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1.
Anim. Reprod. (Online) ; 15(4): 1181-1192, out.-dez. 2018. ilus, tab
Artigo em Inglês | VETINDEX | ID: biblio-1461373

Resumo

Dasyprocta spp. (agouti) include wild rodents with highlighted ecological and economic importance, and are considered experimental models for endangered hystricognath rodents. Of late, development of techniques to conserve their genetic material as well as the formation of biobanks is increasing. In this context, this review describes the main advances in the knowledge of the reproductive morphophysiological specificities of agouti as well as the development and improvement of assisted reproductive techniques aimed at conservation, multiplication, and exploitation of their reproductive potential under captivity.


Assuntos
Animais , Dasyproctidae/anatomia & histologia , Dasyproctidae/fisiologia , Técnicas de Reprodução Assistida/veterinária
2.
Anim. Reprod. ; 15(4): 1181-1192, out.-dez. 2018. ilus, tab
Artigo em Inglês | VETINDEX | ID: vti-20072

Resumo

Dasyprocta spp. (agouti) include wild rodents with highlighted ecological and economic importance, and are considered experimental models for endangered hystricognath rodents. Of late, development of techniques to conserve their genetic material as well as the formation of biobanks is increasing. In this context, this review describes the main advances in the knowledge of the reproductive morphophysiological specificities of agouti as well as the development and improvement of assisted reproductive techniques aimed at conservation, multiplication, and exploitation of their reproductive potential under captivity.(AU)


Assuntos
Animais , Dasyproctidae/anatomia & histologia , Dasyproctidae/fisiologia , Técnicas de Reprodução Assistida/veterinária
3.
Acta sci. vet. (Online) ; 46(supl): 1-4, 2018. ilus
Artigo em Português | VETINDEX | ID: vti-734046

Resumo

Background: Ingestion of foreign bodies is one of the most common cases seen among puppies of dogs in the medical clinics of small animals which may be related to their curious behavior. The diagnosis is based on the patients history, clinical signs, and complementary diagnostic imaging tests. The present case report describes the use of complementary imaging tests, showing a partial gastric obstruction caused by cajarana (Spondias cytherea Sonn) in a puppy.Case: At the Veterinary Hospital of the Federal Rural University of the Semi-Arid Region, a 4-month-old male Yorkshire dog was treated. The guardian reported having witnessed the ingestion of a cajarana stone by the animal. During the physical examination, the animal was active, with good nutritional status, normocorated mucosae, and a moderate degree of dehydration, besides a slight pain on palpation in the epigastric region. Hematological examinations included blood counts, blood urea, creatinine, and alkaline phosphatase. A moderate degree of polycythemia was observed, which may be explained by the dehydration caused by the episodes of vomiting. The patient had frequent episodes of vomiting after the reported event and was then referred to the diagnostic imaging sector. During the sonographic examination, a concave echogenic interface associated with a posterior acoustic shadowing was observed in the region of the stomach. The animal was sent for simple radiographs and positive contrast based on barium sulfate due to the suspicion of the presence of a foreign body. On simple radiography, in the left laterolateral view, a little radiopaque structure of circular format with poor definition was observed in the pyloric region. After the simple radiography, approximately 10 mL of barium sulfate contrast was administered orally followed by a new left lateral radiographic imaging.[...](AU)


Assuntos
Animais , Masculino , Cães , Obstrução da Saída Gástrica/diagnóstico por imagem , Obstrução da Saída Gástrica/veterinária , Ultrassonografia/métodos , Radiografia/métodos , Corpos Estranhos/veterinária , Anacardiaceae
4.
Acta Vet. Brasilica ; 12(2): 49-54, jun. 2018. ilus, tab, graf
Artigo em Inglês | VETINDEX | ID: biblio-1453138

Resumo

The aim of this study was to evaluate the diagnosis of estrous in Canindé goats used infrared thermographic images. The Canindé goats used in experiment, belong to Production Center of Small Ruminants. The goats were subjected to estrus induction and monitored with regard to their behavior and blood levels of hormones. Temperature measurements were continuous during estrous signs and even disappearance of behavioral characteristics. Were evaluated different areas in females: vulva, perivulvar, dorse and venter regions, delimited by a quadrant that allowed the specification of assessed region. In addition to specific behavior of estrus in ruminants were observed in vulvar region perivulvar signals swelling and redness and parallel identified the temperature rise of region by thermographic images. Were observed in vulvar region perivulvar signals swelling and redness and parallel identified the temperature rise of that region by thermographic images in goats in estrus. There was a significant effect for all temperatures of the regions evaluated for the thermographic images and infrared thermometer, except for the temperature of the vulvar region. The temperatures measured using the thermographic camera submitted a difference in the data set, allowing measurements observed higher temperatures compared with the temperatures measured with an infrared thermometer. So, due the precision and speed of the method the thermographic images used for detecting estrus is applicable and important. In animal production, thermography has seen used in detection of metabolic disorders, diseases and infections. In addiction, is usedin understanding thermoregulation due to chenges in temperature and the impact of environmental conditions.


Assuntos
Feminino , Animais , Cabras/fisiologia , Estro , Técnicas de Reprodução Assistida/veterinária , Termografia/métodos , Termografia/veterinária
5.
Acta sci. vet. (Impr.) ; 46(supl): 1-4, 2018. ilus
Artigo em Português | VETINDEX | ID: biblio-1457985

Resumo

Background: Ingestion of foreign bodies is one of the most common cases seen among puppies of dogs in the medical clinics of small animals which may be related to their curious behavior. The diagnosis is based on the patient’s history, clinical signs, and complementary diagnostic imaging tests. The present case report describes the use of complementary imaging tests, showing a partial gastric obstruction caused by cajarana (Spondias cytherea Sonn) in a puppy.Case: At the Veterinary Hospital of the Federal Rural University of the Semi-Arid Region, a 4-month-old male Yorkshire dog was treated. The guardian reported having witnessed the ingestion of a cajarana stone by the animal. During the physical examination, the animal was active, with good nutritional status, normocorated mucosae, and a moderate degree of dehydration, besides a slight pain on palpation in the epigastric region. Hematological examinations included blood counts, blood urea, creatinine, and alkaline phosphatase. A moderate degree of polycythemia was observed, which may be explained by the dehydration caused by the episodes of vomiting. The patient had frequent episodes of vomiting after the reported event and was then referred to the diagnostic imaging sector. During the sonographic examination, a concave echogenic interface associated with a posterior acoustic shadowing was observed in the region of the stomach. The animal was sent for simple radiographs and positive contrast based on barium sulfate due to the suspicion of the presence of a foreign body. On simple radiography, in the left laterolateral view, a little radiopaque structure of circular format with poor definition was observed in the pyloric region. After the simple radiography, approximately 10 mL of barium sulfate contrast was administered orally followed by a new left lateral radiographic imaging.[...]


Assuntos
Masculino , Animais , Cães , Corpos Estranhos/veterinária , Obstrução da Saída Gástrica/diagnóstico por imagem , Obstrução da Saída Gástrica/veterinária , Radiografia/métodos , Ultrassonografia/métodos , Anacardiaceae
6.
Acta Vet. bras. ; 12(2): 49-54, jun. 2018. ilus, tab, graf
Artigo em Inglês | VETINDEX | ID: vti-735055

Resumo

The aim of this study was to evaluate the diagnosis of estrous in Canindé goats used infrared thermographic images. The Canindé goats used in experiment, belong to Production Center of Small Ruminants. The goats were subjected to estrus induction and monitored with regard to their behavior and blood levels of hormones. Temperature measurements were continuous during estrous signs and even disappearance of behavioral characteristics. Were evaluated different areas in females: vulva, perivulvar, dorse and venter regions, delimited by a quadrant that allowed the specification of assessed region. In addition to specific behavior of estrus in ruminants were observed in vulvar region perivulvar signals swelling and redness and parallel identified the temperature rise of region by thermographic images. Were observed in vulvar region perivulvar signals swelling and redness and parallel identified the temperature rise of that region by thermographic images in goats in estrus. There was a significant effect for all temperatures of the regions evaluated for the thermographic images and infrared thermometer, except for the temperature of the vulvar region. The temperatures measured using the thermographic camera submitted a difference in the data set, allowing measurements observed higher temperatures compared with the temperatures measured with an infrared thermometer. So, due the precision and speed of the method the thermographic images used for detecting estrus is applicable and important. In animal production, thermography has seen used in detection of metabolic disorders, diseases and infections. In addiction, is usedin understanding thermoregulation due to chenges in temperature and the impact of environmental conditions.(AU)


Assuntos
Animais , Feminino , Cabras/fisiologia , Estro , Técnicas de Reprodução Assistida/veterinária , Termografia/métodos , Termografia/veterinária
7.
Acta sci. vet. (Online) ; 42: Pub. 1217, 31 out. 2014. tab
Artigo em Português | VETINDEX | ID: vti-31104

Resumo

Background: The development of semen cryopreservation protocols for collared peccaries (Pecari tajacu) would contribute to its preservation and multiplication. Nowadays, studies on this subject report the use of Tris and powdered coconutwater (ACP®-116c) as extenders. However, such studies are limited to the post-thawing immediate evaluation of samples.The knowledge on the sperm survival after thawing would be important in order to schedule the moment and the vial forartificial insemination. Therefore, the aim of the present research was to verify the effect of Tris and ACP extenders on thesperm survival of frozen-thawed semen, centrifuged or not, derived from collared peccaries.Materials, Methods & Results: Semen from 12 adult males collared peccaries were obtained by electroejaculation. Ejaculateswere immediately evaluated for sperm motility, vigor, viability, functional membrane integrity and morphology. Sampleswere diluted in Tris or ACP, both plus 10% egg yolk and 3% glycerol. Then, they were packaged into 0.25 mL straws, andstored in liquid nitrogen. After one week, samples were thawed at 38ºC/1 min and divided into two aliquots: one immediately diluted in the same extender, and the other submitted to centrifugation and then re-diluted. A thermorresistance testwas conducted including assessments at 0, 15, 30, 45, and 60 min as described for fresh semen. After analyzing the dataimmediately after thawing, we verify that coconut water provided a better preservation of sperm motility (41.3 ± 6.9%)and vigor (2.9 ± 0.2) than Tris, 33.1 ± 5.9% motile sperm with vigor 2.5 ± 0.2 (P < 0.05). During thermorresistance test...(AU)


Assuntos
Animais , Masculino , Artiodáctilos , Preservação do Sêmen/métodos , Preservação do Sêmen/veterinária , Criopreservação/métodos , Criopreservação/veterinária
8.
Ci. Rural ; 44(8): 1494-1498, Aug. 2014. tab
Artigo em Português | VETINDEX | ID: vti-28326

Resumo

Em ejaculados provenientes de 28 catetos, verificou-se a existência de relações entre a concentração espermática determinada por meio da câmara de Neubauer e a tramitância observada por espectrofotometria, utilizando comprimentos de onda variando de 530 a 590nm. Os ejaculados apresentaram uma concentração média de 283,9±30,8x106 espermatozoides mL-1, com variação de 30 a 640x106 espermatozoides mL-1. Os valores para tramitância variaram entre 36,9 a 96,3, nos diferentes comprimentos de onda. Não foram detectadas relações significativas entre os dois métodos (P>0,05). Dessa forma, não se recomenda a espectrofotometria para os procedimentos de rotina na determinação da concentração espermática em catetos.(AU)


In ejaculates derived from 28 collared peccaries, we verified the existence of relationships between sperm concentration determined by the Neubauer counting chamber and the tramitance verified by spectrophotometer, under wavelengths varying from 530 to 590nm. Ejaculates presented a concentration of 283.9±30.8x106sperm m-1, varying from 30 to 640x106sperm mL-1. Values for tramitance varied from 36.9 to 96.3, under different wavelengths. No significant relationship was verified between two methods (P>0.05). Thus, the spectrophotometer is not recommended for routine procedures of sperm concentration measurement in collared peccaries.(AU)


Assuntos
Espectrofotometria , Contagem de Espermatozoides/veterinária , Artiodáctilos , Sêmen
9.
Acta sci. vet. (Impr.) ; 42: Pub.1217-Dec. 12, 2014. tab
Artigo em Português | VETINDEX | ID: biblio-1457238

Resumo

Background: The development of semen cryopreservation protocols for collared peccaries (Pecari tajacu) would contribute to its preservation and multiplication. Nowadays, studies on this subject report the use of Tris and powdered coconutwater (ACP®-116c) as extenders. However, such studies are limited to the post-thawing immediate evaluation of samples.The knowledge on the sperm survival after thawing would be important in order to schedule the moment and the vial forartificial insemination. Therefore, the aim of the present research was to verify the effect of Tris and ACP extenders on thesperm survival of frozen-thawed semen, centrifuged or not, derived from collared peccaries.Materials, Methods & Results: Semen from 12 adult males collared peccaries were obtained by electroejaculation. Ejaculateswere immediately evaluated for sperm motility, vigor, viability, functional membrane integrity and morphology. Sampleswere diluted in Tris or ACP, both plus 10% egg yolk and 3% glycerol. Then, they were packaged into 0.25 mL straws, andstored in liquid nitrogen. After one week, samples were thawed at 38ºC/1 min and divided into two aliquots: one immediately diluted in the same extender, and the other submitted to centrifugation and then re-diluted. A thermorresistance testwas conducted including assessments at 0, 15, 30, 45, and 60 min as described for fresh semen. After analyzing the dataimmediately after thawing, we verify that coconut water provided a better preservation of sperm motility (41.3 ± 6.9%)and vigor (2.9 ± 0.2) than Tris, 33.1 ± 5.9% motile sperm with vigor 2.5 ± 0.2 (P < 0.05). During thermorresistance test...


Assuntos
Masculino , Animais , Artiodáctilos , Criopreservação/métodos , Criopreservação/veterinária , Preservação do Sêmen/métodos , Preservação do Sêmen/veterinária
10.
Acta sci. vet. (Impr.) ; 41(supl.1): Pub. 20, 2013. ilus
Artigo em Português | VETINDEX | ID: biblio-1372655

Resumo

Background: Transmissible venereal tumor (TVT) is a neoplasm which primarily affects the genital mucosa of canines. However, this tumor has been described in several extragenital areas. Although there are no major difficulties to confirm a TVT when present in the genitalia, it can be confused with several conditions, either neoplastic or non-neoplastic, when located beyond the external reproductive organs. The involvement of multiple extragenital locations is poorly reported, which may compromise the tissues involved and hinder the establishment of a diagnostic conclusion. The study aimed to describe a case of multiple and extragenital TVT in dogs. Case: A two year old mongrel dog had a history of swollen nose and ocular abnormalities. The patient underwent physical examination followed by request of nose and eye cytology. The animal was euthanized and sent for autopsy; the material was intended for cytological diagnosis. It was found an increase in volume in the middle third of the nasal region. In the oral cavity, there was a tumor in the caudal third of the hard palate. Neoformations were also detected in the third eyelid. The nasal and eyelid cytological examination was compatible with TVT plasmacytoid pattern. During the necropsy, it was also detected tumors in the nasal cavity, occupying the space of turbinal bones Proliferation occurred even in the palatine bone and pharynx. In the visual system, the tumors did not involve other attachments or eyeball chambers There were no anatomical lesions In other areas. The cytopathology of all tumors presented diagnosis similar to the initial microscopic findings, thus characterizing a framework of multiple extragenital plasmacytoid TVT. Discussion: A study found that the nasal cavity and skin tissue were the locations most affected by the presentation of extragenital TVT. So, there was a similarity to the present case in relation to the shape of the nasal TVT; however, the occurrence in other sites such as the oral cavity and third eyelid is uncommon, although found in the patient reported. The extragenital location may appear regardless to genital lesions. In the examined animal, the placement of the TVT to extragenital areas such as nasal and ocular adnexa was justified by the fact that these regions correspond to anatomical sites exposed to direct physical contact for the acquisition of neoplastic cells, possibly because of the pre­mating behavior of the male toward the bitch that housed the tumor. As an intranasal neoplasia progresses, some signs, such as the swelling of the hard palate, are presented. Thus, in the current study, the proliferation showed in the oral cavity and the pharynx was regarded as an extension of local mechanical nasal cancer. Recent surveys have ranked the TVT as standard plasmocitoyd, linphocitoyd or mixed. It has been hypothesized that all TVTs start as linphocitoyd, become mixed and then plasmocytoid. The latter condition usually suggests the tumor presence for more than eight weeks, often being seen in non genitals. Accordingly, in the present case there was an agreement with the usual standard morfocelular and the extragenital aspect observed. This morphology suggested that the evolution of TVT showed up late. Although TVT is essentially related to the external reproductive organs, one should be alert to its exclusively extragenital presentation. This peculiar location can lead to a delayed diagnosis because of the similarity with affections of another nature.


Assuntos
Animais , Masculino , Cães , Tumores Venéreos Veterinários/diagnóstico , Neoplasias Nasais/veterinária , Doenças do Cão/diagnóstico , Carcinoma de Células Escamosas de Cabeça e Pescoço/veterinária , Cavidade Nasal , Cães
11.
Ciênc. Anim. (Impr.) ; 22(1): 219-234, 2012.
Artigo em Português | VETINDEX | ID: biblio-1472135

Resumo

A biodiversidade vem sofrendo grande diminuição nas últimas décadas, apesar do incremento de algumas iniciativas, que visam o uso sustentável da diversidade biológica. A criação de bancos de germoplasma, os quais abrigam coleções-base para a conservação de ampla variabilidade genética vegetal e animal, surge como alternativa para manutenção da biodiversidade. O presente trabalho apresenta dados acerca da legislação vigente que regulariza a conservação e uso de recursos genéticos, bem como os aspectos técnicos relativos a formação de coleções de gametas e embriões, particularmente, visando a preservação de espécies silvestres no Brasil.


Biodiversity has suffered great loss in recent decades, despite the increased number of initiatives that aims the sustainable use of biological diversity. The creation of germplasm banks, which are collections that conserves the broad genetic variability of plants and animals, is an alternative to maintaining biodiversity. This paper presents data about the legislation that regulates the use and conservation of genetic resources, as well as the technical aspects of the formation of collections of gametes and embryos, particularly in the preservation of wild species in Brazil.


Assuntos
Animais , Biodiversidade , Embrião de Mamíferos/citologia , Animais Selvagens/classificação
12.
Ciênc. Anim. (Impr.) ; 22(1): 219-234, 2012.
Artigo em Português | VETINDEX | ID: vti-14390

Resumo

A biodiversidade vem sofrendo grande diminuição nas últimas décadas, apesar do incremento de algumas iniciativas, que visam o uso sustentável da diversidade biológica. A criação de bancos de germoplasma, os quais abrigam coleções-base para a conservação de ampla variabilidade genética vegetal e animal, surge como alternativa para manutenção da biodiversidade. O presente trabalho apresenta dados acerca da legislação vigente que regulariza a conservação e uso de recursos genéticos, bem como os aspectos técnicos relativos a formação de coleções de gametas e embriões, particularmente, visando a preservação de espécies silvestres no Brasil.(AU)


Biodiversity has suffered great loss in recent decades, despite the increased number of initiatives that aims the sustainable use of biological diversity. The creation of germplasm banks, which are collections that conserves the broad genetic variability of plants and animals, is an alternative to maintaining biodiversity. This paper presents data about the legislation that regulates the use and conservation of genetic resources, as well as the technical aspects of the formation of collections of gametes and embryos, particularly in the preservation of wild species in Brazil.(AU)


Assuntos
Animais , Biodiversidade , Embrião de Mamíferos/citologia , Animais Selvagens/classificação
13.
Acta Vet. Brasilica ; 4(supl): S30-S35, 28 set. 2010.
Artigo em Português | VETINDEX | ID: biblio-1380343

Resumo

O diagnóstico precoce de gestação em caprinos, como em outras espécies domésticas, tornou-se uma necessidade em regimes de manejo semi-intensivo e intensivo dentro do sistema de exploração produtivo. O diagnóstico gestacional através da ultrassonografia em caprinos apresenta uma grande importância de ordem prática em função da limitação anatômica para a avaliação do sistema genital através da palpação retal. Esta técnica também é usada na identificação de patologias causadoras de infertilidade no macho e na fêmea caprina facilitando o diagnóstico e o tratamento. A ultrassonografia em tempo real (modo-B) é atualmente o método de diagnóstico de gestação mais utilizado em função de suas vantagens: é um método rápido, de elevada acurácia, não é invasivo e não oferece risco nem para a fêmea nem para o concepto. Esta revisão apresenta os princípios e métodos ultrassonográficos bem como a aplicação desta técnica na reprodução de caprinos.


The early pregnancy diagnosis in goats, as for other domestic species, is necessary for semi-intensive and intensive management into productive exploration systems. In goats, pregnancy diagnosis by ultrasonography shows a practical importance since is not possible to realize rectal palpation of the genital tract per as in larger animals. The technique is also used for infertility pathological identification in male and female goats, facilitating diagnosis and treatment. The ultrasonography in real time is currently the method of diagnosis of pregnancy most widely used due to its advantages: It is a fast method, high accuracy, is not invasive and is not risk for either the female or the concept. This review shows the ultrasonographic principles and methods as well as its practical use in goat reproduction.


Assuntos
Animais , Feminino , Gravidez , Análise para Determinação do Sexo/veterinária , Prenhez , Cabras , Ultrassonografia Pré-Natal/veterinária , Ultrassonografia/métodos
14.
Acta Vet. Brasilica ; 4(1): 15-24, abr. 2010. ilus, tab
Artigo em Português | VETINDEX | ID: biblio-1379504

Resumo

A ultrassonografia é um método de diagnóstico por imagem que fornece informações em tempo real da arquitetura dos órgãos abdominais e pélvicos. As interfaces dos tecidos refletem o som, onde esta reflexão é processada por um computador produzindo uma fotografia ou uma imagem em movimento em um monitor. O presente artigo consiste de uma breve análise da formação da imagem ultrassonográfica, onde conceitos de terminologia, instrumentação e modos de exibição são detalhadamente discutidos. Ainda, compila as informações sobre os princípios físicos da ultrassonografia. A ampliação do conhecimento desta tecnologia possibilita a melhor compreensão das aplicações e limitações deste método diagnóstico, que tem se tornado rotina na medicina veterinária de pequenos animais.


The ultrasound scan is a diagnostic method by image that details information in real-time of the abdominal and pelvic organs structure. Tissues interfaces reflect the sounds and that mentioned reflection is processed by a computer which shoots either a picture or a real-time movement image into a screen. Thecurrent paper consists of a brief analysis of the ultrasound scan image formation in which terminologyconcepts, instrumentation and ways of displaying are circumstantially discussed. Yet, it summarizes information about the ultrasound scan material principles. The knowledge enlargement of this technology allows the best comprehension of the applications and limitations of this diagnostic method, which has become a routine in the veterinarian medicine for small animals.


Assuntos
Diagnóstico por Imagem/instrumentação , Ultrassonografia/instrumentação , Ultrassonografia/métodos , Fenômenos Físicos
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