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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
06/04/2004 |
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Data da última atualização: |
03/01/2024 |
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Autoria: |
SARMENTO, J. L. R.; PIMENTA FILHO, E. C.; RIBEIRO, M. N.; ARAÚJO, C. V.; BREDA, F. C.; PIRES, A. V.; TORRES FILHO, R. de A.; TORRES, R. de A. |
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Título: |
Fatores genéticos e de ambiente sobre o intervalo de partos de cabras leiteiras no semi-árido nordestino. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Revista Brasileira de Zootecnia, v. 32, n. 4, p. 875-879, 2003. |
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DOI: |
http://dx.doi.org/10.1590/S1516-35982003000400012 |
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Idioma: |
Português |
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Conteúdo: |
Objetivou-se estudar a influência de efeitos genéticos e ambientais sobre o intervalo de partos, utilizando-se 486 registros de pariçao de cabras leiteiras mestiças criadas entre 1988 e 1996, no Estado da Paraíba. Os efeitos ambientais foram analisados pelo procedimento GLM do SAS por meio de um modelo que incluiu os efeitos fixos de grupo contemporâneo e tipo de parto, as covariáveis idade da cabra ao parto e duraçao da lactaçao e os efeitos aleatórios de bode e cabra dentro de bode e erro. 0 programa MTDFREML foi usado para estimar os parâmetros genéticos sob modelo animal, que incluia os mesmos efeitos fixos e covariáveis do modelo anterior. Como aleatórios foram considerados os efeitos genético aditivo, permanente de meio e erro. 0 intervalo de parto médio obtido foi 275,55 +- 60,96 dias. Os efeitos de grupo contemporâneo e duraçao da lactaçao influenciaram o intervalo de partos. As estimativas de herdabilidade e repetibilidade foram de baixa magnitude, 0,09 e 0,09, respectivamente, indicando que reduçoes mais rápidas nessa característica seriam obtidas por meio de melhorias no manejo. [Genetic and environmental factors affecting the kidding interval of dairy goats in the semi-arid Northeastern]. Abstract: The aims of this study were evaluate influence of the environmental and genetic effects on the kidding interval, using 486 records of kidding crossbred dairy goats obtained from 1988 to 1996 in Paraiba State. The environmental effects were analyzed by means of the procedure GLM of the SAS with a model that included as fixed factors the contemporary group and kidding type, and covariates age of goat at kidding and lactation length. Buck, goat inside of the buck and error were included as random effects. MTDFREML program was used in the analysis with an animal model containing the contemporary group and kidding type, the linear and quadratic effects of age of kidding and lactation length as fixed effects. Animal and permanent environmental and error were included as random effects. The least-square means of kidding interval was 275.55 ± 60.96 days. Kidding interval was affected by the contemporary group and lactation length effects. Estimates of heritability and repeatability were low, 0.09 and 0.09, respectively, showing that smaller kidding intervals would be obtained by better management. MenosObjetivou-se estudar a influência de efeitos genéticos e ambientais sobre o intervalo de partos, utilizando-se 486 registros de pariçao de cabras leiteiras mestiças criadas entre 1988 e 1996, no Estado da Paraíba. Os efeitos ambientais foram analisados pelo procedimento GLM do SAS por meio de um modelo que incluiu os efeitos fixos de grupo contemporâneo e tipo de parto, as covariáveis idade da cabra ao parto e duraçao da lactaçao e os efeitos aleatórios de bode e cabra dentro de bode e erro. 0 programa MTDFREML foi usado para estimar os parâmetros genéticos sob modelo animal, que incluia os mesmos efeitos fixos e covariáveis do modelo anterior. Como aleatórios foram considerados os efeitos genético aditivo, permanente de meio e erro. 0 intervalo de parto médio obtido foi 275,55 +- 60,96 dias. Os efeitos de grupo contemporâneo e duraçao da lactaçao influenciaram o intervalo de partos. As estimativas de herdabilidade e repetibilidade foram de baixa magnitude, 0,09 e 0,09, respectivamente, indicando que reduçoes mais rápidas nessa característica seriam obtidas por meio de melhorias no manejo. [Genetic and environmental factors affecting the kidding interval of dairy goats in the semi-arid Northeastern]. Abstract: The aims of this study were evaluate influence of the environmental and genetic effects on the kidding interval, using 486 records of kidding crossbred dairy goats obtained from 1988 to 1996 in Paraiba State. The environmental effects were analyzed by means of the proc... Mostrar Tudo |
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Palavras-Chave: |
Caprino leiteiro; Característica reprodutiva; Herdabilidade; Performance reprodutiva; Repetibilidade. |
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Thesagro: |
Cabra; Reprodução Animal. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 03317naa a2200301 a 4500
001 1515285
005 2024-01-03
008 2003 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1590/S1516-35982003000400012$2DOI
100 1 $aSARMENTO, J. L. R.
245 $aFatores genéticos e de ambiente sobre o intervalo de partos de cabras leiteiras no semi-árido nordestino.$h[electronic resource]
260 $c2003
520 $aObjetivou-se estudar a influência de efeitos genéticos e ambientais sobre o intervalo de partos, utilizando-se 486 registros de pariçao de cabras leiteiras mestiças criadas entre 1988 e 1996, no Estado da Paraíba. Os efeitos ambientais foram analisados pelo procedimento GLM do SAS por meio de um modelo que incluiu os efeitos fixos de grupo contemporâneo e tipo de parto, as covariáveis idade da cabra ao parto e duraçao da lactaçao e os efeitos aleatórios de bode e cabra dentro de bode e erro. 0 programa MTDFREML foi usado para estimar os parâmetros genéticos sob modelo animal, que incluia os mesmos efeitos fixos e covariáveis do modelo anterior. Como aleatórios foram considerados os efeitos genético aditivo, permanente de meio e erro. 0 intervalo de parto médio obtido foi 275,55 +- 60,96 dias. Os efeitos de grupo contemporâneo e duraçao da lactaçao influenciaram o intervalo de partos. As estimativas de herdabilidade e repetibilidade foram de baixa magnitude, 0,09 e 0,09, respectivamente, indicando que reduçoes mais rápidas nessa característica seriam obtidas por meio de melhorias no manejo. [Genetic and environmental factors affecting the kidding interval of dairy goats in the semi-arid Northeastern]. Abstract: The aims of this study were evaluate influence of the environmental and genetic effects on the kidding interval, using 486 records of kidding crossbred dairy goats obtained from 1988 to 1996 in Paraiba State. The environmental effects were analyzed by means of the procedure GLM of the SAS with a model that included as fixed factors the contemporary group and kidding type, and covariates age of goat at kidding and lactation length. Buck, goat inside of the buck and error were included as random effects. MTDFREML program was used in the analysis with an animal model containing the contemporary group and kidding type, the linear and quadratic effects of age of kidding and lactation length as fixed effects. Animal and permanent environmental and error were included as random effects. The least-square means of kidding interval was 275.55 ± 60.96 days. Kidding interval was affected by the contemporary group and lactation length effects. Estimates of heritability and repeatability were low, 0.09 and 0.09, respectively, showing that smaller kidding intervals would be obtained by better management.
650 $aCabra
650 $aReprodução Animal
653 $aCaprino leiteiro
653 $aCaracterística reprodutiva
653 $aHerdabilidade
653 $aPerformance reprodutiva
653 $aRepetibilidade
700 1 $aPIMENTA FILHO, E. C.
700 1 $aRIBEIRO, M. N.
700 1 $aARAÚJO, C. V.
700 1 $aBREDA, F. C.
700 1 $aPIRES, A. V.
700 1 $aTORRES FILHO, R. de A.
700 1 $aTORRES, R. de A.
773 $tRevista Brasileira de Zootecnia$gv. 32, n. 4, p. 875-879, 2003.
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Embrapa Caprinos e Ovinos (CNPC) |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
30/01/2017 |
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Data da última atualização: |
08/02/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
BENTIVENHA, J. P. F.; PAULA-MORAES, S. V.; BALDIN, E. L. L.; SPECHT, A.; SILVA, I. F. da; HUNT, T. E. |
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Afiliação: |
JOSE P. F. BENTIVENHA, ESALQ, USP; SILVANA V. PAULA-MORAES, UNIVERSITY OF FLORIDA; EDSON L. L. BALDIN, UNIVERSIDADE ESTADUAL DE SAO PAULO; ALEXANDRE SPECHT, CPAC; IVANA F. da SILVA, USP; THOMAS E. HUNT, UNIVERSITY OF NEBRASKA. |
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Título: |
Battle in the new world: Helicoverpa armigera versus Helicoverpa zea (Lepidoptera: Noctuidae). |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Plos One, v. 11, n. 2, e0167182, December 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The corn earworm Helicoverpa zea (Boddie) and the old world bollworm Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) are allopatric species and occur in important agricultural crops. In maize, both species tend to infest the ear. The introduction of H. armigera in Brazil has created a new scenario, where these Helicoverpa species might cohabit and interact with one another, affecting the prevalence of each species in the agroecosystem, integrated pest management, and insect resistance management. In this study, larval occurrence and proportion of these species in maize was assessed in three regions of Brazil during three crop seasons. Interaction between the species was evaluated in interspecific and intraspecific scenarios under laboratory and field conditions. Helicoverpa zea was predominant in Rio Grande do Sul and the Planaltina, DF (central Brazil). In western Bahia, H. zea was predominant in the first collection, but approximately equal in number to H armigera in the second crop season. Both species exhibit high cannibalism/predation rates, and larval size was the primary factor for larval survival in the interaction studies. Larva of H. zea had higher survival when interacting with H. armigera, indicating that H. zea has an advantage in intraguild interactions with H. armigera in maize. Overall, the results from this study indicate that maize might play a role as a source of infestation or a sink of insecticide or Bt protein unselected H. armigera populations, depending on the H. zea: H. armigera intraguild competition and adult movement in the landscape. MenosAbstract: The corn earworm Helicoverpa zea (Boddie) and the old world bollworm Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) are allopatric species and occur in important agricultural crops. In maize, both species tend to infest the ear. The introduction of H. armigera in Brazil has created a new scenario, where these Helicoverpa species might cohabit and interact with one another, affecting the prevalence of each species in the agroecosystem, integrated pest management, and insect resistance management. In this study, larval occurrence and proportion of these species in maize was assessed in three regions of Brazil during three crop seasons. Interaction between the species was evaluated in interspecific and intraspecific scenarios under laboratory and field conditions. Helicoverpa zea was predominant in Rio Grande do Sul and the Planaltina, DF (central Brazil). In western Bahia, H. zea was predominant in the first collection, but approximately equal in number to H armigera in the second crop season. Both species exhibit high cannibalism/predation rates, and larval size was the primary factor for larval survival in the interaction studies. Larva of H. zea had higher survival when interacting with H. armigera, indicating that H. zea has an advantage in intraguild interactions with H. armigera in maize. Overall, the results from this study indicate that maize might play a role as a source of infestation or a sink of insecticide or Bt protein unselected H. armigera pop... Mostrar Tudo |
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Palavras-Chave: |
Bahia; Brasil; Lagarta do milho; Ocorrencia de larvas; Planaltina; Rio grande do sul. |
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Thesagro: |
Helicoverpa Zea; Milho; Praga de Planta. |
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Thesaurus NAL: |
Helicoverpa armigera. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/154216/1/journal.pone.0167182.pdf
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Marc: |
LEADER 02455naa a2200301 a 4500
001 2062091
005 2017-02-08
008 2016 bl uuuu u00u1 u #d
100 1 $aBENTIVENHA, J. P. F.
245 $aBattle in the new world$bHelicoverpa armigera versus Helicoverpa zea (Lepidoptera: Noctuidae).$h[electronic resource]
260 $c2016
520 $aAbstract: The corn earworm Helicoverpa zea (Boddie) and the old world bollworm Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) are allopatric species and occur in important agricultural crops. In maize, both species tend to infest the ear. The introduction of H. armigera in Brazil has created a new scenario, where these Helicoverpa species might cohabit and interact with one another, affecting the prevalence of each species in the agroecosystem, integrated pest management, and insect resistance management. In this study, larval occurrence and proportion of these species in maize was assessed in three regions of Brazil during three crop seasons. Interaction between the species was evaluated in interspecific and intraspecific scenarios under laboratory and field conditions. Helicoverpa zea was predominant in Rio Grande do Sul and the Planaltina, DF (central Brazil). In western Bahia, H. zea was predominant in the first collection, but approximately equal in number to H armigera in the second crop season. Both species exhibit high cannibalism/predation rates, and larval size was the primary factor for larval survival in the interaction studies. Larva of H. zea had higher survival when interacting with H. armigera, indicating that H. zea has an advantage in intraguild interactions with H. armigera in maize. Overall, the results from this study indicate that maize might play a role as a source of infestation or a sink of insecticide or Bt protein unselected H. armigera populations, depending on the H. zea: H. armigera intraguild competition and adult movement in the landscape.
650 $aHelicoverpa armigera
650 $aHelicoverpa Zea
650 $aMilho
650 $aPraga de Planta
653 $aBahia
653 $aBrasil
653 $aLagarta do milho
653 $aOcorrencia de larvas
653 $aPlanaltina
653 $aRio grande do sul
700 1 $aPAULA-MORAES, S. V.
700 1 $aBALDIN, E. L. L.
700 1 $aSPECHT, A.
700 1 $aSILVA, I. F. da
700 1 $aHUNT, T. E.
773 $tPlos One$gv. 11, n. 2, e0167182, December 2016.
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