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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sul. Para informações adicionais entre em contato com cppsul.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sul. |
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Data corrente: |
06/01/2020 |
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Data da última atualização: |
06/01/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BURROW, H. M.; MANS, B. J.; CARDOSO, F. F.; BIRKETT, M. A.; KOTZE, A. C.; HAYES, B. J.; MAPHOLI, N.; DZAMA, K.; MARUFU, M. C.; GITHAKA, N. W.; DJIKENG, A. |
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Afiliação: |
Heather M. Burrow, University of New England; Ben J. Mans, University of South Africa; FERNANDO FLORES CARDOSO, CPPSUL; Michael A. Birkett, Rothamsted Research; Andrew C. Kotze, CSIRO; Ben J. Hayes, University of Queensland; Ntanganedzeni Mapholi, University of South Africa; Kennedy Dzama, Stellenbosch University; Munyaradzi C. Marufu, University of Pretoria; Naftaly W. Githaka, International Livestock Research Institute; Appolinaire Djikeng, University of Edinburgh. |
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Título: |
Towards a new phenotype for tick resistance in beef and dairy cattle: a review. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Animal Production Science, v. 59, n. 8, p. 1401-1427, 2019. |
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DOI: |
doi.org/10.1071/AN18487 |
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Idioma: |
Inglês |
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Conteúdo: |
About 80% of the world?s cattle are affected by ticks and tick-borne diseases, both of which cause significant production losses. Cattle host resistance to ticks is the most important factor affecting the economics of tick control, but it is largely neglected in tick-control programs due to technical difficulties and costs associated with identifying individualanimal variation in resistance. The present paper reviews the scientific literature to identify factors affecting resistance of cattle to ticks and the biological mechanisms of host tick resistance, to develop alternative phenotype(s) for tick resistance. If new cost-effective phenotype(s) can be developed and validated, then tick resistance of cattle could be genetically improved using genomic selection, and incorporated into breeding objectives to simultaneously improve cattle productive attributes and tick resistance. The phenotype(s) could also be used to improve tick control by using cattle management.Onthe basis of the present review, it is recommended that three possible phenotypes (haemolytic analysis; measures of skin hypersensitivity reactions; simplified artificial tick infestations) be further developed to determine their practical feasibility for consistently, cost-effectively and reliably measuring cattle tick resistance in thousands of individual animals in commercial and smallholder farmer herds in tropical and subtropical areas globally. During evaluation of these potential new phenotypes, additional measurements should be included to determine the possibility of developing a volatile-based resistance phenotype, to simultaneously improve cattle resistance to both ticks and biting flies. Because the current measurements of volatile chemistry do not satisfy the requirements of a simple, cost-effective phenotype for use in commercial cattle herds, consideration should also be given to inclusion of potentially simpler measures to enable indirect genetic selection for volatile-based resistance to ticks. MenosAbout 80% of the world?s cattle are affected by ticks and tick-borne diseases, both of which cause significant production losses. Cattle host resistance to ticks is the most important factor affecting the economics of tick control, but it is largely neglected in tick-control programs due to technical difficulties and costs associated with identifying individualanimal variation in resistance. The present paper reviews the scientific literature to identify factors affecting resistance of cattle to ticks and the biological mechanisms of host tick resistance, to develop alternative phenotype(s) for tick resistance. If new cost-effective phenotype(s) can be developed and validated, then tick resistance of cattle could be genetically improved using genomic selection, and incorporated into breeding objectives to simultaneously improve cattle productive attributes and tick resistance. The phenotype(s) could also be used to improve tick control by using cattle management.Onthe basis of the present review, it is recommended that three possible phenotypes (haemolytic analysis; measures of skin hypersensitivity reactions; simplified artificial tick infestations) be further developed to determine their practical feasibility for consistently, cost-effectively and reliably measuring cattle tick resistance in thousands of individual animals in commercial and smallholder farmer herds in tropical and subtropical areas globally. During evaluation of these potential new phenotypes, additional m... Mostrar Tudo |
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Thesagro: |
Bovino; Carrapato; Gado Leiteiro; Imunidade; Resistência Genética. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02870naa a2200313 a 4500
001 2118198
005 2020-01-06
008 2019 bl uuuu u00u1 u #d
024 7 $adoi.org/10.1071/AN18487$2DOI
100 1 $aBURROW, H. M.
245 $aTowards a new phenotype for tick resistance in beef and dairy cattle$ba review.$h[electronic resource]
260 $c2019
520 $aAbout 80% of the world?s cattle are affected by ticks and tick-borne diseases, both of which cause significant production losses. Cattle host resistance to ticks is the most important factor affecting the economics of tick control, but it is largely neglected in tick-control programs due to technical difficulties and costs associated with identifying individualanimal variation in resistance. The present paper reviews the scientific literature to identify factors affecting resistance of cattle to ticks and the biological mechanisms of host tick resistance, to develop alternative phenotype(s) for tick resistance. If new cost-effective phenotype(s) can be developed and validated, then tick resistance of cattle could be genetically improved using genomic selection, and incorporated into breeding objectives to simultaneously improve cattle productive attributes and tick resistance. The phenotype(s) could also be used to improve tick control by using cattle management.Onthe basis of the present review, it is recommended that three possible phenotypes (haemolytic analysis; measures of skin hypersensitivity reactions; simplified artificial tick infestations) be further developed to determine their practical feasibility for consistently, cost-effectively and reliably measuring cattle tick resistance in thousands of individual animals in commercial and smallholder farmer herds in tropical and subtropical areas globally. During evaluation of these potential new phenotypes, additional measurements should be included to determine the possibility of developing a volatile-based resistance phenotype, to simultaneously improve cattle resistance to both ticks and biting flies. Because the current measurements of volatile chemistry do not satisfy the requirements of a simple, cost-effective phenotype for use in commercial cattle herds, consideration should also be given to inclusion of potentially simpler measures to enable indirect genetic selection for volatile-based resistance to ticks.
650 $aBovino
650 $aCarrapato
650 $aGado Leiteiro
650 $aImunidade
650 $aResistência Genética
700 1 $aMANS, B. J.
700 1 $aCARDOSO, F. F.
700 1 $aBIRKETT, M. A.
700 1 $aKOTZE, A. C.
700 1 $aHAYES, B. J.
700 1 $aMAPHOLI, N.
700 1 $aDZAMA, K.
700 1 $aMARUFU, M. C.
700 1 $aGITHAKA, N. W.
700 1 $aDJIKENG, A.
773 $tAnimal Production Science$gv. 59, n. 8, p. 1401-1427, 2019.
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Registro original: |
Embrapa Pecuária Sul (CPPSUL) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
09/01/2014 |
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Data da última atualização: |
24/01/2018 |
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Autoria: |
MEDEIROS, J. G. F.; ARAUJO NETO, A. C.; MENEZES, N. P. da C.; NASCIMENTO, L. C. do. |
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Título: |
Sanidade e germinação de sementes de Clitoria fairchildiana Howard tratadas com extratos de plantas. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Pesquisa Florestal Brasileira, Colombo, v. 33, n. 76, p. 403-408, out./dez. 2013. |
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DOI: |
10.4336/2013.pfb.33.76.541 |
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Idioma: |
Português |
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Conteúdo: |
O uso de extratos de plantas com propriedades antimicrobianas é uma alternativa ecológica e promissora para substituir a proteção promovida pela aplicação de fungicidas e podem ser utilizados com outras práticas de manejo integrado de doenças. Essa pesquisa avaliou a interferência da aplicação dos extratos de melão-de-são-caetano (Momordica charantia L.) e alamanda (Allamanda blanchetti L.) sobre a micoflora e a germinação de sementes de Clitoria fairchildiana Howard. Essa espécie foi selecionada por apresentar boa produção de sementes e crescimento rápido. Os tratamentos consistiram do controle (sementes não tratadas); fungicida Dicarboximida (240 g 100 kg-1), extratos etanólicos de melão-de-são-caetano e alamanda nas concentrações de 10, 100, 500 e 1000 ppm. No teste de germinação avaliou-se a porcentagem de germinação, a primeira contagem e o índice de velocidade de germinação. O extrato de melão-de-são-caetano, na concentração de 1000 ppm, reduz significativamente a micoflora associada às sementes de C. fairchildiana, favorecendo seu desempenho germinativo. A concentração de 1000 ppm do extrato de alamanda reduz de forma eficiente o crescimento de Rhizopus stolonifer. |
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Palavras-Chave: |
Alternative control; Controle alternativo; Extratos vegetais; Patologia de sementes. |
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Thesaurus NAL: |
seed pathology; vegetable extracts. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/102675/1/SanidadeGerminacao.pdf
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Marc: |
LEADER 02032naa a2200241 a 4500
001 1975369
005 2018-01-24
008 2013 bl uuuu u00u1 u #d
024 7 $a10.4336/2013.pfb.33.76.541$2DOI
100 1 $aMEDEIROS, J. G. F.
245 $aSanidade e germinação de sementes de Clitoria fairchildiana Howard tratadas com extratos de plantas.$h[electronic resource]
260 $c2013
520 $aO uso de extratos de plantas com propriedades antimicrobianas é uma alternativa ecológica e promissora para substituir a proteção promovida pela aplicação de fungicidas e podem ser utilizados com outras práticas de manejo integrado de doenças. Essa pesquisa avaliou a interferência da aplicação dos extratos de melão-de-são-caetano (Momordica charantia L.) e alamanda (Allamanda blanchetti L.) sobre a micoflora e a germinação de sementes de Clitoria fairchildiana Howard. Essa espécie foi selecionada por apresentar boa produção de sementes e crescimento rápido. Os tratamentos consistiram do controle (sementes não tratadas); fungicida Dicarboximida (240 g 100 kg-1), extratos etanólicos de melão-de-são-caetano e alamanda nas concentrações de 10, 100, 500 e 1000 ppm. No teste de germinação avaliou-se a porcentagem de germinação, a primeira contagem e o índice de velocidade de germinação. O extrato de melão-de-são-caetano, na concentração de 1000 ppm, reduz significativamente a micoflora associada às sementes de C. fairchildiana, favorecendo seu desempenho germinativo. A concentração de 1000 ppm do extrato de alamanda reduz de forma eficiente o crescimento de Rhizopus stolonifer.
650 $aseed pathology
650 $avegetable extracts
653 $aAlternative control
653 $aControle alternativo
653 $aExtratos vegetais
653 $aPatologia de sementes
700 1 $aARAUJO NETO, A. C.
700 1 $aMENEZES, N. P. da C.
700 1 $aNASCIMENTO, L. C. do
773 $tPesquisa Florestal Brasileira, Colombo$gv. 33, n. 76, p. 403-408, out./dez. 2013.
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Registro original: |
Embrapa Florestas (CNPF) |
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Origem |
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