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Item ESTUDO DE MORFOLOGIA MACROSCÓPICA, MICROSCÓPICA TESTICULAR E EPIDIDIMÁRIA EM EMAS (Rhea americana, Linnaeus 1758)(RHEIDAE)(Universidade Federal de Goiás, 2010-12-15) CARVALHO, Saulo Fernandes Mano de; SABÓIA-MORAIS, Simone Maria Teixeira de; http://lattes.cnpq.br/6723881044959716; FRENEAU, Gustavo Eduardo; http://lattes.cnpq.br/9867769335357011The purpose of this research was studied the macroscopic morphology of rhea s testis and epididymis. Were studied testis from 54 rheas, breed in captivity. In commercial slaughter, were collected testis to analyzed macroscopic measurements of testis and epididymis, consisting in length, width, thickness, circumference, volume, parenchyma and testicular capsule weight, also shape, size and blood supply. Of these parameters were calculated media and standard deviation. The testes looks like a cylinder, the testicular capsule is thin, dense and transparent, a short testicular artery arises from the A. cranialis renalis. The organs were influenced of season with reproductive and non reproductive times. In December/2006 and May/2007 the morphmetric media (x) measurements in right testes was: volume 58.70 and 14.7 mL , length 9.87 and 3.5 cm, width 2.44 and 0.6 cm, thickness 2.49 and 0.5 cm, circumference 8.02 and 2.3 cm, parenchyma weight 27.66 and 6.1 g and testicular capsule weight 1.04 and 0.3 g, respectively. In right epididymis was: volume 7.7 and 3.0 mL, length 5.8 and 1.3 cm, width 0.7 and 0.3 cm, thickness 0.6 and 0.3 cm, circumference 2.5 and 1.2 cm, parenchyma weight 6.4 and 2.8 g and capsule weight 0.4 and 0.1 g, respectively. A few of measurements, in testes and epididymis were bigger in right side than in left side (p<0.05) showing asymmetry. The medias of November/2005 were in intermediate position (p<0.05), but near the December/2006 data, probably it could be a transition phase between the rest and sexual activity (breeding season). The observations confirms sexual activity season in this specie, by spring summer. Morphologically the Rhea`s testicles and epididymis hava many points in common with other birds, but differences were observed, and has influence of seasons. The testicle and epididymis biometric characteristics were bigger in the breeding seasons. Key words: Aves, Epididymis, Morphology, Ratites, Reproduction, Seasonality, TestesItem Lesões de isquemia arteriovenosa e reperfusão em jejuno de equinos: imunoistoquímica de proteínas de junção e histopatologia(Universidade Federal de Goiás, 2007-12-31) NASCIMENTO, Aline Machado Rapello do; ARAÚJO, Eugênio Gonçalves de; http://lattes.cnpq.br/3919777570059928; BRITO, Luiz Augusto Batista; http://lattes.cnpq.br/3212353728321020To evaluate whether complete arteriovenous ischemia followed by reperfusion of mesenteric blood flow aggravates lesions involving small intestine of horses, β--catenin and occludin expressions were measured in jejune epithelia of seven equines, without definite breed. The animals had been submitted to aseptic ventral midline celiotomy and five jejune segments collected corresponding to a baseline segment, a five minutes segment subjected to ischemia, and three segments collected after being subjected to five, sixty and one hundred and twenty minutes of tecidual reperfusion, respectively. Experimentally induced lesions created by total arteriovenous occlusion followed by reperfusion were similar to naturally acquired lesions, as much in the period of ischemia as in the aggravation of the injuries observed during reperfusion. Changes that occur when ischemic intestine is reperfused are progressive, and include mucosal, submucosal, and serosal edema; polymorphonuclear and mononuclear cell infiltrates; and alterations in vascular patterns. Imunohistochemistry analyses have shown strong staining baseline segments for β-catenin in all animals and its progressive lack of staining during ischemia and reperfusion treatments. That indicates progressive lack of intercellular adherence. Similar results of specific decreases of total expression of Occludin, a tight junction protein, were observed. This protein is involved in regulating the movement of solutes in the paracellular pathway and also plays an important role in the maintenance of cell polarity. The reduction of expressions of both intercellular proteins measured directly demonstrates β-catenin injury due to progression of edema during ischemia and its aggravation during reperfusion and also shows an increase of the permeability of paracelular pathways and its related consequences to degradation of Ocludina.Item Desvio traumático de pênis em bovinos: aspectos epidemiológicos, morfofuncionais e tratamento cirúrgico empregando biomateriais(Universidade Federal de Goiás, 2009-04-30) RABELO, Rogério Elias; SILVA, Luiz Antônio Franco da; http://lattes.cnpq.br/0446055905975647; FIORAVANTI, Maria Clorinda Soares; http://lattes.cnpq.br/8772502020076257; BRITO, Luiz Augusto Batista; http://lattes.cnpq.br/3212353728321020