Please use this identifier to cite or link to this item: https://rima.ufrrj.br/jspui/handle/20.500.14407/14274
Full metadata record
DC FieldValueLanguage
dc.contributor.authorMello, Daniela de
dc.date.accessioned2023-12-22T02:58:41Z-
dc.date.available2023-12-22T02:58:41Z-
dc.date.issued2015-06-29
dc.identifier.citationMELLO, Daniela de. Avaliação da perfusão vascular e da concentração de colesterol e estrógeno nos folículos pré-ovulatórios de éguas Mangalarga Marchador submetidas às condições de desconforto térmico. 2015. 19 f. Dissertação (Mestrado em Medicina Veterinária, Patologia e Ciências Clínicas) - Instituto de Veterinária, Universidade Federal Rural do Rio de Janeiro, Seropédica-RJ, 2015.por
dc.identifier.urihttps://rima.ufrrj.br/jspui/handle/20.500.14407/14274-
dc.description.abstractO objetivo do presente estudo foi avaliar o padrão de perfusão sanguínea de folículos dominantes submetidos à indução da ovulação com hCG por meio da ultrassonografia Collor Doppler e os níveis de colesterol e estrógeno em folículos pré-ovulatórios de éguas submetidas ou não ao desconforto térmico. Para tanto, 15 ciclos estrais de éguas distribuídas aleatoriamente entre os grupos conforto (Grupo I) e desconforto térmico (Grupo II) foram acompanhados por ultrassonografia transretal periodicamente até que o maior folículo atingisse diâmetro maior ou igual a 32 mm, momento no qual as éguas receberam 1000 UI de Chorulon® (hCG), e tiveram o folículo pré-ovulatório acompanhado por ultrassonografia Doppler de 6 em 6 horas, até 24 horas, momento em que foram realizadas as aspirações do fluido folicular para dosagem de colesterol e de estrógeno. A perfusão vascular folicular foi estimada de maneira subjetiva levando-se em consideração o percentual da circunferência da parede folicular com sinais Doppler coloridos. O fluido folicular aspirado foi recuperado em frascos tipo Erlenmeyer, posteriormente colocado em tubo Falcon de 50 ml e centrifugado a 1000 G por 15 minutos, sendo o sobrenadante recuperado e armazenado em criotubos a -20 ºC até que a dosagem de estrógeno e de colesterol fosse realizada. Para caracterizar o ambiente térmico foi usado o teste do índice de temperatura e umidade (ITU) segundo Hansen (2005), e para caracterizar a adaptação dos animais ao ambiente térmico foi utilizado o coeficiente de tolerância ao calor (CTC) e o coeficiente de adaptabilidade (CA), segundo Martins Jr. (2004). O ITU médio encontrado para o período analisado (março e abril de 2014) foi de 58,33, o que não caracteriza ambiente estressante para os animais. Após análise dos dados bioclimáticos, foram encontrados valores médios de CTC do Grupo I, 95,47 e do Grupo II, 87,14, sendo diferentes entre si (p<0,05), apontando uma tolerância maior do Grupo I quando comparado ao Grupo II. A média de CA encontrada para o Grupo I foi de 3,84 e para o Grupo II de 4,29, valores que diferiram entre si, estatisticamente (p<0,05), mostrando uma maior adaptabilidade do Grupo I em relação ao Grupo II. Os valores médios de perfusão vascular dos folículos pré-ovulatórios foram: Grupo I: H0=32,5%; H6=43,75%; H12=41,85%; H18=33,75%; H24=42,5%; Grupo II: H0=24,85%; H6=41,42%; H12=48,57%; H18=38,57%; H24=47,14%. Não foram encontradas diferenças (p>0,05) entre os grupos quanto ao percentual de perfusão vascular folicular. Os valores médios de colesterol e de estrógeno para os Grupos I e II foram, respectivamente, 51,62mg/ml e 46,14mg/ml e 325.739,64pg/dL e 316.381,05pg/dL. Não observando diferença (p>0,05) entre os grupos. Estes resultados demonstram que ambientes que privam os animais de sombra são passíveis de gerar desconforto térmico, ainda que os índices não apontem ambiente estressante para o animal. No entanto, esse desconforto não foi o suficiente para prejudicar, a esteroidogênese ou percentual de vascularização folicular em 24 horaspor
dc.formatapplication/pdf*
dc.languageporpor
dc.publisherUniversidade Federal Rural do Rio de Janeiropor
dc.rightsAcesso Abertopor
dc.subjectAmbiente térmicopor
dc.subjectUltrassonografia Dopplerpor
dc.subjectReprodução equinapor
dc.subjectThermal environmenteng
dc.subjectDoppler ultrasoundeng
dc.subjectEquine reproductioneng
dc.titleAvaliação da perfusão vascular e da concentração de colesterol e estrógeno nos folículos pré-ovulatórios de éguas Mangalarga Marchador submetidas às condições de desconforto térmicopor
dc.title.alternativeEvaluation of vascular perfusion and cholesterol and estrogen concentrations in Mangalarga Marchador mares pre-ovulatory follicles submitted to conditions of thermal discomforteng
dc.typeDissertaçãopor
dc.description.abstractOtherThe aim of this study was to evaluate the pattern of blood perfusion of dominant follicles undergoing ovulation induction with hCG by ultrasound Collor Doppler, and cholesterol and estrogen concentrations in pre-ovulatory follicles of mares submitted or not to thermal discomfort. Therefore, estrous cycles of 15 mares were randomly distributed between comfort (Group I) and thermal discomfort (Group II) groups and monitored by transrectal ultrasonography periodically until the largest follicle reached greater than or equal to 32mm diameter, at which the mares were given 1000IU of Chorulon® (hCG), and had the preovulatory follicle accompanied by Doppler ultrasound 6-6horas up to 24 hours, at which time the aspirations were taken from the follicular fluid of cholesterol and estrogen dosing. The follicular vascular perfusion was estimated subjective basis, taking into account the percentage of the circumference of the follicular wall with Collor Doppler signals. Aspirated follicular fluid was recovered in Erlenmeyer flasks to subsequently place in a 50ml Falcon tube and centrifuged at 1000G for 15 minutes, and the supernatant recovered and stored in cryovials at -20°C until the estrogen dosage and cholesterol were performed. To characterize the thermal environment was used the test temperature and humidity index (THI) by Hansen (2005), and to characterize the adaptation of animals to the thermal environment was used to heat tolerance coefficient (CTC) and the adaptability coefficient (AC), according to Martin, Jr. (2004). The average THI found for the analyzed period (March and April / 2014) was 58.33, which does not characterize stressful environment for the animals. After bioclimatic analysis found CTC average values of Group I and Group II 95.47, 87.14, these averages were statistically different (p<0.05), indicating a greater tolerance of Group I when compared to Group II. The AC average found for the group I was 3.84 and the Group II 4.29, values that differed statistically (p<0.05), showing greater adaptability in Group I compared to Group II. The average values of vascular perfusion of preovulatory follicles were: Group I: H0=32.5%; H6=43.75%; H12=41.85%; H18=33.75%; H24=42.5%; Group II: H0=24.85%; H6=41.42%; H12=48.57%; H18=38.57%; H24=47.14%. There were no statistically significant differences (p>0.05) between the percentages of follicular vascular perfusion between the groups in the analyzed moments. The mean values of cholesterol and estrogen for Groups I and II were respectively 51.62mg/ml and 46.14mg/ml and 325739.64pg/dL and 316381.05pg/dL. There were no statistically significant differences (p>0.05) between groups. These results demonstrate that environments that deprive the shadow animals are likely to generate thermal discomfort, even if the indices do not point stressful environment for the animal. However, this discomfort is not enough to harm steroidogenesis or percentage follicular vascularization in 24 hourseng
dc.contributor.advisor1Mello, Marco Roberto Bourg de
dc.contributor.advisor1ID19051702892por
dc.contributor.advisor1Latteshttp://lattes.cnpq.br/3560332978218414por
dc.contributor.advisor-co1Jacob, Júlio Cézar Ferraz
dc.contributor.advisor-co1ID33212252634por
dc.contributor.advisor-co1Latteshttp://lattes.cnpq.br/4105470945179000por
dc.contributor.referee1Mello, Marco Roberto Bourg de
dc.contributor.referee2Jacob, Júlio Cezar Ferraz
dc.contributor.referee3Jesus, Vera Lúcia Teixeira de
dc.contributor.referee4Brandão, Felipe Zandonadi
dc.creator.ID03221054122por
dc.creator.Latteshttp://lattes.cnpq.br/2712369508598771por
dc.publisher.countryBrasilpor
dc.publisher.departmentInstituto de Veterináriapor
dc.publisher.initialsUFRRJpor
dc.publisher.programPrograma de Pós-Graduação em Medicina Veterinária (Patologia e Ciências Clínicas)por
dc.relation.referencesACOSTA, T.J.; HAYASHI, K.G.; OHTANI, M.; MIYAMOTO, A. Local changes in blood flow within the preovulatory follicle wall and early corpus luteum in cows. Reproduction, v. 125, p. 759-767, 2003. ACOSTA, T.J. Studies of follicular vascularity associated with follicle selection and ovulation in cattle. Journal of Reproduction and Development, v. 53, p. 39-44, 2007. ACOSTA, T.J.; BEG, M.A.; GINTHER, O.J. Aberrant blood flow area and plasma gonadotropin concentrations during the development of dominant-sized transitional anovulatory follicles in mares. Biology of Reproduction, v. 71, p. 637–642, 2004. AL-KATANANI, Y.M.; PAULA-LOPES, F.F.; HANSEN, P.J. Effect of season and exposure to heat stress on oocyte competence in Holstein cows. Journal of Dairy Science, v. 85, p. 390-396, 2002. AMAKIRI, S.F.; FUNCHO, O.N. Studies of rectal temperature, respiratory rates and heat tolerance in cattle in the humid tropics. Animal Production, v. 28, p. 329-335, 1979. ANDERSON, B. E. Temperatura regulation and environmental physiology. In: Dukes' physiology of domestic animals. 9. ed. Ithaca: Cornell Univ. Press, p. 686-695, 1977. ARGOV, N.; MOALLEM, U.; SKLAN, D. Summer heat stress alters the mRNA expression of selective-uptake and endocytotic receptors in bovine ovarian cells. Theriogenology, v. 64, p. 1475-1489, 2005. BOLLWEIN, H.; MAYER, R.; WEBER; STOLLA, R. Luteal blood flow during the estrous cycle in mares. Theriogenology, v. 65, p. 2043-2051, 2002. BRIDGES, P.J.; BRUSIE, M.A.; FORTUNE, J.E.E. Elevated temperature (heat stress) in vitro reduces androstenedione and estradiol and increases progesterone secretion by follicular cells from bovine dominant follicles. Domestic Animal Endocrinology, v. 29, p. 508-522, 2005. BRUCK, I.; RAUN, K.; SYNNESTVEDT, B.; GREVE, T. Follicle aspiration in the mare using a transvaginal ultrasound guided technique. Equine Veterinary Journal, v. 24, p. 58-59, 1992. CARLUCCIO, A.; PANZANI, S.; TOSIA, U.; FAUSTINI, M.; AMICISA, I. De; VERONESI, M.C. Efficacy of hCG and GnRH for inducing ovulation in the jenny. Theriogenology, v. 68, p. 14–919, 2007. CARNEVALE, E.M.; GINTHER, O.J. Defective oocytes as a cause of subfertility in old mares. Biology of Reproduction, v. 1, p. 209-214, 1995. CARNEVALE, E.M.; SQUIRES, E.L.; MACLELLAN, L.J.; ALVARENGA, M.A.; THOMAS, J.S. Use of oocyte transfer in a commercial breeding program for mares with reproductive abnormalities. Journal of the American Veterinary Medical Association, v. 218, p. 87-91, 2001. 14 CARNEVALE, E.M. Oocyte transfer and gameta intrafallopian transfer in the mare. Animal Reproduction Science, v. 82, p. 617-624, 2004. CARNEVALE, E.M.; COUTINHO DA SILVA, M.A.; PANZANI, D.; STOKES, J.E.; SQUIRES, E.L. Factors affecting the success of oocyte transfer in a clinical program from subfertile mares. Theriogenology, v. 64, p. 519-527, 2005. CARVALHO, C.F.; CHAMMAS, M.C.; CERRI, G.G. Morfologia duplex Doppler dos principais vasos sanguíneos abdominais em pequenos animais. Ciência Rural, v. 38, p. 880-888, 2008. CASTANHEIRA, M. Análise multivariada de características que Influenciam a tolerância ao calor em equinos, ovinos e bovinos. Dissertação. Universidade Federal de Goiás, 2009. CERRI, G.G. Avaliação dúplex do fígado, sistema portal e vasos viscerais. In Doppler. São Paulo: Sarvier, cap.6, p. 120-121, 1998. CERRI, G.G.; ROCHA, D.C. Ultra-sonografia abdominal. São Paulo: Sarvier, 459 p, 1993. DAVID, F.F.A. Fotoperíodo artificial no verão pode evitar anestro estacional na égua? Dissertação (Mestrado). Programa de Pós-Graduação em Ciências Veterinárias. Universidade Federal do Rio Grande do Sul, 2011. EDWARDS, J.L.; HANSEN, P.J. Elevated temperature increases heat shock protein 70 synthesis in bovine two-cell embryos and compromises function of maturing oocytes. Biology of Reproduction, v. 55, p. 340-346, 1996. ENGLAND, G.C.W. Fertility and obstetrics in the horse. 3rd ed. Oxford: Blackwell Science Ltd, Blackwell Publishing, 2005. KERBAN, A.; BOERBOOM, D.; SIROIS, J. Human chorionic gonadotropin induces an inverse regulation of steroidogenic acute regulatory protein messenger ribonucleic acid in theca interna and granulosa cells of equine preovulatory follicles. Endocrinology, v. 140, p. 667–674, 1999. ESMAY, M.L. Principles of animal environment. AVI: Plublishing Co Inc. 2nd ed, p. 358, 1983. FERREIRA, J.C.; IGNÁCIO, F.S.; MEIRA, C. Doppler ultrasonography principles and methods of evaluation of the reproductive tract in mares. Acta Scientiae Veterinariae, v. 39, p. 105-111, 2011. FITZGERALD, B.P.; McMANUS, C.J. Photoperiodic versus metabolic signals as determinants of seasonal anestrus in the mare. Biology of Reproduction, v. 63, p. 335-340, 2000. FUCK, E.J.; MORAES, G.V.; SANTOS, G.T. Fatores nutricionais na reprodução das vacas leiteiras. I. Energia e proteína. Revista Brasileira de Reprodução Animal, v. 24, p. 147-161, 2000. 15 GASTAL, E.L.; GASTAL, M.O.; NOGUEIRA, G.P.; BERGFELT, D.R.; GINTHER, O.J. Temporal interretationships among luteolysis, FSH an LH concentrations an follicle deviation in mares. Theriogenology, v. 53, p. 925-940, 2000. GASTAL, E.L.; GASTAL, M.O.; GINTHER, O.J. Relationships of changes in B-mode echotexture and colour Doppler signal in the wall of the preovulatory follicle to changes in systemic oestradiol concentrations and the effects of human chorionic gonadotrophin in mares. Reproduction Research, v. 131, p. 699-709, 2006. GASTAL, E.L.; GASTAL, M.O.; WILTBANK, M.; GINTHER, O.J. Follicle deviation and intrafollicular and systemic estradiol concentration in mares. Biology of Reproduction, v. 61, p. 31-39, 1999. GINTHER, O.J. Reproductive biology of mare: basic and applied aspects, 2ed, Wisconsin: Equiservices Publishing, p.642, 1992. GINTHER, O.J. Selection of the dominant follicle in cattle and horses. Animal Reproduction Science, v. 60, p. 61-79, 2000. GINTHER, O.J.; GASTAL, E.L.; GASTAL, M.O.; BERGFELT, D.R.; BAERWALD, A.R.; PIERSO, R.A. Comparative study of the dynamics of follicular waves in mares and woman. Biology of Reproduction, v. 71, p. 1195-1201, 2004. GINTHER, O.J.; GASTAL, E., GASTAL, M.; UTT, M.D.; BEG, M. Luteal blood flow and progesterone production in mares. Animal Reproduction Science, v. 99, p. 213-220, 2007. GINTHER, O.J.; BEG, M.A.; GASTAL, E.L.; GASTAL, M.O.; COOPER, D.A. Treatment with human chorionic gonadotropin (hCG) for ovulation induction is associated with an immediate 17-estradiol decrease and a more rapid LH increase in mares. Animal Reproduction Science, v. 114, p. 311–317, 2009. GRUNERT E.; BIRGEL E.H.; VALE G.W. Patologia clínica da reprodução dos animais mamíferos domésticos: ginecologia. São Paulo: Varela, p. 551, 2005. GURGEL, J. R.C., VIANA, C.H.C., PEREZ, E.G.A., NICHI, M. Dinâmica folicular em éguas: aspectos intrafoliculares. Revista Brasileira de Reprodução Animal, v. 32, p. 122-132, 2008. GUZELOGLU, A.; AMBROSE, D.J.; KASSA, T.; DIAZ, T.; THATCHER, J.M.; TATCHER, J.J. Long-term follicular dynamics and biochemical characteristics of dominant follicles in dairy cows subjected to acute heat stress. Animal Reproduction Science, v. 66, p. 15-34, 2001. HAFEZ, E. S. E.; HAFEZ, B. Reprodução animal. 7. ed. São Paulo: Manole, 513 p. 2004. HAHN, G. L. Manegement and housing of farm animals in hot environments. In: YOUSEF, M.K. Stress Physiology in Livestock. Vol. II. Ungulates. Boca Ratem: CRC Press, Inc., p. 151-174, 1985. 16 HANSEN P.J.; DROST M.; RIVERA M.R.; PAULA-LOPES F.F.; AL-KATANANI M.Y.; KRININGER E.C.; CHASE C.C. Adverse impact of heat stress on embryo production: causes and strategies for mitigation. Theriogenology, v. 55, p. 91-103, 2001. HANSEN, J.P. Managing the Heat-Stressed Cow to Improve Reproduction. Proceedings of the 7 th Western Dairy Management Conference. v. 1, p. 9- 11, 2005. HINRICHS, K.; MATTHEWS, G.L.; FREEMAN, D.A.; TORELLO. E.M. Oocyte transfer in mares. Journal of American Veterinary Medical Association, v. 212, p. 982-986, 1998. HINRICHS, K.; RAND, W.M.; PALMER, E. Effect of aspiration of the preovulatory follicle on luteinization, corpus luteum function, and peripheral plasma gonadotropin concentrations in the mare. Biology of Reproduction, v. 44, p. 292-298, 1991. HUNTER, M.G.; ROBINSON, R.S.; MANN, G.E.; WEBB, R. Endocrine and paracrine control of follicular development and ovulation rate in farm species. Animal Reproduction Science, v. 82-83, p. 461-477, 2004. MARTINS JÚNIOR, L.M. Adaptabilidade das raças Boer e Anglonubiana às condições climáticas da região Meio Norte do Brasil. 2004. 44 f.. Dissertação. (Mestrado em Ciência Animal) – Universidade Federal do Piauí, Teresina, PI, 2004. MATSUZUKA, T.; OZAWA, M.; HIRABAYASHI, M.; USHITANI, A.; KANAI, Y. Developmental competence and glutathione content of maternally heat stressed mouse oocytes and zygotes. Animal Science Journal, v. 75, p. 117-24, 2004. MATTIOLI, M.; BARBONI, B.; TURRIANI, M.; GALEATI, G.; ZANNONI, A.; CASTELLANI, G.; BERARDINELLI, P.; SCAPOLO, P.A. Follicle activation involves vascular endothelial growth factor production and increased blood vessel extension. Biology of Reproduction, v. 65, p. 1014-1019, 2001. McCUE, P.M.; MAGEE, C.; GEE, E.K. Comparison of Compounded Deslorelin and hCG for Induction of Ovulation in Mares. Journal of Equine Veterinary Science, v. 27, p. 58-61, 2007. McKINNON, A.O.; PERRIAM, W.J.; LESCUN, T.B.; WALKER, J., VASEY, J.R. Effect of a GnRH analogue (Ovuplant), hCG and dexamethasone on time to ovulation in cycling mares. World Equine Veterinary, v. 2, p. 16-18, 1997. McKINNON, A.O. Hormonal Control of Equine Reproduction. Proceedings of the Annual Convention of the AAEP Annual Resort Symposium, p. 139-186, 2009. MIYAMOTO, A; SHIRASUNA, K; HAYASHI, K.G.; KAMADA, D.; AWASHIMA, C.; KANEKO, E.; ACOSTA, T.J.; MATSUI, M. A potential use of color ultrasound as a tool for reproductive management: new observations using color ultrasound scanning that were not possible with imaging only in black and white. Journal of Reproduction and Development, v. 52, p. 153-160, 2006. MOREL, M.D. Endocrine Control of Reproduction in the Mare, Equine Reproductive Physiology, Breeding and Stud Management III, 2nd Ed, Cabi Publishing, p. 28-39, 2003. 17 MOREL, C.G.D; NEWCOMBE, J.R. The efficacy of different hCG dose rates and the effect of hCG treatment on ovarian activity: Ovulation, multiple ovulation, pregnancy, multiple pregnancy, synchrony of multiple ovulation; in the mare. Animal Reproduction Science, v. 109, p. 189-199, 2008. MÜLLER, P.B. Bioclimatologia aplicada aos animais domésticos. 3ª ed. Sulina, p. 262, 1982. OLIVEIRA, A.L.; CAMPEL, J.E.G.; AZEVEDO, D.M.M.R.; COSTA, A.P.R.; TURCO, S.H.N.; MOURA, J.W.S. Estudo de respostas fisiológicas de equinos sem raça definida e da raça Quarto de Milha às condições climáticas de Teresina, Piauí. Ciência Animal Brasileira, v. 9, p. 827-838, 2008. OLIVEIRA, J.P.; JACOB, J.C.F.; JESUS, V.L.T.; SILVA, P.C.A. Influência da temperatura e umidade ambiente em um programa de transferência de embriões equinos, na Baixada Fluminense, Rio de Janeiro. Revista Brasileira de Medicina Veterinária. v. 37:2, p. 158-162, 2015. OZAWA M.; HIRABAYASHI M.; KANAI Y. Developmental competence and oxidative state of murine zygotes heat stressed maternally or in vitro. Reproduction, v. 124, p. 683-689, 2002. OZAWA, M.; TABAYASHI, D.; LATIEF, L.A.; SHIMIZU, T.; OSHIMA, I.; KANAI, Y. Alterations in follicular dynamics and steroidogenic abilities induced by heat stress during follicular recruitment in goats. Reproduction, v. 129, p. 621- 630, 2005. PALMER, E.; JOUSSET, B. Urinary oestrogen and plasma progesterone levels in non-pregnant mares. Journal of Reproduction and Fertility, v. 23, p. 213-221, 1975. PALUDO, G.R.; MCMANUS, C.; MELO, R.Q.; CARDOSO, A.G.; MELLO, F.P.S.; MOREIRA, M.; FUCK, B.H. Efeito do estresse térmico e do exercício sobre parâmetros fisiológicos de cavalos do Exército Brasileiro. Revista Brasileira de Zootecnia, v. 31, p. 1130-1142, 2002. PEREIRA, C. C. J. Fundamentos de Bioclimatologia Aplicados à Produção Animal. FEPMVZ, p. 195, 2005. RAMMERSTORFER, C.; POTTER, G.D.; BRUMBAUGH, G.W.; GIBBS, P.G.; VARNER, D.D.; RAMMERSTORFER, E.H. Physiologic responses of acclimatized or non-acclimatized mature reining horses to heat stress. Journal of Equine Veterinary Science, v. 21, p. 431-438, 2001. RENSIS, F. D.; SCARAMUZZI, J. R. Heat Stress and seasonal effects on reproduction in the dairy cow: a review. Theriogenology, v. 6, p. 1139-1151, 2003. RODRIGUES, P.G.; RAYMUNDO, C.M.; SOUZA, J.C.; MIRANDA, M.C.M.G.; REZENDE, A.S.C. Gordura corporal e eficiência reprodutiva em éguas doadoras de embrião Mangalarga Marchador. Ciência e Agrotecnologia, v. 5, p. 1002-1008, 2011. 18 ROMANO, M. A. Biologia reprodutiva de éguas: estudo do ciclo estral e momento da ovulação. Brazilian Journal of Veterinary Research and Animal Science, v. 35, p. 25-28, 1998. ROMANO, R. M. Influência da gonadotrofina coriônica humana sobre a hemodinâmica de folículos pré-ovulatórios e desenvolvimento luteal em éguas. 102f. Dissertação (Mestrado em Reprodução Animal) – Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista, Botucatu, 2013. ROTH, Z.; MEIDAN, R.; BRAW-TAL, R.; SHAHAM-ALBALANCY, A.; WOLFENSON, D. Delayed effect of heat stress on steroidogenesis in bovine medium-size and preovulatory follicles. Reproduction, v. 121, p. 745-751, 2001. SAMPER, J.C. Induction of estrus and ovulation: Why some mares respond and others do not? Theriogenology, v. 70, p. 445-447, 2008. SARTORI R.; SARTORI-BERGFELT R.; MERTENS S.A.; GUENTHER J.N.; PARRISH J.J.; WILBANK M.C. Fertilization and early embryonic development in heifers and lactating cows in summer and lactating and dry cows in winter. Journal of Dairy Science, v. 85, p. 2803-2812, 2002. SERRES, C.; GÓMEZ-CUÉTARA, C.; GUTIÉRRER-CEPEDA, L.; REDONDO, M. Effect of hCG administration at different times of the day on the interval to ovulation in mares. Animal Reproduction Science, v. 121, p. 74-75, 2010. SHARP, D.C. Environmental influences on reproduction in horses. Veterinary Clinics of North America, v. 2, p. 207-233, 1980. SHEHAB-EL-DEEN M.; FADEL M.S.; SOOM A.V.; SALEH S.Y.; MÃES D.; LEROY J.L.M.R. Circadian rhythm of metabolic changes associated with summer heat stress in high-producing dairy cattle. Tropical Animal Health and Production, v. 42, p. 1119-1125, 2010. SPEROFF, L.; GLASS, R.H.; KASE, N.G. Endocrinologia ginecológica, Clínica e Infertilidade. 5° edição, p. 1068, 1995. SQUIRES, E.L.; COOK, N.L. Transvaginal aspiration. Veterinary Clinics of North America: Equine Practice, v. 12, p. 13-29, 1996. SUTTON-MCDOWALL, M.E.; GILCHRIST, R.B.; THOMPSON, J.G. Effects of in-vivo and in-vitro environments on the metabolism of the cumulus-oocyte complex and its influence on oocyte developmental capacity. Human Reproduction Update, v. 9, p. 35-48, 2003. SZATMÁRI, V.; SÓTONYI, P.; VÖRÖS, K. Normal duplex Doppler waveforms of major abdominal blood vessels in dogs: a review. Veterinary Radiology and Ultrasound, v. 42, p. 93-107, 2001. VOGELSANG, M.M.; KREIDER, J.L.; BOWEN, M.J..; POTTER, G.D.; FORREST, D.W.; KRAEMER, D.C. Methods for collecting follicular oocytes from mares. Theriogenology, v. 29, p. 1007-1018, 1988. 19 WILSON, C.G.; DOWNIE, C.R.; HUGHES, J.P.; ROSER, J.F. Effects of repeated hCG injections on reproductive efficiency in mares. Journal of Equine Veterinary Science, v. 10, p. 301-308, 1990. ZACHUT, M.; ARIELI, A.; LEHRER, H.; ARGOV, N.; MOALLEN, U. Dietary unsatured fatty acids influence preovulatory follicle characteristics in dairy cows. Reproduction, v. 135, p. 683-692, 2008.por
dc.subject.cnpqMedicina Veterináriapor
dc.thumbnail.urlhttps://tede.ufrrj.br/retrieve/63986/2015%20-%20Daniela%20de%20Mello.pdf.jpg*
dc.originais.urihttps://tede.ufrrj.br/jspui/handle/jspui/4383
dc.originais.provenanceSubmitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2021-02-10T15:16:50Z No. of bitstreams: 1 2015 - Daniela de Mello.pdf: 606265 bytes, checksum: 6517769919ea321a38b9fce7d8486a94 (MD5)eng
dc.originais.provenanceMade available in DSpace on 2021-02-10T15:16:50Z (GMT). No. of bitstreams: 1 2015 - Daniela de Mello.pdf: 606265 bytes, checksum: 6517769919ea321a38b9fce7d8486a94 (MD5) Previous issue date: 2015-06-29eng
Appears in Collections:Mestrado em Medicina Veterinária (Patologia e Ciências Clínicas)

Se for cadastrado no RIMA, poderá receber informações por email.
Se ainda não tem uma conta, cadastre-se aqui!

Files in This Item:
File Description SizeFormat 
2015 - Daniela de Mello.pdfDaniela de Mello592.06 kBAdobe PDFThumbnail
View/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.