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Aspectos biométricos do desenvolvimento testicular e corporal em cutias (Dasyprocta aguti) criadas em cativeiros
Assis-Neto, Ant?nio Chaves de;Carvalho, Maria Acelina Martins de;Melo, Maria Isabel Vaz de;Miglino, Maria Angélica;Oliveira, Moacir Franco de;Almeida, M?nica Marcos de;Papa, Paula de Carvalho;Kfoury Júnior, José Roberto;
Brazilian Journal of Veterinary Research and Animal Science , 2003, DOI: 10.1590/S1413-95962003000800010
Abstract: biometric data of the testicular and corporal weight development of 31 agoutis (dasyprocta aguti), from the birth up to 14 months of age, were analyzed. the correlations between corporal weight, age and testicular parameters were highly significant. testicular weight, testicular volume, as well other testicular biometric parameters (length, diameter and perimeter), evolved slow and gradually until eight months of age. beginning on 9 months of age, the growth was faster, and in this period. the seminiferous epithelium was already formed. biometric development of the testes can be shared in two phases: 0 - 8 months and 9 - 14 months of age, however the 9 months age are the maximum point of the testicular development in agoutis (dasyprocta aguti) rised in captivity.
Análise qualitativa do estabelecimento da espermatogênese em cutias (Dasyprocta aguti) criadas em cativeiros
Assis-Neto, Ant?nio Chaves de;Melo, Maria Isabel Vaz de;Carvalho, Maria Acelina Martins de;Miglino, Maria Angélica;Oliveira, Moacir Franco de;Menezes, Danilo José Ayres de;Papa, Paula de Carvalho;Kfoury Júnior, José Roberto;
Brazilian Journal of Veterinary Research and Animal Science , 2003, DOI: 10.1590/S1413-95962003000900004
Abstract: the determination of the puberty beginning is widely studied in domestic animals and rodents. however, there are scarce researches with the purpose to establish parameters for the reproductive biology in agoutis. thirty-one male agoutis, dasyprocta agouti species had been used, originated from the universidade federal do piauí - pi, and from the mossoró superior scholl of agriculture - rn. immediately after the orchiectomy, histological sections were made, the tissues were stained with hematoxylin-eosine and analyzed for the following parameters: aspects of the seminiferous tubule lumen; presence of primary spermatocytes; presence of spermatid cells and formation of the first stages of the seminiferous epithelium cycle (sec), in accordance with the tubular morphology method. the period from the birth up to five months of age corresponded to the impuberal phase; from six to eight months, to the transition from the prepuberal phase to puberty; from nine to ten months, to the puberty; and, from twelve to fourteen months of age to the after-puberty phase. the puberty of the agouti (dasyprocta aguti), occurred since seven months of age, being the establishment puberty beginning evidenced at nine months of age.
Análise histométrica do desenvolvimento testicular de cutias (Dasyprocta aguti) criadas em cativeiros
Assis-Neto, Ant?nio Chaves de;Melo, Maria Isabel Vaz de;Carvalho, Maria Acelina Martins de;Miglino, Maria Angélica;Oliveira, Moacir Franco de;
Brazilian Journal of Veterinary Research and Animal Science , 2003, DOI: 10.1590/S1413-95962003000300007
Abstract: the testicular development in 31 agoutis, of the dasyprocta aguti species, from the birth up to 14 months of age was studied through the histometric analysis. mid diameter and the mean area, in each testicle, were obtained through 30 crosscuts of the funiculus and/or the seminiferous tubule, by means of a computerized system for image analysis and a zeiss cpl 10x ocular micrometric device, coupled to an objective lens of 40x. testicles volume proportions were obtained through the stereometric method, according to elias, henning and schwartz1. tubule medium diameter presented a slow growth from the birth to the eight months of age, for both used methodologies. when the ocular micrometric device was used it was observed that, beginning in the ninth month, the tubule diameter had an accelerated growth getting to duplicate its value if compared with the preceded age group. the volume proportion of the testicle cord and the seminiferous tubule grew gradually, reaching its maximum value (86,50%) on the ninth month. the leydig cells presented a decreasing volume proportion, and their largest values were expressive from the birth up to four months of age (7,00 ± 1,77% to 9,55 ± 0,64%) and a minimum value, starting from nine months, still tending to stabilize. the stroma decreased with the development of age and fall abruptly when the puberty starts. it is concluded that the diameter of the testicles cords and seminiferous tubule presented a larger growth coinciding with the start of puberty and the volume proportion of the leydig cells was lower in the same period.
Quantifica??o de células dos túbulos seminíferos e rendimento da espermatogênese em cutias (Dasyprocta aguti) criadas em cativeiros
Assis-Neto, Antonio Chaves de;Melo, Maria Isabel Vaz de;Carvalho, Maria Acelina Martins de;Miglino, Maria Angélica;Oliveira, Moacir Franco de;Ambrósio, Carlos Eduardo;Silva, Silvana Maria Medeiros de Sousa;Blasquez, Francisco Xavier Hernandez;Papa, Paula de Carvalho;Kfoury Júnior, José Roberto;
Brazilian Journal of Veterinary Research and Animal Science , 2003, DOI: 10.1590/S1413-95962003000900003
Abstract: this study has as objective to evaluate the spermatogenesis yield of agoutis rised in captivity, through the rates found between cellular types of the seminiferous epithelium. the results showed that the spermatogenesis yield of the agoutis since 9 to 14 months of age did not reach the stabilization point. the coefficient of efficiency of the spermatogonium mitoses, did not increase with the age. the meiotic yield, usual spermatogenesis yield and the sertoli cells index didn't showed numeric variation at function of the age, however, it was not detected by statistic data.
Enfermidades de cutias (Dasyprocta aguti) criadas em cativeiro diagnosticadas pelo exame anatomopatológico
Batista, Jael S.;Olinda, Roberio G.;Silva, Taciana M. F.;Rodrigues, Carla M. F.;Oliveira, Andréia F.;Queiroz, Sílvia A. C.;Morais, Sérgio R. L.;Oliveira, Moacir F.;
Pesquisa Veterinária Brasileira , 2010, DOI: 10.1590/S0100-736X2010000600005
Abstract: necroscopic examination is remarkably useful to diagnose wild animal's diseases. in several occasions the clinical signs are not charactheristic as in domestic animals and the occurrence of death in asymptomatic animals is frequent. thus, the present work aimed to accomplish a retrospective study on agouti diseases diagnosed by pathological examination in the laboratory of veterinary pathology, federal rural university of the semi-arid, through january 2006 to december 2006. in 32 agoutis submitted to the necropsy, the percentage of diagnosed diseases was: perinatal death due hypothermia/ inanition complex (21.6%), obstructive urolithiasis (6.24%), dystocia (6.24%), cecum sablosis (6.24%), intussusceptions (3.20%), fecaloma (3.20%) and esophagus obstruction (3.20%). a total of 16 (50.08%) animals remained undiagnosed in which nine (28.48%) showed advanced autolysis and seven (21.60%) agouti had none macroscopic or microscopic lesions compatible with any disease. the present article presents reports of some diseases not yet diagnosed in agoutis and these results may produce literature review about the pathologic aspects of these diseases in this species.
ANáLISE COPROPARASITOLóGICA DE CUTIAS (Dasyprocta SP.) CRIADAS EM CATIVEIRO  [cached]
Ivete Lopes de Mendon?a,M?nica Marcos de Almeida,Airton Mendes Conde Júnior,Rildênio Renato Cavalcante
Ciência Animal Brasileira , 2006,
Abstract: A cria o de animais silvestres em cativeiro desponta como forma indireta e importante para se preservar espécies amea adas de extin o. Além disso, cresce o interesse da sociedade em estudar estas espécies, pela possibilidade de aproveitá-las como fonte de proteína e gerar renda através da comercializa o de produtos que apresentam grande potencial de mercado. O objetivo desta pesquisa foi realizar um levantamento coproparasitológico de cutias. Colheram-se 117 amostras de fezes, que foram processadas pelos métodos de Willis-Mollay, Hoffmann e Sheather (HOFFMANN, 1987). Alojaram-se os animais em baias coletivas com a densidade de dez animais para 30 m2. Das 117 amostras analisadas de um plantel de 44 animais, 64 (54,7%) foram negativas e 53 (45,3%) positivas. Entre as positivas, verificaram-se oocistos de protozoários – 24(45,3%); ovos de Trichuris sp. – 7 (13,2%); ovos de Strongiloides s.p – 10 (18,8%); e ovos de Trichuris sp. e de Strongiloides sp com infec o mista – 12 (22,6%). Conclui-se que as cutias do gênero Dasyprocta sp. apresentaram-se parasitadas por helmintos gastrintestinais e protozoários,sendo estes últimos de maior prevalência, e que as técnicas empregadas mostraram-se eficazes para identifica o dos ovos de helmintos e oocistos de protozoários de cutias. PALAVRAS-CHAVE: Cutia, helmintos gastrintestinais, protozoários.
Placenta??o em cutias (Dasyprocta aguti, CARLETON, M.D.): aspectos morfológicos
Rodrigues, Rosangela Felipe;Miglino, Maria Angelica;Ferraz, Rosa Helena dos Santos;Morais-Pinto, Luciano de;
Brazilian Journal of Veterinary Research and Animal Science , 2003, DOI: 10.1590/S1413-95962003000200007
Abstract: the agouti is a wild rodent found in the south of central america and in tropical regions of south america, especially in the northern, northeastern and southeastern regions of brazil. these animals represent an important socio-economic factor in the north and northeastern regions of brazil since they provide animal protein. for this paper 07 agouti (dasyprocta aguti) placentas were used, in differents stages of gestation. the placenta presents a spherical shape and lobular structure connecting to the uterus by means of a mesoplacenta. fetal blood flows from the interlobium to the center of the lobe, that is, centripetally, while maternal blood flows centrifugally.
Hemograma e proteinograma de cutias (Dasyprocta sp.) hígidas, criadas em cativeiro: influência do sexo e da idade
Ribeiro, E.E.A.;Batista, M.C.S.;Carvalho, M.A.M.;Silva, J.A.L.;
Arquivo Brasileiro de Medicina Veterinária e Zootecnia , 2008, DOI: 10.1590/S0102-09352008000500013
Abstract: the profiles of hemogram and proteinogram of healthy agouti (dasyprocta sp.) grown in captivity, in piauí state, brazil, were determined, as well as the influence of gender and age factors and the relationship between sex-age them. a completely randomized design was used in a factorial arrange 2x4, two genders and four ages, totaling 24 animals. the mean values of the hemogram were: erythrocytes = 6.51±0.83 (x106); hematocrit = 43.58±3,41%; hemoglobin = 12.71±1,04g/dl; mean corpuscular volume = 64.61±7.52μl; mean corpuscular hemoglobin concentration = 29.19±1,61%; platelets= 150.08±63.39 (x103/μl); white blood cells = 7.24±2.52 (x103/μl); basophils = 0.11±0,2 (x103/μl); eosinophils = 0,32±0,2 (x103/μl); neutrophils = 2.5±1,22 (x103/μl); lymphocytes = 3.58±1.52 (x103/μl); and monocytes = 0.76±0.47 (x103/μl). the mean values of the proteinogram were: total serum proteins = 6.04±1.77g/dl; albumin = 2.07±0.79g/dl and globulin = 3.97±1.54g/dl. neither gender nor age influenced the results of the studied parameters. association between gender and age was not verified. the values of lymphocytes were lower in older animals.
A veia ázigos direita na cutia (Dasyprocta aguti, rodentia)
OLIVEIRA, Paola Franssinetti Nunes Machado;CARVALHO, Maria Acelina Martins;SOUZA, Wilson Machado;MIGLINO, Maria Angélica;
Brazilian Journal of Veterinary Research and Animal Science , 1999, DOI: 10.1590/S1413-95961999000400002
Abstract: the behaviour of the azygos vein, its formation and topography were studied in 10 cutias (dasyprocta aguti, rodentia) adults (6 males and 4 females) captured in the state of piauí, brazil. this research intends to be a base for other investigations, particularly those with reference to zootechnical exploration of this species. the azygos venous system was injected with latex (neoprene 671), then the animals were put in watery solution of formol 10%, and dissected. in all specimens it was observed that the azygos vein always arrives in the cranial vena cava on a level with fourth intercostal space. the azygos vein receives more frequently (50%), the intercostal veins on the right side and 5 (50%) on the left one. the tributaries of the azygos vein are the phrenic veins (l00%), and the broncoesophagea vein (30%). the hemiazygos vein is in all cases on the left side and in 60% of the cases on the right side. the azygos vein communicates with the left hemiazygos vein (90%), with the right one (100%), and with the vena cava caudal and intervertebral veins, with equal frequency (30%).
PESO PóS-PARTO, FREQüêNCIA E PREVALêNCIA DO TIPO DE PARTO DE CUTIAS (Dasyprocta sp) CRIADAS EM CATIVEIRO  [cached]
Rildênio Renato Cavalcante,M?nica Marcos de Almeida,Sandovaldo Gon?alves de Moura,Luís Madeira Martins Júnior
Ciência Animal Brasileira , 2006,
Abstract: A pesquisa objetivou avaliar parametros de desenvolvimento de cutias, buscando fornecer dados para contribuir com a sele o, o melhoramento genético e formas adequadas de manejo para estes animais. Foram observados o peso pós-parto, freqüência e a prevalência do tipo de parto em fun o da época do ano em 33 fêmeas. Constatou-se que n o houve intera o entre época do ano e tipo de parto (P>0,05). O peso médio pós-parto foi de 2,24 Kg e 2,39 Kg, para o período de janeiro a dezembro, respectivamente, n o apresentando diferen a significativa para esta variável (P>0,05). Com rela o ao tipo de parto, as cutias com parto simples apresentaram peso médio de 2,32 Kg e as com parto duplo 2,38 Kg, n o sendo estes valores significativamente diferentes entre si (P>0,05). Concluiu-se que o peso da cutia fêmea pós-parto, a freqüência e o tipo de parto (simples e duplos) n o sofrem influência da época do ano e que a cutia em cativeiro se comporta como poliéstrica contínua. PALAVRAS-CHAVE: Cutia, peso pós-parto, prevalência, tipo de parto.
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