadas à crioresistência e criocapacitação espermática. / In order to evaluate the proteeting aetion of some substanceson ram spermatozoa, semen samples of 25 rams were colleeted and submitted to cryopreservation after treatment with cholesterol, desmosterol, oleic-linoleic acid or Q-Iactalbumin. Before the processing and after the procedures of cooling, freezing-thawing and incubation, semen was evaluated as to kínetcs by subjective and computerized analyses (CASA), morphology, simultaneously to plasma membrane integrity (PMI), acrosome integrity (ACI) and mitochondrial membrane potential (MMP) by isothiocyanate-conjugated Pisum sativum (FITCPSA), propidium iodide (PI) and JC-1 combination and as to sperm capacitation and acrosome reaction determined by chlortetracycline (CTC) assay. The influence resulted from the additives in a few parameters was not enough to suggest the superiority of any treatments. The cryopreservation process, especially the freezing-thawing, promotes damages to kinetics, PMI, ACI, MMP and induees accelerated eapacitation and acrosome reaction in spermatozoa. Differenees among groups of rams were observed regarding capacitation status in fresh semen as well as the sensibility of their semen to cryoinjury and cryocapacitation. Higher and more accelerated capacitation-like ehanges were observed in groups of rams presenting lower plasmatic membrane cryoresistance after thawing. The segregation of rams in different levels of PMI influenced the behavior of several other parameters. It was concluded that cholesterol, desmosterol, oleic-Iinoleic acid and Q-Iactalbumin do not protect the ram semen against the cryoinjuries as well as freezing-thawing is more harmful than cooling. Important differenees among groups of individuais were noticed as for the spermatozoa resistance to the damages provoked by cryopreservation such as the eryocapacitation susceptibility.

Made available in DSpace on 2017-07-10T18:13:17Z (GMT). No. of bitstreams: 1 Mauricio Spagnolo Adames.pdf: 2594661 bytes, checksum: 4bbc4710428addfb51d141108a994f72 (MD5) Previous issue date: 2014-03-31 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The aim of this study was to evaluate the effects of fructose as a modulator of sperm movement on the optimization of the sperm: oocyte in artificial reproduction procedures with the use of cryopreserved semen in Rhamdia quelen. Through the Computer Assisted Sperm Analysis (CASA) were evaluated in four replicas the motility rates, speed and time of sperm activation of the cryopreserved semen after thawing (10 seconds after activation) into six activating solutions containing fructose, concentrated at 0.0; 0.9; 1.8; 2.7; 3.6 and 4.5%. For the testing of fertilization an factorial experimental design (5 x 6) composed of five sperm:oocyte ratio (1x104, 3x104, 5x104, 7x104 e 9x104), six activating solutions containing fructose (0.0; 0.9; 1.8; 2.7; 3.6 and 4.5%) and three replicas or experimental blocks ("pools" of oocytes from three female groups). The effects were evaluated over variable rates of fertilization, hatching and larval normality. In the evaluation of sperm variables a regression analysis showed effect (p<0,05) of the solutions in motility, speed and duration of sperm activation. It was also verified effect (p<0,05) in the index obtained from clustering of such variables called index of sperm movement, with results of theoretical peak performance when 2.85% of fructose in solutions was employed. In the fertilization assay the analysis of response surface showed interactive effect (p<0.05) between sperm:oocyte ratio and fructose concentrations in activating solutions, on the fertilization and hatching rates and of the clustering index of two variables called index of reproductive success. According to the statistical model, sperm:oocyte ratio can be reduced keeping up the rates of fertilization and hatching. The inclusion of fructose in activating solutions has promoted similar theoretical maximum levels for fertilization and hatching when compared to fertilization only in distilled water, however with a saving of 17.77% of mobile spermatozoa: oocyte. The larval normality showed effect (p<0.05) just for the block. It is concluded that the sperm:oocyte ratio can be reduced through the employment of fructose-based activating solutions, without affecting the fertilization, hatching rates and larval normality. / O objetivo deste estudo foi avaliar os efeitos da frutose como modulador do movimento espermático sobre a otimização da relação espermatozoide:ovócito em procedimentos de reprodução artificial com o uso do sêmen do Rhamdia quelen criopreservado. Através do Computer Assisted Sperm Analysis (CASA) foram avaliadas em quatro réplicas a motilidade, a velocidade e o tempo de duração da ativação espermática do sêmen criopreservado após o descongelamento (10 segundos após a ativação) em seis soluções ativadoras contendo frutose na concentração de 0,0; 0,9; 1,8; 2,7; 3,6 e 4,5%. Para o ensaio de fertilização foi aplicado um delineamento experimental em esquema fatorial (5 x 6) composto de cinco relações espermatozoides:ovocito (1x104, 3x104, 5x104, 7x104 e 9x104), seis soluções ativadoras contendo frutose (0; 0,9; 1,8; 2,7; 3,6 e 4,5%) e três replicas ou blocos experimentais ( pools de ovócitos provenientes de três grupos fêmeas). Os efeitos foram avaliados sobre as taxas de fertilização, eclosão e normalidade larval. Na avaliação das variáveis espermáticas, a análise de regressão mostrou efeito (p<0,05) das soluções na motilidade, velocidade e tempo de duração da ativação espermática. Também foi verificado efeito (p<0,05) no índice obtido pelo agrupamento destas variáveis, denominado de índice de movimento espermático, com resultados de máximo desempenho teórico quando empregado 2,85% de frutose na solução ativadora. No ensaio de fertilização a analise de superfície de resposta mostrou efeito interativo (p<0,05) entre a relação espermatozoides:ovócito e as concentrações de frutose das soluções ativadoras, sobre as taxas de fertilização e de eclosão e do índice de agrupamento das duas variáveis denominado índice de sucesso reprodutivo. De acordo com o modelo estatístico a relação espermatozoides:ovócito foi reduzida mantendo-se as taxas de fertilização e eclosão. A inclusão de frutose nas soluções ativadoras promoveu níveis máximos teóricos semelhantes para fertilização e eclosão quando comparada à fertilização apenas em água destilada, porém com uma economia de 17,77% de espermatozoides móveis. A normalidade larval apresentou efeito (p<0,05) apenas do bloco. Conclui-se que a relação espermatozóides:ovócito pode ser reduzida através do emprego de soluções ativadoras a base de frutose, sem causar prejuízos ás taxas de fertilização e eclosão e normalidade larval.