Collection and evaluation of epididymal sperm in captive agoutis (Dasyprocta aguti)

Ferraz, Maíra Soares; Menezes, Danilo José Ayres de; Pessoa, G.T.; Cabral, Richard Haltí; Illera, M.; Silva, Alexandre Rodrigues; Carvalho, Maria Acelina Martins de

doi:10.1016/j.theriogenology.2010.09.013

Cited by 20 publications

(24 citation statements)

References 23 publications

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“…Pinheiro et al 1989. The establishment of conservation units and commercial breeding farms has stimulated studies to acquire biological data of the species, especially the characteristics of reproductive, health and good management, to ensure its survival in captivity (Berllago & Cerqueira 1994, Redford 1997, Ferraz et al 2010.…”

Section: Introductionmentioning

confidence: 99%

Thoracic and heart biometrics of non-anesthetized agouti (Dasyprocta primnolopha Wagler, 1831) measured on radiographic images

et al. 2013

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The agouti is a species intensively hunted throughout the Amazon and the semi-arid regions of northeastern Brazil. Considering the current trend in conservation management of wild species, the aim of this study was to determine the morphometric reference to the heart of agouti raised in captivity, based on thoracic and cardiac measurements in these animals. Thirty adult agoutis, 1 to 3 years of age, without clinical signs of cardiac disease were selected. The animals were physically restrained and radiographies in laterolateral (LL) and ventrodorsal (VD) recumbence were produced. The following measures were taken: the apicobasilar length of the heart (at the most cranial height of the Carina region to the heart apex) (AB), maximum width of the heart perpendicular to AB (CD), heart inclination angle (AIC), trachea inclination angle (AIT), distance from the right heart wall (DPTd), distance from the left heart wall (DPTe) and vertical depth of the thorax, and the ventral face of the vertebral column to the dorsal border of the sternum at the level of the trachea bifurcation (H). The ratios between AB/CD, AB/H and CD/H were also analyzed. To calculate the vertebral heart scale (VHS), the AB and CD measurements were laid over the thoracic vertebra starting at T4. Radiographic evaluation showed values consistent with those reported in small animals and some wild and exotic species. The main biometric values in the chest cavity and heart of agouti are arranged as follows: (1) The ratios between AB/H ratio and CD/H were not sensitive for identifying heart increases (p>0.05), while the ratio AB/CD was more sensitive in this identification (p<0.05); (2) AIC: 21.2±6.4 o (mean between male and famale); (3) AIT for males and females: 9.93±3.23° and 8.4±3.94°; (4) DPTd and DPTe for males: 0.97±0.40cm and 0.7±0.30cm; (5) DPTd and DPTe for females: 1.12±0.42cm and 01.02±0.43cm; (6) VHS for males and females: 7.75±0.48v e 7.61±0.34v; (7) The caudal vena cava (CVC) was visualized dorsal-cranially and located right of the midline. The data obtained allowed the acquisition of the first reference values for biometry of the heart of agoutis, contributing to better understanding of cardiac morphology and identification of cardiomyopathy in these animals. Os principais valores biométricos mensurados na cavidade torácica e cardíaca da cutia, estão dispostas da seguinte forma: (1) As relações entre AB/H e CD/H não foram sensíveis para identificar aumento do coração (p> 0,05), enquanto a proporção AB/CD foi mais sensível nesta identificação (p <0,05); (2) AIC: 21,2 ± 6.4 o (média entre machos e fêmeas); (3) AIT para machos e fêmeas: 9.93 ± 3.23° and 8.4±3.94°; (4) DPTd e DPTe para os machos: 0,97 ± 0,40 cm e 0,7 ± 0,30, (5) DPTd e DPTe para as fêmeas: 1,12 ± 0,42 e 01,02 ± 0,43; (6) VHS para machos e fêmeas: 7.75±0.48v e 7.61±0.34v; (7) A veia cava caudal (CVC) foi visualizada dorso-cranialmente e localizada à direita da linha média.Os dados obtidos permitiram a obtenção dos primeiros valores de referência para a biometria do coração de ...

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Section: Introductionmentioning

confidence: 99%

Thoracic and heart biometrics of non-anesthetized agouti (Dasyprocta primnolopha Wagler, 1831) measured on radiographic images

et al. 2013

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“…The establishment of conservation units and commercial rearing farms has stimulated studies regarding the acquisition of biological data of the species, especially the reproductive, health and food management characteristics, to ensure their survival in captivity (Berllago & Cerqueira 1994, Redford 1997, Ferraz et al 2010.…”

Section: Introductionmentioning

confidence: 99%

Electrocardiogram assessment in non-anaesthetized clinically healthy agouti (Dasyprocta primnolopha, Wagler 1831)

et al. 2013

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Pesq. Vet. Bras. 33(Supl.1):8-14, dezembro 2013 8 RESUMO.-[Avaliação do eletrocardiograma em cutias (Dasyprocta primnolopha, Wagler 1831) não-anestesiadas clinicamente saudáveis.] A cutia é uma das espé-cies mais intensamente caçados em toda a Amazônia e as regiões semi-áridas do nordeste do Brasil. Considerando--se a tendência atual no manejo de animais silvestres em cativeiro, o objetivo deste estudo foi determinar os valores de referência para o coração cutia criadas em cativeiro, com base em avaliações do eletrocardiograma (ECG). Foram selecionadas cutias adultas e sem sinais clínicos de doença cardíaca (n=30). Os animais foram contidos fisicamente e, em seguida, o ECG foi realizado. Medições padronizadas foram tomadas para estabelecer a análise estatística dos dados. Análise do complexo QRS apresentou valores compatíveis com os relatórios pregressos em animais animais de companhia, assim como para os poucos dados disponí-veis para outras espécies selvagens e exóticas, com exceção da onda T, que mostrou amplitude semelhante à onda R em The agouti is one of the most intensely hunted species throughout the Amazon and the semiarid regions of north-eastern Brazil. Considering the current tendency of wild animal management in captivity, the objective of this study was to determine heart reference values for agouti raised in captivity, based on electrocardiographic assessments (ECG). Adult agouti were selected without clinical signs of heart disease (n=30). The animals were restrained physically and then the ECG was performed. Standardized measurements were taken to establish the statistical analysis of the data. Analysis of the QRS complex showed values compatible with previous reports in peer animals and the limited data available for other wild and exotic species, except for the T wave that showed similar amplitude to the R wave in all the animals studied. The data obtained provided the first reference values for ECG tracings in agouti, contributing to a better understanding of heart electrophysiology in identifying myocardial pathology in these animals. Electrocardiogram assessment in non-anaesthetized clinically healthy agouti (Dasyprocta primnolopha, Wagler 1831) todos os animais estudados. Os dados obtidos permitiram a aquisição dos primeiros valores de referência para os traçados de ECG em cutias, contribuindo para uma melhor compreensão eletrofisiologia cardíaca, na identificação de miocardiopatia nesses animais.

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“…Las medidas de la longitud y ancho de la cabeza de los espermatozoides del capibara (L:5.41±0.7; A:3.77±0.5) fueron similares a los obtenidos en Dasyprocta agutí (L: 4.89±0.4; A: 3.13±0.35) (24). En este estudio fue evidente a la vez, una alta variabilidad en el tamaño de los espermatozoides lo que coincide con estudios en otras especies animales en las cuales dicho hallazgo se ha asociado con la presencia de diferentes subpoblaciones de espermatozoides (27), aunque esto todavía no ha sido reportado en el capibara.…”

Section: Discussionunclassified

“…La longitud de la cola de los espermatozoides (27.9±1.1 µm) fue menor al reportado en un estudio que incluyó 445 especies de mamíferos incluido el capibara (29). Sin embargo, es similar a la longitud reportada en agutí (Dasyprocta agutí) (29.91 ± 2.29 µm) (24).…”

Section: Discussionunclassified

Obtención y evaluación del semen de capibara Hydrochoerus hydrochaeris

et al. 2012

Rev MVZ Córdoba

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RESUMENObjetivo. Determinar las características del semen y la morfometría de los espermatozoides del Capibara (Hydrochoerus hydrochaeris). Materiales y métodos. Se utilizaron 10 machos con peso entre 21-45 kg, los cuales fueron restringidos y anestesiados. El semen se obtuvo mediante electroeyaculación y se determinó el color, volumen, pH, motilidad en masa, motilidad individual, viabilidad, concentración y morfología. Se realizaron además mediciones de la cabeza y la cola de los espermatozoides. Resultados. Se obtuvo semen en el 100% (10/10) de los animales. El mayor número de eyaculaciones (80%; 8/10), se obtuvo con un voltaje máximo de 6V. El color fue blanco, de aspecto lechoso, los valores promedio fueron volumen 135.5±93.56 µl, pH 8.14±0.38, motilidad masal 32.60±13.46%, motilidad individual 34±19.81%, viabilidad 51.3±19.42%, concentración espermática 127±59.01x106 espermatozoides/mL y morfología 51.3±19.42 espermatozoides normales. La longitud de la cabeza fue 5.41±0.7 µm, el ancho de la cabeza 3.77±0.5 µm y área de la cabeza 75.66±20.6 µm 2 . La longitud de la cola fue 27.9±11.3 µm. Conclusiones. La obtención del semen fue satisfactoria mediante electroeyaculación, sin presentar notables diferencias en las características del semen y morfología de los espermatozoides con otros roedores silvestres de menor tamaño, aunque se observó una alta variabilidad de estas características entre los animales muestreados posiblemente por la heterogeneidad de los animales experimentales.Palabras clave: concentración espermática, motilidad individual, motilidad masal (Fuente: AIMS). ABSTRACTObjetive. Determine the characteristics of semen and morphometry of the Capybara (Hydrochoerus hydrochaeris) spermatozoid. Materials and methods. 10 males, weighing between 21-45 kg, which were restrained and anesthetized, were used in the study. The semen sample was obtained by electroejaculation and the color, volume, pH, mass motility, individual motility, viability, concentration and morphology were determined. Measurements of the head and tail of spermatozoids were also ORIGINAL Rev.MVZ Córdoba 17(2):2991-2997, 2012.

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Collection and evaluation of epididymal sperm in captive agoutis (Dasyprocta aguti)

Cited by 20 publications

References 23 publications

Thoracic and heart biometrics of non-anesthetized agouti (Dasyprocta primnolopha Wagler, 1831) measured on radiographic images

Thoracic and heart biometrics of non-anesthetized agouti (Dasyprocta primnolopha Wagler, 1831) measured on radiographic images

Electrocardiogram assessment in non-anaesthetized clinically healthy agouti (Dasyprocta primnolopha, Wagler 1831)

Obtención y evaluación del semen de capibara Hydrochoerus hydrochaeris

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