Testicular Histomorphometric Evaluation of Zebu Bull Breeds.
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1000190 |
Resumo: | The objective of this study was to evaluate the quantitative histology and testicular biometrics in zebu bulls of different breeds. Testicular fragments of Nelore (n=10), Polled Nelore (n=6), Gir (n=5), Guzerat (n=5) and Tabapuã bulls (n=5) were used. The fragments were perfusion-fixed in Karnovsky solution, embedded in glycol methacrylate and stained with toluidine blue-1% sodium borate. The Nelore animals had a higher tubular volumetric proportion (85.2%) and greater height of the seminiferous epithelium (73.2 ?m) than the Gir, Guzerat and Tabapuã breeds. The Nelore animals also had a higher volumetric proportion of Leydig cells (5.2%) than the Guzerat and Tabapuã breeds. There was no significant difference for any of these parameters between the Nelore and Polled Nelore breeds. The gonadosomatic index, seminiferous tubule diameter, cross-sectional area of the seminiferous tubule and tubule length (total length and length per gram of testicular parenchyma) did not vary among the breeds studied. The morphometric parameters evaluated suggested that the genetic selection applied to the Nelore and Polled Nelore breeds improved the efficiency of spermatogenesis in these breeders. |
id |
EMBR_8788289e34b60c515306da54a51b2071 |
---|---|
oai_identifier_str |
oai:www.alice.cnptia.embrapa.br:doc/1000190 |
network_acronym_str |
EMBR |
network_name_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository_id_str |
2154 |
spelling |
Testicular Histomorphometric Evaluation of Zebu Bull Breeds.TestisVolumetric proportionSeminiferous tubulecattleThe objective of this study was to evaluate the quantitative histology and testicular biometrics in zebu bulls of different breeds. Testicular fragments of Nelore (n=10), Polled Nelore (n=6), Gir (n=5), Guzerat (n=5) and Tabapuã bulls (n=5) were used. The fragments were perfusion-fixed in Karnovsky solution, embedded in glycol methacrylate and stained with toluidine blue-1% sodium borate. The Nelore animals had a higher tubular volumetric proportion (85.2%) and greater height of the seminiferous epithelium (73.2 ?m) than the Gir, Guzerat and Tabapuã breeds. The Nelore animals also had a higher volumetric proportion of Leydig cells (5.2%) than the Guzerat and Tabapuã breeds. There was no significant difference for any of these parameters between the Nelore and Polled Nelore breeds. The gonadosomatic index, seminiferous tubule diameter, cross-sectional area of the seminiferous tubule and tubule length (total length and length per gram of testicular parenchyma) did not vary among the breeds studied. The morphometric parameters evaluated suggested that the genetic selection applied to the Nelore and Polled Nelore breeds improved the efficiency of spermatogenesis in these breeders.PAULO ANTÔNIO TERRABUIO ANDREUSSI, UFMS; DEILER SAMPAIO COSTA, UFMS; FÁBIO JOSÉ CARVALHO FARIA, UFMS; CARLOS ANTÔNIO CARVALHO FERNANDES, BIOTAN; MARCELO DINIZ SANTOS, UNIC; JULIANA CORREA BORGES SILVA, CPAP.ANDREUSSI, P. A. T.COSTA, D. S.FARIA, F. J. C.FERNANDES, C. A. C.SANTOS, M. D.SILVA, J. C. B.2014-11-14T11:11:11Z2014-11-14T11:11:11Z2014-11-1420142017-11-27T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleBrazilian Archives of Biology and Technology, v. 57, n. 6, p. 900-907, nov. dec. 2014.1516-8913http://www.alice.cnptia.embrapa.br/alice/handle/doc/100019010.1590/S1516-8913201402262enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-16T01:47:01Zoai:www.alice.cnptia.embrapa.br:doc/1000190Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-16T01:47:01falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-16T01:47:01Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Testicular Histomorphometric Evaluation of Zebu Bull Breeds. |
title |
Testicular Histomorphometric Evaluation of Zebu Bull Breeds. |
spellingShingle |
Testicular Histomorphometric Evaluation of Zebu Bull Breeds. ANDREUSSI, P. A. T. Testis Volumetric proportion Seminiferous tubule cattle |
title_short |
Testicular Histomorphometric Evaluation of Zebu Bull Breeds. |
title_full |
Testicular Histomorphometric Evaluation of Zebu Bull Breeds. |
title_fullStr |
Testicular Histomorphometric Evaluation of Zebu Bull Breeds. |
title_full_unstemmed |
Testicular Histomorphometric Evaluation of Zebu Bull Breeds. |
title_sort |
Testicular Histomorphometric Evaluation of Zebu Bull Breeds. |
author |
ANDREUSSI, P. A. T. |
author_facet |
ANDREUSSI, P. A. T. COSTA, D. S. FARIA, F. J. C. FERNANDES, C. A. C. SANTOS, M. D. SILVA, J. C. B. |
author_role |
author |
author2 |
COSTA, D. S. FARIA, F. J. C. FERNANDES, C. A. C. SANTOS, M. D. SILVA, J. C. B. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
PAULO ANTÔNIO TERRABUIO ANDREUSSI, UFMS; DEILER SAMPAIO COSTA, UFMS; FÁBIO JOSÉ CARVALHO FARIA, UFMS; CARLOS ANTÔNIO CARVALHO FERNANDES, BIOTAN; MARCELO DINIZ SANTOS, UNIC; JULIANA CORREA BORGES SILVA, CPAP. |
dc.contributor.author.fl_str_mv |
ANDREUSSI, P. A. T. COSTA, D. S. FARIA, F. J. C. FERNANDES, C. A. C. SANTOS, M. D. SILVA, J. C. B. |
dc.subject.por.fl_str_mv |
Testis Volumetric proportion Seminiferous tubule cattle |
topic |
Testis Volumetric proportion Seminiferous tubule cattle |
description |
The objective of this study was to evaluate the quantitative histology and testicular biometrics in zebu bulls of different breeds. Testicular fragments of Nelore (n=10), Polled Nelore (n=6), Gir (n=5), Guzerat (n=5) and Tabapuã bulls (n=5) were used. The fragments were perfusion-fixed in Karnovsky solution, embedded in glycol methacrylate and stained with toluidine blue-1% sodium borate. The Nelore animals had a higher tubular volumetric proportion (85.2%) and greater height of the seminiferous epithelium (73.2 ?m) than the Gir, Guzerat and Tabapuã breeds. The Nelore animals also had a higher volumetric proportion of Leydig cells (5.2%) than the Guzerat and Tabapuã breeds. There was no significant difference for any of these parameters between the Nelore and Polled Nelore breeds. The gonadosomatic index, seminiferous tubule diameter, cross-sectional area of the seminiferous tubule and tubule length (total length and length per gram of testicular parenchyma) did not vary among the breeds studied. The morphometric parameters evaluated suggested that the genetic selection applied to the Nelore and Polled Nelore breeds improved the efficiency of spermatogenesis in these breeders. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-11-14T11:11:11Z 2014-11-14T11:11:11Z 2014-11-14 2014 2017-11-27T11:11:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Brazilian Archives of Biology and Technology, v. 57, n. 6, p. 900-907, nov. dec. 2014. 1516-8913 http://www.alice.cnptia.embrapa.br/alice/handle/doc/1000190 10.1590/S1516-8913201402262 |
identifier_str_mv |
Brazilian Archives of Biology and Technology, v. 57, n. 6, p. 900-907, nov. dec. 2014. 1516-8913 10.1590/S1516-8913201402262 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1000190 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
_version_ |
1794503401947529216 |