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| 1. |  | MENEGASSI, S.R.O.; CANOZZI, M.E.A.; PERIPOLLI, V.; BARCELLOS, J.O.J. Libido and serving skills of Zebu cattle Bulls. [Libido e habilidade física em touros zebuínos.] Semina: Ciências Agrárias, 2021, volume 42, Issue 5, p. 3057-3063. OPEN ACCESS. Doi: http://dx.doi.org/10.5433/1679-0359.2021v42n5p3057 Article history: Received: Oct. 29, 2020; Approved: May 31, 2021.| Biblioteca(s): INIA La Estanzuela. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
05/08/2021 |
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Actualizado : |
01/09/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
MENEGASSI, S.R.O.; CANOZZI, M.E.A.; PERIPOLLI, V.; BARCELLOS, J.O.J. |
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Afiliación : |
SILVIO RENATO OLIVEIRA MENEGASSI, Postdoctoral Degree Student at Universidade Federal University do Rio Grande do Sul, UFRGS, Department of Animal Science, Porto Alegre, RS, Brazil.; MARÍA EUGENIA ANDRIGHETTO CANOZZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; VANESSA PERIPOLLI, Profa at Instituto Federal Catarinense, IFC, Araquari Campus, Araquari, SC, Brazil.; JÚLIO OTÁVIO JARDIM BARCELLOS, Prof., Department of Animal Science, UFRGS, Porto Alegre, RS, Brazil. |
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Título : |
Libido and serving skills of Zebu cattle Bulls. [Libido e habilidade física em touros zebuínos.] |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Semina: Ciências Agrárias, 2021, volume 42, Issue 5, p. 3057-3063. OPEN ACCESS. Doi: http://dx.doi.org/10.5433/1679-0359.2021v42n5p3057 |
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DOI : |
10.5433/1679-0359.2021v42n5p3057 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: Oct. 29, 2020; Approved: May 31, 2021. |
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Contenido : |
Abstract:The goal of this study was to evaluate the rejection rates of Zebu bulls during behavioral assessment (libido and serving ability) and the importance of this step in bull breeding soundness evaluation (BBSE). A total of 1,534 bulls reared in the state of Rio Grande do Sul, Brazil, of Nelore (1,340), Brahman (76), Guzerá (98), and Tabapuã (210) breeds were evaluated. The evaluation consisted of four steps. Step I was the general physical examination, Step II genital tract examination, Step III semen evaluation, and Step IV behavioral assessment of libido and the ability to complete copulation. To evaluate the relationship between the binary variables of approved or rejected during different steps of the BBSE, and age groups (young and mature
bulls), chi-square tests and logistic regression were used. The general rejection rates in the BBSE were 5.64% and 15.20% for young and mature Zebu bulls, respectively. Problems with the sexual behavior (libido and/or serving ability) of bulls accounted for the rejection of 0.46% and 2.29% of young and mature Zebu bulls, respectively. The lack of libido and serving ability was shown to be an important problem concerning the total number of possible causes of Zebu bull rejection during the BBSE. This result suggests that the behavioral step should be performed regularly, rather than being complementary to the standard BBSE in Zebu cattle.
Resumo:O objetivo deste estudo foi avaliar as taxas de reprovação de touros zebuínos durante a avaliação comportamental (libido e habilidade física) e a importância desta etapa no Exame Andrológico em Touros (EAT). Foram avaliados 1.534 touros, criados no estado do Rio Grande do Sul, Brasil, das raças Nelore (1.340), Brahman (76), Guzerá (98) e Tabapuã (210). A avaliação constou de quatro etapas. Etapa I foi o exame físico geral, Etapa II o exame do trato genital, Etapa III a avaliação do sêmen, e a Etapa IV a avaliação comportamental de libido e habilidade física para completar a cópula. Para avaliar a relação entre a variável binária aprovado ou reprovado durante as diferentes etapas do exame andrológico e as faixas etárias (touros jovens e adultos), foram utilizados os testes de qui-quadrado e de regressão logística. As taxas gerais de reprovação no EAT foram de 5,64% e 15,20% para os touros Zebu jovens e adultos, respectivamente. Problemas no comportamento sexual (libido e/ou habilidade física) dos touros foram responsáveis pela
reprovação de 0,46% e 2,29% dos touros zebuínos jovens e adultos, respectivamente. A falta de libido e de habilidade física mostrou-se um problema importante em relação ao número total de possíveis causas de reprovação de touros zebuínos no EAT. Esse resultado sugere que a etapa comportamental deve ser realizada regularmente, ao invés de ser apenas complementar ao EAT padrão em bovinos zebuínos MenosAbstract:The goal of this study was to evaluate the rejection rates of Zebu bulls during behavioral assessment (libido and serving ability) and the importance of this step in bull breeding soundness evaluation (BBSE). A total of 1,534 bulls reared in the state of Rio Grande do Sul, Brazil, of Nelore (1,340), Brahman (76), Guzerá (98), and Tabapuã (210) breeds were evaluated. The evaluation consisted of four steps. Step I was the general physical examination, Step II genital tract examination, Step III semen evaluation, and Step IV behavioral assessment of libido and the ability to complete copulation. To evaluate the relationship between the binary variables of approved or rejected during different steps of the BBSE, and age groups (young and mature
bulls), chi-square tests and logistic regression were used. The general rejection rates in the BBSE were 5.64% and 15.20% for young and mature Zebu bulls, respectively. Problems with the sexual behavior (libido and/or serving ability) of bulls accounted for the rejection of 0.46% and 2.29% of young and mature Zebu bulls, respectively. The lack of libido and serving ability was shown to be an important problem concerning the total number of possible causes of Zebu bull rejection during the BBSE. This result suggests that the behavioral step should be performed regularly, rather than being complementary to the standard BBSE in Zebu cattle.
Resumo:O objetivo deste estudo foi avaliar as taxas de reprovação de touros zebuínos durante... Presentar Todo |
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Palabras claves : |
Andrological; Behavioral assessment; Bos taurus indicus; Failure rates. |
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Thesagro : |
PRODUCCIÓN ANIMAL. |
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Asunto categoría : |
-- |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16646/1/Libido-and-serving-skills-of-zebu-cattle-bulls.pdf
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Marc : |
LEADER 03788naa a2200241 a 4500
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024 7 $a10.5433/1679-0359.2021v42n5p3057$2DOI
100 1 $aMENEGASSI, S.R.O.
245 $aLibido and serving skills of Zebu cattle Bulls. [Libido e habilidade física em touros zebuínos.]$h[electronic resource]
260 $c2021
500 $aArticle history: Received: Oct. 29, 2020; Approved: May 31, 2021.
520 $aAbstract:The goal of this study was to evaluate the rejection rates of Zebu bulls during behavioral assessment (libido and serving ability) and the importance of this step in bull breeding soundness evaluation (BBSE). A total of 1,534 bulls reared in the state of Rio Grande do Sul, Brazil, of Nelore (1,340), Brahman (76), Guzerá (98), and Tabapuã (210) breeds were evaluated. The evaluation consisted of four steps. Step I was the general physical examination, Step II genital tract examination, Step III semen evaluation, and Step IV behavioral assessment of libido and the ability to complete copulation. To evaluate the relationship between the binary variables of approved or rejected during different steps of the BBSE, and age groups (young and mature bulls), chi-square tests and logistic regression were used. The general rejection rates in the BBSE were 5.64% and 15.20% for young and mature Zebu bulls, respectively. Problems with the sexual behavior (libido and/or serving ability) of bulls accounted for the rejection of 0.46% and 2.29% of young and mature Zebu bulls, respectively. The lack of libido and serving ability was shown to be an important problem concerning the total number of possible causes of Zebu bull rejection during the BBSE. This result suggests that the behavioral step should be performed regularly, rather than being complementary to the standard BBSE in Zebu cattle. Resumo:O objetivo deste estudo foi avaliar as taxas de reprovação de touros zebuínos durante a avaliação comportamental (libido e habilidade física) e a importância desta etapa no Exame Andrológico em Touros (EAT). Foram avaliados 1.534 touros, criados no estado do Rio Grande do Sul, Brasil, das raças Nelore (1.340), Brahman (76), Guzerá (98) e Tabapuã (210). A avaliação constou de quatro etapas. Etapa I foi o exame físico geral, Etapa II o exame do trato genital, Etapa III a avaliação do sêmen, e a Etapa IV a avaliação comportamental de libido e habilidade física para completar a cópula. Para avaliar a relação entre a variável binária aprovado ou reprovado durante as diferentes etapas do exame andrológico e as faixas etárias (touros jovens e adultos), foram utilizados os testes de qui-quadrado e de regressão logística. As taxas gerais de reprovação no EAT foram de 5,64% e 15,20% para os touros Zebu jovens e adultos, respectivamente. Problemas no comportamento sexual (libido e/ou habilidade física) dos touros foram responsáveis pela reprovação de 0,46% e 2,29% dos touros zebuínos jovens e adultos, respectivamente. A falta de libido e de habilidade física mostrou-se um problema importante em relação ao número total de possíveis causas de reprovação de touros zebuínos no EAT. Esse resultado sugere que a etapa comportamental deve ser realizada regularmente, ao invés de ser apenas complementar ao EAT padrão em bovinos zebuínos
650 $aPRODUCCIÓN ANIMAL
653 $aAndrological
653 $aBehavioral assessment
653 $aBos taurus indicus
653 $aFailure rates
700 1 $aCANOZZI, M.E.A.
700 1 $aPERIPOLLI, V.
700 1 $aBARCELLOS, J.O.J.
773 $tSemina: Ciências Agrárias, 2021, volume 42, Issue 5, p. 3057-3063. OPEN ACCESS. Doi: http://dx.doi.org/10.5433/1679-0359.2021v42n5p3057
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