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| Registros recuperados : 27 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
18/10/2018 |
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Data da última atualização: |
18/10/2018 |
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Autoria: |
PEREIRA, L. F.; DIAS, F. G. G.; MIGUEL, M. P.; HONSHO, C. S.; TAVARES, D. C.; HELLÚ, J. A. A.; SOUZA, F. F. |
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Afiliação: |
Lucas F. Pereira, Medicina Veterinária/Universidade de Franca - Unifran; Fernanda G. G. Dias, Medicina Veterinária/Universidade de Franca - Unifran; Marina P. Miguel, Medicina Veterinária/Universidade Federal de Goiânia - UFG; Cristiane S. Honsho, Medicina Veterinária/Universidade de Franca - Unifran; Denise C. Tavares, Medicina Veterinária/Universidade de Franca - Unifran; José A. A. Hellú, Medicina Veterinária/Universidade de Franca - Unifran; Fabiana F. Souza, Departamento de Medicina Veterinária Preventiva e Reprodução Animal/Faculdade de Ciências Agrárias e Veterinárias - FCAV/Universidade Estadual Paulista Júlio de Mesquita Filho - Unesp. |
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Título: |
Testicular histological evaluation and serum testosterone concentrations of bulls after chemical castration with calcium chloride. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, Brasília, DF, v. 38, n 8, p. 1554-1563, agosto 2018 |
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Idioma: |
Inglês |
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Notas: |
Título em português: Avaliação histológica e das concentrações séricas de testosterona de touros após a castração química com cloreto de cálcio. |
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Conteúdo: |
Orchiectomized bulls have advantages in the meat quality and ease of handling. Chemical castration is an option for surgical castration and the sclerosing agents can be administered into the testicular or epididymis parenchyma. These agents have a lower incidence of complications than surgery, especially when associated with dimethylsulfoxide (DMSO), which has anti‑inflammatory action and increases the absorption of other drugs. Thus, this study aimed to evaluate the effect of a single intratesticular injection of calcium chloride solution associated with DMSO for the chemical sterilization of bulls. Twenty-four young adult bulls were utilized, distributed into 3 groups (G20, G30 and G40, n = 8/group), according to the calcium chloride concentration (20, 30 and 40%), in 10mL volume. Serum concentrations of testosterone, body weight, testicular volume and ecotexture, clinical signs and behavior and were evaluated for 45 days. Thus, the animals were orchiectomized and testicles were assessed histologically. There were no changes in body weight, decreased serum testosterone concentrations (except G30), signs of scrotal sensitivity or changes in behavior over the period. However, there was significant increase in testicular volume, especially on the 2nd and 3rd day after treatment, with values returning to the value initials at 15 days. Testicular adherence and firm consistency were observed during orchiectomy. Ultrasound examination revealed a loss of integrity of the median raphe, with cavity formation and an alteration of the testicular echotexture. In the histological evaluation, coagulation necrosis of seminiferous tubules and interstitial cells was observed, mainly in the medial portion in all groups. Some animals presented total absence of tubular formations in all the studied groups, being the effects of greater intensity in the G40. Additionally, pronounced edema was noted in all groups, especially in G40. Inflammatory infiltrate, fibroplasia and neovascularization were found to be predominantly discrete. Based on the conditions used in this study, we conclude that calcium chloride associated with DMSO can be used as a method of chemical sterilization in bovines. MenosOrchiectomized bulls have advantages in the meat quality and ease of handling. Chemical castration is an option for surgical castration and the sclerosing agents can be administered into the testicular or epididymis parenchyma. These agents have a lower incidence of complications than surgery, especially when associated with dimethylsulfoxide (DMSO), which has anti‑inflammatory action and increases the absorption of other drugs. Thus, this study aimed to evaluate the effect of a single intratesticular injection of calcium chloride solution associated with DMSO for the chemical sterilization of bulls. Twenty-four young adult bulls were utilized, distributed into 3 groups (G20, G30 and G40, n = 8/group), according to the calcium chloride concentration (20, 30 and 40%), in 10mL volume. Serum concentrations of testosterone, body weight, testicular volume and ecotexture, clinical signs and behavior and were evaluated for 45 days. Thus, the animals were orchiectomized and testicles were assessed histologically. There were no changes in body weight, decreased serum testosterone concentrations (except G30), signs of scrotal sensitivity or changes in behavior over the period. However, there was significant increase in testicular volume, especially on the 2nd and 3rd day after treatment, with values returning to the value initials at 15 days. Testicular adherence and firm consistency were observed during orchiectomy. Ultrasound examination revealed a loss of integrity of the med... Mostrar Tudo |
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Palavras-Chave: |
Chemical castration; Sclerosing agent; Serum testosterone; Testicle. |
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Thesagro: |
Cloreto de Cálcio; Histologia; Testosterona; Touro. |
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Thesaurus NAL: |
Bulls; Calcium chloride; Dimethyl sulfoxide; Histology; Seminiferous tubules; Testosterone. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/184704/1/Testicular-histoogical-evaluation.pdf
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Marc: |
LEADER 03458naa a2200373 a 4500
001 2097753
005 2018-10-18
008 2018 bl uuuu u00u1 u #d
100 1 $aPEREIRA, L. F.
245 $aTesticular histological evaluation and serum testosterone concentrations of bulls after chemical castration with calcium chloride.$h[electronic resource]
260 $c2018
500 $aTítulo em português: Avaliação histológica e das concentrações séricas de testosterona de touros após a castração química com cloreto de cálcio.
520 $aOrchiectomized bulls have advantages in the meat quality and ease of handling. Chemical castration is an option for surgical castration and the sclerosing agents can be administered into the testicular or epididymis parenchyma. These agents have a lower incidence of complications than surgery, especially when associated with dimethylsulfoxide (DMSO), which has anti‑inflammatory action and increases the absorption of other drugs. Thus, this study aimed to evaluate the effect of a single intratesticular injection of calcium chloride solution associated with DMSO for the chemical sterilization of bulls. Twenty-four young adult bulls were utilized, distributed into 3 groups (G20, G30 and G40, n = 8/group), according to the calcium chloride concentration (20, 30 and 40%), in 10mL volume. Serum concentrations of testosterone, body weight, testicular volume and ecotexture, clinical signs and behavior and were evaluated for 45 days. Thus, the animals were orchiectomized and testicles were assessed histologically. There were no changes in body weight, decreased serum testosterone concentrations (except G30), signs of scrotal sensitivity or changes in behavior over the period. However, there was significant increase in testicular volume, especially on the 2nd and 3rd day after treatment, with values returning to the value initials at 15 days. Testicular adherence and firm consistency were observed during orchiectomy. Ultrasound examination revealed a loss of integrity of the median raphe, with cavity formation and an alteration of the testicular echotexture. In the histological evaluation, coagulation necrosis of seminiferous tubules and interstitial cells was observed, mainly in the medial portion in all groups. Some animals presented total absence of tubular formations in all the studied groups, being the effects of greater intensity in the G40. Additionally, pronounced edema was noted in all groups, especially in G40. Inflammatory infiltrate, fibroplasia and neovascularization were found to be predominantly discrete. Based on the conditions used in this study, we conclude that calcium chloride associated with DMSO can be used as a method of chemical sterilization in bovines.
650 $aBulls
650 $aCalcium chloride
650 $aDimethyl sulfoxide
650 $aHistology
650 $aSeminiferous tubules
650 $aTestosterone
650 $aCloreto de Cálcio
650 $aHistologia
650 $aTestosterona
650 $aTouro
653 $aChemical castration
653 $aSclerosing agent
653 $aSerum testosterone
653 $aTesticle
700 1 $aDIAS, F. G. G.
700 1 $aMIGUEL, M. P.
700 1 $aHONSHO, C. S.
700 1 $aTAVARES, D. C.
700 1 $aHELLÚ, J. A. A.
700 1 $aSOUZA, F. F.
773 $tPesquisa Veterinária Brasileira, Brasília, DF$gv. 38, n 8, p. 1554-1563, agosto 2018
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Embrapa Unidades Centrais (AI-SEDE) |
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