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1.
R. bras. Ci. avíc. ; 17(2): 145-150, abr.-jun. 2015. ilus, tab
Artigo em Inglês | VETINDEX | ID: vti-17119

Resumo

Brazilian poultry production is very efficient and demands maximum broiler performance. Therefore, digestive system pathologies have a relevant role. Considering it is difficult to obtain consistent information on intestinal morphometric analysis, this study aimed at establishing essential and clear criteria for the collection of intestinal segments for morphometric analysis. Fifteen 13-d-old broilers were sacrificed and three intestinal segments were collected per bird. Two 3-cm long sections were obtained from each of the intestinal segments. Samples were collected open or closed. The closed samples were transversely, hemicylindrically, or longitudinally sectioned. Samples were processed and stained with hematoxylin and eosin. The number of microscopic fields in each section was counted. Villi presenting the base clearly embedded in the submucosa, no damage or folds, and simple columnar epithelium at the tip were considered adequate for measurements. These villi were counted in each sample. The results shows that hemicylindrical sections presented the highest number of observation fields, with an average of 9.76 fields. Jejunum samples were among the three highest average villi counts, with 18.23 in longitudinal sections and 15.61 in hemicylindrical sections. The results of the present study indicate that hemicylindrical sectioning and jejunal samples were, respectively, the best sectioning method and the best intestinal segment for the morphometric analysis of the intestines of broilers.(AU)


Assuntos
Animais , Aves Domésticas/anatomia & histologia , Aves Domésticas/crescimento & desenvolvimento , Intestinos/anatomia & histologia
2.
Rev. bras. ciênc. avic ; 17(2): 145-150, abr.-jun. 2015. ilus, tab
Artigo em Inglês | VETINDEX | ID: biblio-1490158

Resumo

Brazilian poultry production is very efficient and demands maximum broiler performance. Therefore, digestive system pathologies have a relevant role. Considering it is difficult to obtain consistent information on intestinal morphometric analysis, this study aimed at establishing essential and clear criteria for the collection of intestinal segments for morphometric analysis. Fifteen 13-d-old broilers were sacrificed and three intestinal segments were collected per bird. Two 3-cm long sections were obtained from each of the intestinal segments. Samples were collected open or closed. The closed samples were transversely, hemicylindrically, or longitudinally sectioned. Samples were processed and stained with hematoxylin and eosin. The number of microscopic fields in each section was counted. Villi presenting the base clearly embedded in the submucosa, no damage or folds, and simple columnar epithelium at the tip were considered adequate for measurements. These villi were counted in each sample. The results shows that hemicylindrical sections presented the highest number of observation fields, with an average of 9.76 fields. Jejunum samples were among the three highest average villi counts, with 18.23 in longitudinal sections and 15.61 in hemicylindrical sections. The results of the present study indicate that hemicylindrical sectioning and jejunal samples were, respectively, the best sectioning method and the best intestinal segment for the morphometric analysis of the intestines of broilers.


Assuntos
Animais , Aves Domésticas/anatomia & histologia , Aves Domésticas/crescimento & desenvolvimento , Intestinos/anatomia & histologia
3.
Arq. bras. med. vet. zootec ; 66(4): 1010-1014, 08/2014. graf
Artigo em Português | VETINDEX | ID: vti-11093

Resumo

Um ganso adulto macho (Anser cygnoides), da família Anseriformes, de idade desconhecida, proveniente de uma criação da Universidade Luterana do Brasil, foi encontrado morto, sem apresentar histórico clínico, e foi submetido à investigação post mortem no Setor de Patologia Veterinária do Hospital Veterinário. Com base nos achados de necropsia e no exame histopatológico, definiu-se como causa da morte do animal hemorragia interna em razão da ruptura de vasos sanguíneos em uma neoplasia no testículo direito (sertolioma), com metástase no fígado.(AU)


An adult male goose (Anser cygnoides) of unknown age, raised at the Lutheran University of Brazil, was found dead without showing clinical history and was submitted for post mortem investigation in the Department of Pathology of the Veterinary Hospital. From the necropsy and histopathological findings, the cause of death was defined as exsanguination due to intestinal hemorrhage from ruptured vessels in a tumor in the right testis, which also presented hepatic metastasis.(AU)


Assuntos
Animais , Masculino , Gansos , Doenças das Aves Domésticas/patologia , Tumor de Células de Sertoli/veterinária , Neoplasias Testiculares/veterinária , Autopsia/veterinária , Hemorragia/veterinária , Testículo/patologia
4.
Arq. bras. med. vet. zootec ; 58(3): 316-319, jun. 2006. ilus
Artigo em Português | VETINDEX | ID: vti-6976

Resumo

Relatam-se dois casos de listeriose ocorridos em ovinos leiteiros da raca Lacaune, mantidos em confinamento e alimentados com silagem de milho. O exame histológico do tecido nervoso mostrou meningoencefalite supurada, e a imunoistoquímica foi positiva para Listeria monocytogenes com isolamento da bactéria do tecido nervoso. Enfatiza-se a ocorrência dessa enfermidade em ovinos leiteiros que apresentavam lesaes na cavidade oral e eram alimentados com silagem de baixa qualidade.(AU)


Clinical cases of listeriosis in two Lacaune rams, fed silage in a lot, are reported. Histological examination of nervous tissue revealed purulent meningoencephalitis, and L. monocytogenes was detected in nervous tissue by immunohistochemistry procedures. This disease should be suspected when oral lesions are visible in dairy sheep fed low quality silage.(AU)


Assuntos
Animais , Listeriose/epidemiologia , Meningoencefalite/diagnóstico , Listeria monocytogenes/isolamento & purificação , Ovinos
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