Plasma urea levels on reproductive parameters of wool-less rams (Ovis aries, LINNAEUS, 1758)
Autor(a) principal: | |
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Data de Publicação: | 2000 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Veterinary Research and Animal Science |
Texto Completo: | https://www.revistas.usp.br/bjvras/article/view/5862 |
Resumo: | The effect of increased plasma urea levels on reproductive parameters of Santa Ines Brazilian breed rams (Ovis aries) was determined during two phases, 60 days in length each. During the first phase, 18 animals divided into three blocks according to scrotal circumference were submitted to the following treatments: diet A1- with nitrogen levels according to ARC (1980); diet B1 - nitrogen levels 133% higher than A1; and diet C1 - nitrogen levels 166% higher than A1. During the second phase, 12 animals divided into two groups received diet A2- with nitrogen levels according to ARC (1980), and diet B2 - nitrogen levels 200% higher than diet A2, respectively. The increase in protein equivalents was obtained by adding 20, 40 and 60 g of feed grade urea to treatments B1, C1 and B2, respectively. Semen was collected daily using an artificial vagina and analyzed twice a week for progressive motility; vigor, whirling, density, pH, concentration, sperm morphology, ejaculated volume and total sperm per ejaculate. Urea concentration was determined weekly in semen and plasma. Urea level increased in plasma and semen (p < 0.0001) during both phases but did not affect the parameters studied. |
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Brazilian Journal of Veterinary Research and Animal Science |
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Plasma urea levels on reproductive parameters of wool-less rams (Ovis aries, LINNAEUS, 1758)Nível plasmático de uréia sobre parâmetros reprodutivos de machos ovinos deslanados (Ovis aries, LINNAEUS, 1758)UréiaSêmenReproduçãoCarneirosRaçõesUreaSemenReproductionRamsFeed RationThe effect of increased plasma urea levels on reproductive parameters of Santa Ines Brazilian breed rams (Ovis aries) was determined during two phases, 60 days in length each. During the first phase, 18 animals divided into three blocks according to scrotal circumference were submitted to the following treatments: diet A1- with nitrogen levels according to ARC (1980); diet B1 - nitrogen levels 133% higher than A1; and diet C1 - nitrogen levels 166% higher than A1. During the second phase, 12 animals divided into two groups received diet A2- with nitrogen levels according to ARC (1980), and diet B2 - nitrogen levels 200% higher than diet A2, respectively. The increase in protein equivalents was obtained by adding 20, 40 and 60 g of feed grade urea to treatments B1, C1 and B2, respectively. Semen was collected daily using an artificial vagina and analyzed twice a week for progressive motility; vigor, whirling, density, pH, concentration, sperm morphology, ejaculated volume and total sperm per ejaculate. Urea concentration was determined weekly in semen and plasma. Urea level increased in plasma and semen (p < 0.0001) during both phases but did not affect the parameters studied.Estudou-se o efeito de níveis aumentados de uréia plasmática sobre parâmetros reprodutivos de machos ovinos (Ovis aries) deslanados da raça Santa Inês, em duas fases de 60 dias cada. Durante a primeira fase, 18 animais divididos em três blocos de acordo com perímetro escrotal foram submetidos aos seguintes tratamentos: dieta A1 - com níveis de nitrogênio de acordo com ARC(1980); dieta B1 - com níveis de nitrogênio 133% maiores que dieta A1; e dieta C1 - níveis de nitrogênio 166% maiores que dieta A1. Durante a segunda fase, 12 animais divididos em dois grupos receberam as dietas: A2 - com níveis de nitrogênio de acordo com ARC (1980) e dieta B2 - níveis de nitrogênio 200% maiores que dieta A2. O aumento no equivalente protéico foi obtido com adição de 20, 40 e 60 g de uréia aos tratamentos B1, C1 e B2, respectivamente. Foi coletado sêmen diariamente com vagina artificial e duas vezes por semana foram analisados: motilidade retilínea e progressiva, vigor, turbilhonamento, densidade, pH, concentração, morfologia espermática, volume ejaculado e total de espermatozóides por ejaculado. A concentração de uréia no plasma e no sêmen foi analisada semanalmente. O aumento (p < 0,0001) de uréia no sêmen e no plasma durante ambas as fases não afetou os parâmetros estudados.Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia2000-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/bjvras/article/view/586210.1590/S1413-95962000000600007Brazilian Journal of Veterinary Research and Animal Science; Vol. 37 Núm. 6 (2000); 457-461Brazilian Journal of Veterinary Research and Animal Science; Vol. 37 No. 6 (2000); 457-461Brazilian Journal of Veterinary Research and Animal Science; v. 37 n. 6 (2000); 457-461Brazilian Journal of Veterinary Research and Animal Science; V. 37 N. 6 (2000); 457-4611678-44561413-9596reponame:Brazilian Journal of Veterinary Research and Animal Scienceinstname:Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)instacron:USPenghttps://www.revistas.usp.br/bjvras/article/view/5862/62553Cortada, Carmen Neusa MartinsLucci, Carlos de SousaGonzalez, Rodrigo Alonso ForeroValentin, RenatoMattos, Carla Balzano deinfo:eu-repo/semantics/openAccess2020-06-23T04:40:15Zoai:revistas.usp.br:article/5862Revistahttps://www.revistas.usp.br/bjvrasPUBhttps://www.revistas.usp.br/bjvras/oaibjvras@usp.br1413-95961413-9596opendoar:https://www.revistas.usp.br/bjvras/index2023-01-12T16:42:26.264576Brazilian Journal of Veterinary Research and Animal Science - Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)false |
dc.title.none.fl_str_mv |
Plasma urea levels on reproductive parameters of wool-less rams (Ovis aries, LINNAEUS, 1758) Nível plasmático de uréia sobre parâmetros reprodutivos de machos ovinos deslanados (Ovis aries, LINNAEUS, 1758) |
title |
Plasma urea levels on reproductive parameters of wool-less rams (Ovis aries, LINNAEUS, 1758) |
spellingShingle |
Plasma urea levels on reproductive parameters of wool-less rams (Ovis aries, LINNAEUS, 1758) Cortada, Carmen Neusa Martins Uréia Sêmen Reprodução Carneiros Rações Urea Semen Reproduction Rams Feed Ration |
title_short |
Plasma urea levels on reproductive parameters of wool-less rams (Ovis aries, LINNAEUS, 1758) |
title_full |
Plasma urea levels on reproductive parameters of wool-less rams (Ovis aries, LINNAEUS, 1758) |
title_fullStr |
Plasma urea levels on reproductive parameters of wool-less rams (Ovis aries, LINNAEUS, 1758) |
title_full_unstemmed |
Plasma urea levels on reproductive parameters of wool-less rams (Ovis aries, LINNAEUS, 1758) |
title_sort |
Plasma urea levels on reproductive parameters of wool-less rams (Ovis aries, LINNAEUS, 1758) |
author |
Cortada, Carmen Neusa Martins |
author_facet |
Cortada, Carmen Neusa Martins Lucci, Carlos de Sousa Gonzalez, Rodrigo Alonso Forero Valentin, Renato Mattos, Carla Balzano de |
author_role |
author |
author2 |
Lucci, Carlos de Sousa Gonzalez, Rodrigo Alonso Forero Valentin, Renato Mattos, Carla Balzano de |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Cortada, Carmen Neusa Martins Lucci, Carlos de Sousa Gonzalez, Rodrigo Alonso Forero Valentin, Renato Mattos, Carla Balzano de |
dc.subject.por.fl_str_mv |
Uréia Sêmen Reprodução Carneiros Rações Urea Semen Reproduction Rams Feed Ration |
topic |
Uréia Sêmen Reprodução Carneiros Rações Urea Semen Reproduction Rams Feed Ration |
description |
The effect of increased plasma urea levels on reproductive parameters of Santa Ines Brazilian breed rams (Ovis aries) was determined during two phases, 60 days in length each. During the first phase, 18 animals divided into three blocks according to scrotal circumference were submitted to the following treatments: diet A1- with nitrogen levels according to ARC (1980); diet B1 - nitrogen levels 133% higher than A1; and diet C1 - nitrogen levels 166% higher than A1. During the second phase, 12 animals divided into two groups received diet A2- with nitrogen levels according to ARC (1980), and diet B2 - nitrogen levels 200% higher than diet A2, respectively. The increase in protein equivalents was obtained by adding 20, 40 and 60 g of feed grade urea to treatments B1, C1 and B2, respectively. Semen was collected daily using an artificial vagina and analyzed twice a week for progressive motility; vigor, whirling, density, pH, concentration, sperm morphology, ejaculated volume and total sperm per ejaculate. Urea concentration was determined weekly in semen and plasma. Urea level increased in plasma and semen (p < 0.0001) during both phases but did not affect the parameters studied. |
publishDate |
2000 |
dc.date.none.fl_str_mv |
2000-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.revistas.usp.br/bjvras/article/view/5862 10.1590/S1413-95962000000600007 |
url |
https://www.revistas.usp.br/bjvras/article/view/5862 |
identifier_str_mv |
10.1590/S1413-95962000000600007 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/bjvras/article/view/5862/62553 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia |
publisher.none.fl_str_mv |
Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia |
dc.source.none.fl_str_mv |
Brazilian Journal of Veterinary Research and Animal Science; Vol. 37 Núm. 6 (2000); 457-461 Brazilian Journal of Veterinary Research and Animal Science; Vol. 37 No. 6 (2000); 457-461 Brazilian Journal of Veterinary Research and Animal Science; v. 37 n. 6 (2000); 457-461 Brazilian Journal of Veterinary Research and Animal Science; V. 37 N. 6 (2000); 457-461 1678-4456 1413-9596 reponame:Brazilian Journal of Veterinary Research and Animal Science instname:Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP) instacron:USP |
instname_str |
Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Brazilian Journal of Veterinary Research and Animal Science |
collection |
Brazilian Journal of Veterinary Research and Animal Science |
repository.name.fl_str_mv |
Brazilian Journal of Veterinary Research and Animal Science - Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP) |
repository.mail.fl_str_mv |
bjvras@usp.br |
_version_ |
1797051555306799104 |