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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: |
21/10/2011 |
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Data da última atualização: |
23/09/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GUIMARÃES, A. de S.; GOUVEIA, A. M. G.; CARMO, F. B. do; GOUVEIA, G. C.; SILVA, M. X.; VIEIRA, L. da S.; MOLENTO, M. B. |
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Afiliação: |
Alessandro de Sá Guimarães, Universidade Federal de Minas Gerais - UFMG - Belo Horizonte, MG, Brazil; Aurora Maria Guimarães Gouveia, UFMG; Filipe Borges do Carmo, UFMG; Gabriela Canabrava Gouveia, UFMG; Marcos Xavier Silva, UFMG; LUIZ DA SILVA VIEIRA, CNPC; Marcelo Beltrão Molento, Universidade Federal do Paraná - UFPR - Curitiba, PR, BraziL. |
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Título: |
Management practices to control gastrointestinal parasites in dairy and beef goats in Minas Gerais; Brazil. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Veterinary Parasitology, v. 76, n. 2/3, p. 265-269, Mar. 2011. |
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DOI: |
10.1016/j.vetpar.2010.10.049 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Parasitic infection is recognized worldwide as a limiting factor in the production of goats, and various control methods are used to reduce economic losses, often without considering the epidemiology of the parasites. This has led to the development of highly tolerant parasite populations and the presence of chemical residues in the beef and milk. The objective of this study was to determine the level of knowledge of goat farmers about parasitic diseases and to correlate this with the epidemiology of endoparasites and parasite control practices in goat farms in the state of Minas Gerais, Brazil. The analysis was based on a questionnaire applied by trained veterinarians. The sample was homogeneous throughout the state, covering 18.4% (157/853) of municipalities. Eighty-four dairy goat farms in 81 municipalities and 200 properties with beef goats in 76 municipalities were evaluated. The herd size per goat farm ranged from 4 to 57 (average 24) for beef herds and from 2 to 308 (average 63) for dairy farms. The majority of the beef herd production was extensive and semi-extensive (98.5%), while the dairy herds were maintained under intensive farming (98.8%). The mixed production of goats and sheep was reported by 36.5% of beef goat farmers and by 20.2% of dairy goat farmers. Among the beef goats farms on which the technological level was determined, 2.0% were categorized as having high technological level, 34.5% as medium, and 63.5% as low. Of the 84 dairy farms, 30% operated at a high, 47% at a medium, and 23% at a low technological level. The adoption of practices to reduce parasitism, such as the quarantine of animals, treatment of newly arrived animals, regular cleaning of the floor, and technical assistance, was significantly higher on dairy farms than on beef farms. Although 85.7% of dairy farmers and 83% of beef farmers medicate their animals, the treatments were performed without technical criteria, and deworming intervals ranged from 30 to 120 days or more. The average interval between treatments was significantly longer in dairy goat herds (4.8 months) than in the beef herds (3.6 months). The most commonly used drugs were macrocyclic lactones (37.7% in dairy and 39.5% in beef herds) and benzimidazoles (48.9% in dairy and 31.5% in beef herds). Goat production in Minas Gerais is still in its infancy, and even though using a control program associated with other health practices, producers still rely heavily on chemicals to get satisfactory results. MenosAbstract: Parasitic infection is recognized worldwide as a limiting factor in the production of goats, and various control methods are used to reduce economic losses, often without considering the epidemiology of the parasites. This has led to the development of highly tolerant parasite populations and the presence of chemical residues in the beef and milk. The objective of this study was to determine the level of knowledge of goat farmers about parasitic diseases and to correlate this with the epidemiology of endoparasites and parasite control practices in goat farms in the state of Minas Gerais, Brazil. The analysis was based on a questionnaire applied by trained veterinarians. The sample was homogeneous throughout the state, covering 18.4% (157/853) of municipalities. Eighty-four dairy goat farms in 81 municipalities and 200 properties with beef goats in 76 municipalities were evaluated. The herd size per goat farm ranged from 4 to 57 (average 24) for beef herds and from 2 to 308 (average 63) for dairy farms. The majority of the beef herd production was extensive and semi-extensive (98.5%), while the dairy herds were maintained under intensive farming (98.8%). The mixed production of goats and sheep was reported by 36.5% of beef goat farmers and by 20.2% of dairy goat farmers. Among the beef goats farms on which the technological level was determined, 2.0% were categorized as having high technological level, 34.5% as medium, and 63.5% as low. Of the 84 dairy farms, 30% op... Mostrar Tudo |
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Palavras-Chave: |
Gastrointestinal diseases; Nematódeo gastrintestinal. |
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Thesagro: |
Anti-helmíntico; Caprino; Doença animal; Epidemiologia; Helminto gastrintestinal; Nematóide; Parasito de animal; Verminose. |
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Thesaurus Nal: |
Animal diseases; Anthelmintics; Disease control; Endoparasites; Epidemiology; Goats; Helminthiasis. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 03705naa a2200409 a 4500
001 1903781
005 2019-09-23
008 2011 bl uuuu u00u1 u #d
024 7 $a10.1016/j.vetpar.2010.10.049$2DOI
100 1 $aGUIMARÃES, A. de S.
245 $aManagement practices to control gastrointestinal parasites in dairy and beef goats in Minas Gerais; Brazil.$h[electronic resource]
260 $c2011
520 $aAbstract: Parasitic infection is recognized worldwide as a limiting factor in the production of goats, and various control methods are used to reduce economic losses, often without considering the epidemiology of the parasites. This has led to the development of highly tolerant parasite populations and the presence of chemical residues in the beef and milk. The objective of this study was to determine the level of knowledge of goat farmers about parasitic diseases and to correlate this with the epidemiology of endoparasites and parasite control practices in goat farms in the state of Minas Gerais, Brazil. The analysis was based on a questionnaire applied by trained veterinarians. The sample was homogeneous throughout the state, covering 18.4% (157/853) of municipalities. Eighty-four dairy goat farms in 81 municipalities and 200 properties with beef goats in 76 municipalities were evaluated. The herd size per goat farm ranged from 4 to 57 (average 24) for beef herds and from 2 to 308 (average 63) for dairy farms. The majority of the beef herd production was extensive and semi-extensive (98.5%), while the dairy herds were maintained under intensive farming (98.8%). The mixed production of goats and sheep was reported by 36.5% of beef goat farmers and by 20.2% of dairy goat farmers. Among the beef goats farms on which the technological level was determined, 2.0% were categorized as having high technological level, 34.5% as medium, and 63.5% as low. Of the 84 dairy farms, 30% operated at a high, 47% at a medium, and 23% at a low technological level. The adoption of practices to reduce parasitism, such as the quarantine of animals, treatment of newly arrived animals, regular cleaning of the floor, and technical assistance, was significantly higher on dairy farms than on beef farms. Although 85.7% of dairy farmers and 83% of beef farmers medicate their animals, the treatments were performed without technical criteria, and deworming intervals ranged from 30 to 120 days or more. The average interval between treatments was significantly longer in dairy goat herds (4.8 months) than in the beef herds (3.6 months). The most commonly used drugs were macrocyclic lactones (37.7% in dairy and 39.5% in beef herds) and benzimidazoles (48.9% in dairy and 31.5% in beef herds). Goat production in Minas Gerais is still in its infancy, and even though using a control program associated with other health practices, producers still rely heavily on chemicals to get satisfactory results.
650 $aAnimal diseases
650 $aAnthelmintics
650 $aDisease control
650 $aEndoparasites
650 $aEpidemiology
650 $aGoats
650 $aHelminthiasis
650 $aAnti-helmíntico
650 $aCaprino
650 $aDoença animal
650 $aEpidemiologia
650 $aHelminto gastrintestinal
650 $aNematóide
650 $aParasito de animal
650 $aVerminose
653 $aGastrointestinal diseases
653 $aNematódeo gastrintestinal
700 1 $aGOUVEIA, A. M. G.
700 1 $aCARMO, F. B. do
700 1 $aGOUVEIA, G. C.
700 1 $aSILVA, M. X.
700 1 $aVIEIRA, L. da S.
700 1 $aMOLENTO, M. B.
773 $tVeterinary Parasitology$gv. 76, n. 2/3, p. 265-269, Mar. 2011.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
22/11/2022 |
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Data da última atualização: |
26/01/2024 |
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Autoria: |
OLIVEIRA, M. E. F. de; ANDRADE JUNIOR, V. C. de; BRITO, O. G.; AZEVEDO, S. M.; SILVA, J. C. de O.; SILVA, E. A. da; AZEVEDO, A. M. |
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Afiliação: |
MARIA ELISÂNGELA FERREIRA DE OLIVEIRA, UNIVERSIDADE FEDERAL DE LAVRAS; VALTER CARVALHO DE ANDRADE JÚNIOR, UNIVERSIDADE FEDERAL DE LAVRAS; ORLANDO GONÇALVES BRITO, UNIVERSIDADE FEDERAL DE LAVRAS; SEBASTIÃO MÁRCIO AZEVEDO, UNIVERSIDADE FEDERAL DE LAVRAS; JEFERSON CARLOS DE OLIVEIRA SILVA, UNIVERSIDADE FEDERAL DE LAVRAS; EDUARDO ALVES DA SILVA, UNIVERSIDADE FEDERAL DE LAVRAS; ALCINEI MISTICO AZEVEDO, UNIVERSIDADE FEDERAL DE MINAS GERAIS. |
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Título: |
Repeatability coefficient for the determination of the optimal number of harvests for the selection of zucchini hybrids. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, v. 57, e03016, 2022. |
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DOI: |
https://doi.org/10.1590/S1678-3921.pab2022.v57.03016 |
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Idioma: |
Inglês |
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Notas: |
Título em português: Coeficiente de repetibilidade para a determinação do número ótimo de colheitas para seleção de abobrinha-italiana. |
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Conteúdo: |
ABSTRACT - The objective of this work was to estimate the optimal number of harvests for the reliable selection of zucchini (Cucurbita pepo) hybrids through the repeatability coefficient. The experimental design was randomized complete blocks with 33 treatments (31 experimental hybrids and 2 commercial ones) and four replicates, with six plants per plot. Fifteen harvests were carried out. Seven morphoagronomic fruit characteristics were evaluated, and repeatability coefficients were estimated using four statistical methods. The repeatability coefficients ranged from low to moderate, regardless of the studied characteristic. For a high-precision selection (R²≥90%), a high number of evaluated harvests was required, especially for traits related to fruit yield, as follows: 30 to 54 harvests for selection based on total yield; and 43 to 83 harvests for commercial yield, which varied according to the statistical estimation method. The principal component analysis based on the covariance matrix required the least number of harvests for a satisfactory selection precision. Fifteen harvests are sufficient for a satisfactory selection of all evaluated characteristics, with a precision above 70%. RESUMO - O objetivo deste trabalho foi estimar o número ótimo de colheitas para a seleção confiável de híbridos de abobrinha-italiana (Cucurbita pepo) por meio do coeficiente de repetibilidade. O delineamento experimental foi em blocos ao acaso, com 33 tratamentos (31 híbridos experimentais e 2 comerciais) e quatro repetições, com seis plantas por parcela. Realizaram-se 15 colheitas. Sete características morfoagronômicas dos frutos foram avaliadas, e os coeficientes de repetibilidade foram estimados por meio de quatro métodos estatísticos. Os coeficientes de repetibilidade variaram de baixos a moderados, independentemente da característica estudada. Para uma seleção de alta precisão (R²≥90%), um elevado número de colheitas avaliadas foi necessário, especialmente para as características relacionadas à produtividade de frutos, conforme a seguir: 30 a 54 colheitas para a seleção baseada na produtividade total; e 43 a 83 colheitas para a produtividade comercial, que variou conforme o método estatístico de estimação. A análise de componentes principais baseada na matriz de covariância demandou a menor quantidade de colheitas para uma precisão satisfatória da seleção. São suficientes 15 colheitas para a seleção satisfatória de todas as características avaliadas, com precisão superior a 70%. MenosABSTRACT - The objective of this work was to estimate the optimal number of harvests for the reliable selection of zucchini (Cucurbita pepo) hybrids through the repeatability coefficient. The experimental design was randomized complete blocks with 33 treatments (31 experimental hybrids and 2 commercial ones) and four replicates, with six plants per plot. Fifteen harvests were carried out. Seven morphoagronomic fruit characteristics were evaluated, and repeatability coefficients were estimated using four statistical methods. The repeatability coefficients ranged from low to moderate, regardless of the studied characteristic. For a high-precision selection (R²≥90%), a high number of evaluated harvests was required, especially for traits related to fruit yield, as follows: 30 to 54 harvests for selection based on total yield; and 43 to 83 harvests for commercial yield, which varied according to the statistical estimation method. The principal component analysis based on the covariance matrix required the least number of harvests for a satisfactory selection precision. Fifteen harvests are sufficient for a satisfactory selection of all evaluated characteristics, with a precision above 70%. RESUMO - O objetivo deste trabalho foi estimar o número ótimo de colheitas para a seleção confiável de híbridos de abobrinha-italiana (Cucurbita pepo) por meio do coeficiente de repetibilidade. O delineamento experimental foi em blocos ao acaso, com 33 tratamentos (31 híbridos experimentais e ... Mostrar Tudo |
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Thesagro: |
Biometria; Colheita; Cucúrbita Pepo; Melhoramento Genético Vegetal; Método Estatístico; Produtividade. |
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Thesaurus NAL: |
Cucurbita pepo subsp. pepo; Harvesting; Plant breeding. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1148579/1/Repeatability-coefficient-determination-2022.pdf
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Marc: |
LEADER 03716naa a2200325 a 4500
001 2148579
005 2024-01-26
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1590/S1678-3921.pab2022.v57.03016$2DOI
100 1 $aOLIVEIRA, M. E. F. de
245 $aRepeatability coefficient for the determination of the optimal number of harvests for the selection of zucchini hybrids.$h[electronic resource]
260 $c2022
500 $aTítulo em português: Coeficiente de repetibilidade para a determinação do número ótimo de colheitas para seleção de abobrinha-italiana.
520 $aABSTRACT - The objective of this work was to estimate the optimal number of harvests for the reliable selection of zucchini (Cucurbita pepo) hybrids through the repeatability coefficient. The experimental design was randomized complete blocks with 33 treatments (31 experimental hybrids and 2 commercial ones) and four replicates, with six plants per plot. Fifteen harvests were carried out. Seven morphoagronomic fruit characteristics were evaluated, and repeatability coefficients were estimated using four statistical methods. The repeatability coefficients ranged from low to moderate, regardless of the studied characteristic. For a high-precision selection (R²≥90%), a high number of evaluated harvests was required, especially for traits related to fruit yield, as follows: 30 to 54 harvests for selection based on total yield; and 43 to 83 harvests for commercial yield, which varied according to the statistical estimation method. The principal component analysis based on the covariance matrix required the least number of harvests for a satisfactory selection precision. Fifteen harvests are sufficient for a satisfactory selection of all evaluated characteristics, with a precision above 70%. RESUMO - O objetivo deste trabalho foi estimar o número ótimo de colheitas para a seleção confiável de híbridos de abobrinha-italiana (Cucurbita pepo) por meio do coeficiente de repetibilidade. O delineamento experimental foi em blocos ao acaso, com 33 tratamentos (31 híbridos experimentais e 2 comerciais) e quatro repetições, com seis plantas por parcela. Realizaram-se 15 colheitas. Sete características morfoagronômicas dos frutos foram avaliadas, e os coeficientes de repetibilidade foram estimados por meio de quatro métodos estatísticos. Os coeficientes de repetibilidade variaram de baixos a moderados, independentemente da característica estudada. Para uma seleção de alta precisão (R²≥90%), um elevado número de colheitas avaliadas foi necessário, especialmente para as características relacionadas à produtividade de frutos, conforme a seguir: 30 a 54 colheitas para a seleção baseada na produtividade total; e 43 a 83 colheitas para a produtividade comercial, que variou conforme o método estatístico de estimação. A análise de componentes principais baseada na matriz de covariância demandou a menor quantidade de colheitas para uma precisão satisfatória da seleção. São suficientes 15 colheitas para a seleção satisfatória de todas as características avaliadas, com precisão superior a 70%.
650 $aCucurbita pepo subsp. pepo
650 $aHarvesting
650 $aPlant breeding
650 $aBiometria
650 $aColheita
650 $aCucúrbita Pepo
650 $aMelhoramento Genético Vegetal
650 $aMétodo Estatístico
650 $aProdutividade
700 1 $aANDRADE JUNIOR, V. C. de
700 1 $aBRITO, O. G.
700 1 $aAZEVEDO, S. M.
700 1 $aSILVA, J. C. de O.
700 1 $aSILVA, E. A. da
700 1 $aAZEVEDO, A. M.
773 $tPesquisa Agropecuária Brasileira$gv. 57, e03016, 2022.
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