BREEDING SOUNDNESS EVALUATION OF TWO AND THREE YEAR OLD NELORE (BOS TAURUS INDICUS) BULLS, RAISED UNDER PASTURE CONDITION
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Ciência animal brasileira (Online) |
Texto Completo: | https://revistas.ufg.br/vet/article/view/3950 |
Resumo: | Data from 583 Nelore bulls, aging from two and three years old, raised under pasture condition, were used to study andrologic traits (physical aspects: motility and vigor; and morphologic: major and total defects of the semen) and testicular measurements (scrotal circumference - SC and testicular volume - TVOL) to establish a profile of andrologic classification for fertility (BSE). The animals were divided in two groups: young bulls (N = 345), with ages from 18 to 30 months (2 years old), and adult (N = 238), with ages from 31 to 42 months (3 years old). Differences were observed (p < 0.05) for body weight, SC, physical and morphologic characteristics of the semen and TVOL in the two year olds with BSE above and below 60 points. In the three years old bulls differences were observed (p < 0.05) for SC and physical and morphologic characteristics of the semen in bulls with BSE above and below 60 points. The results suggested that body weight and SC affected the reproductive condition of young Nelore bulls. SC and seminal traits were the determining factors in the selection for a better reproductive condition, showing the importance of semen analysis when evaluating bulls raised under pasture conditions.KEY WORDS: Andrology, breeding soundness evaluation, scrotal circumference, semen, zebu. |
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BREEDING SOUNDNESS EVALUATION OF TWO AND THREE YEAR OLD NELORE (BOS TAURUS INDICUS) BULLS, RAISED UNDER PASTURE CONDITIONCLASSIFICAÇÃO ANDROLÓGICA POR PONTOS (CAP) DE TOUROS NELORE (Bos taurus indicus) DE DOIS E TRÊS ANOS DE IDADE, CRIADOS SOB PASTEJOAnimal reproductionReprodução AnimalData from 583 Nelore bulls, aging from two and three years old, raised under pasture condition, were used to study andrologic traits (physical aspects: motility and vigor; and morphologic: major and total defects of the semen) and testicular measurements (scrotal circumference - SC and testicular volume - TVOL) to establish a profile of andrologic classification for fertility (BSE). The animals were divided in two groups: young bulls (N = 345), with ages from 18 to 30 months (2 years old), and adult (N = 238), with ages from 31 to 42 months (3 years old). Differences were observed (p < 0.05) for body weight, SC, physical and morphologic characteristics of the semen and TVOL in the two year olds with BSE above and below 60 points. In the three years old bulls differences were observed (p < 0.05) for SC and physical and morphologic characteristics of the semen in bulls with BSE above and below 60 points. The results suggested that body weight and SC affected the reproductive condition of young Nelore bulls. SC and seminal traits were the determining factors in the selection for a better reproductive condition, showing the importance of semen analysis when evaluating bulls raised under pasture conditions.KEY WORDS: Andrology, breeding soundness evaluation, scrotal circumference, semen, zebu. Avaliaram-se 583 touros Nelore, de dois e três anos de idade, criados extensivamente, para estudar as características andrológicas (aspectos físicos: motilidade e vigor espermáticos; e morfológicos: defeitos espermáticos maiores e totais) e de biometria testicular (circunferência escrotal – CE – e volume testicular – VOLT), permitindo classificá-los andrologicamente por pontos e estabelecer parâmetros andrológicos. Os animais foram divididos em dois grupos: touros jovens (N = 345), com idades de 18 a 30 meses (2 anos), e adultos (N = 238), com idades de 31 a 42 meses (3 anos). Observaram-se diferenças (p < 0,05) de peso, CE, características físicas e morfológicas do sêmen e VOLT nos animais de dois anos de idade com CAP acima e abaixo de 60 pontos. Nos animais de três anos de idade observaram-se diferenças (p < 0,05) de CE e características físicas e morfológicas do sêmen nos touros com CAP acima e abaixo de 60 pontos. Esses dados sugerem que peso e CE influenciam a condição reprodutiva de touros jovens da raça Nelore e que os fatores determinantes na seleção para uma melhor condição reprodutiva foram as CE, juntamente com as características seminais, indicando a importância da análise de sêmen na avaliação de touros criados a pasto. PALAVRAS-CHAVES: Andrologia, classificação andrológica por pontos, circunferência escrotal, sêmen, zebu.Universidade Federal de Goiás2009-12-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionResearchAvaliado por paresPesquisaapplication/pdftext/htmlhttps://revistas.ufg.br/vet/article/view/395010.5216/cab.v10i4.3950Brazilian Animal Science/ Ciência Animal Brasileira; Vol. 10 No. 4 (2009); 1094-1099Ciência Animal Brasileira / Brazilian Animal Science; v. 10 n. 4 (2009); 1094-10991809-68911518-2797reponame:Ciência animal brasileira (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/vet/article/view/3950/5923https://revistas.ufg.br/vet/article/view/3950/6017Dias, Juliano CesarAndrade, Venício JoséMartins, Jorge André MatiasEmerick, Lucas LuzGonçalves, Paulo Eduardo MachadoVale Filho, Vicente Ribeiroinfo:eu-repo/semantics/openAccess2009-12-20T12:07:51Zoai:ojs.revistas.ufg.br:article/3950Revistahttps://revistas.ufg.br/vetPUBhttps://revistas.ufg.br/vet/oai||revistacab@gmail.com1809-68911518-2797opendoar:2024-05-21T19:55:12.170620Ciência animal brasileira (Online) - Universidade Federal de Goiás (UFG)true |
dc.title.none.fl_str_mv |
BREEDING SOUNDNESS EVALUATION OF TWO AND THREE YEAR OLD NELORE (BOS TAURUS INDICUS) BULLS, RAISED UNDER PASTURE CONDITION CLASSIFICAÇÃO ANDROLÓGICA POR PONTOS (CAP) DE TOUROS NELORE (Bos taurus indicus) DE DOIS E TRÊS ANOS DE IDADE, CRIADOS SOB PASTEJO |
title |
BREEDING SOUNDNESS EVALUATION OF TWO AND THREE YEAR OLD NELORE (BOS TAURUS INDICUS) BULLS, RAISED UNDER PASTURE CONDITION |
spellingShingle |
BREEDING SOUNDNESS EVALUATION OF TWO AND THREE YEAR OLD NELORE (BOS TAURUS INDICUS) BULLS, RAISED UNDER PASTURE CONDITION Dias, Juliano Cesar Animal reproduction Reprodução Animal |
title_short |
BREEDING SOUNDNESS EVALUATION OF TWO AND THREE YEAR OLD NELORE (BOS TAURUS INDICUS) BULLS, RAISED UNDER PASTURE CONDITION |
title_full |
BREEDING SOUNDNESS EVALUATION OF TWO AND THREE YEAR OLD NELORE (BOS TAURUS INDICUS) BULLS, RAISED UNDER PASTURE CONDITION |
title_fullStr |
BREEDING SOUNDNESS EVALUATION OF TWO AND THREE YEAR OLD NELORE (BOS TAURUS INDICUS) BULLS, RAISED UNDER PASTURE CONDITION |
title_full_unstemmed |
BREEDING SOUNDNESS EVALUATION OF TWO AND THREE YEAR OLD NELORE (BOS TAURUS INDICUS) BULLS, RAISED UNDER PASTURE CONDITION |
title_sort |
BREEDING SOUNDNESS EVALUATION OF TWO AND THREE YEAR OLD NELORE (BOS TAURUS INDICUS) BULLS, RAISED UNDER PASTURE CONDITION |
author |
Dias, Juliano Cesar |
author_facet |
Dias, Juliano Cesar Andrade, Venício José Martins, Jorge André Matias Emerick, Lucas Luz Gonçalves, Paulo Eduardo Machado Vale Filho, Vicente Ribeiro |
author_role |
author |
author2 |
Andrade, Venício José Martins, Jorge André Matias Emerick, Lucas Luz Gonçalves, Paulo Eduardo Machado Vale Filho, Vicente Ribeiro |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Dias, Juliano Cesar Andrade, Venício José Martins, Jorge André Matias Emerick, Lucas Luz Gonçalves, Paulo Eduardo Machado Vale Filho, Vicente Ribeiro |
dc.subject.por.fl_str_mv |
Animal reproduction Reprodução Animal |
topic |
Animal reproduction Reprodução Animal |
description |
Data from 583 Nelore bulls, aging from two and three years old, raised under pasture condition, were used to study andrologic traits (physical aspects: motility and vigor; and morphologic: major and total defects of the semen) and testicular measurements (scrotal circumference - SC and testicular volume - TVOL) to establish a profile of andrologic classification for fertility (BSE). The animals were divided in two groups: young bulls (N = 345), with ages from 18 to 30 months (2 years old), and adult (N = 238), with ages from 31 to 42 months (3 years old). Differences were observed (p < 0.05) for body weight, SC, physical and morphologic characteristics of the semen and TVOL in the two year olds with BSE above and below 60 points. In the three years old bulls differences were observed (p < 0.05) for SC and physical and morphologic characteristics of the semen in bulls with BSE above and below 60 points. The results suggested that body weight and SC affected the reproductive condition of young Nelore bulls. SC and seminal traits were the determining factors in the selection for a better reproductive condition, showing the importance of semen analysis when evaluating bulls raised under pasture conditions.KEY WORDS: Andrology, breeding soundness evaluation, scrotal circumference, semen, zebu. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-12-17 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Research Avaliado por pares Pesquisa |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistas.ufg.br/vet/article/view/3950 10.5216/cab.v10i4.3950 |
url |
https://revistas.ufg.br/vet/article/view/3950 |
identifier_str_mv |
10.5216/cab.v10i4.3950 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/vet/article/view/3950/5923 https://revistas.ufg.br/vet/article/view/3950/6017 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf text/html |
dc.publisher.none.fl_str_mv |
Universidade Federal de Goiás |
publisher.none.fl_str_mv |
Universidade Federal de Goiás |
dc.source.none.fl_str_mv |
Brazilian Animal Science/ Ciência Animal Brasileira; Vol. 10 No. 4 (2009); 1094-1099 Ciência Animal Brasileira / Brazilian Animal Science; v. 10 n. 4 (2009); 1094-1099 1809-6891 1518-2797 reponame:Ciência animal brasileira (Online) instname:Universidade Federal de Goiás (UFG) instacron:UFG |
instname_str |
Universidade Federal de Goiás (UFG) |
instacron_str |
UFG |
institution |
UFG |
reponame_str |
Ciência animal brasileira (Online) |
collection |
Ciência animal brasileira (Online) |
repository.name.fl_str_mv |
Ciência animal brasileira (Online) - Universidade Federal de Goiás (UFG) |
repository.mail.fl_str_mv |
||revistacab@gmail.com |
_version_ |
1799874784593444864 |