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Registro Completo |
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
04/08/2022 |
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Data da última atualização: |
04/08/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LOPES, L. B.; KAMCHEN, S. G.; GOMES, F. J.; NATIVIDADE, U. A.; MAGALHÃES, L. M. D.; PIMENTA, A. de P.; ARAUJO, R. N. |
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Afiliação: |
LUCIANO BASTOS LOPES, CPAMT; SCHEILA GEIELE KAMCHEN, UFMT, Sinop-MT; FAGNER JÚNIOR GOMES, USP-ESALQ, Piracicaba-SP; ULISSES ANTÔNIO NATIVIDADE, UFMG, Belo Horizonte-MG; LUISA MOURÃO DIAS MAGALHÃES, UFMG, Belo Horizonte-MG; ANGELITA DE PAULA PIMENTA, UFMG, Belo Horizonte-MG; RICARDO NASCIMENTO ARAUJO, UFMG, Belo Horizonte-MG. |
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Título: |
Influence of silvopastoral systems on gastrointestinal nematode infection and immune response of Nellore heifers under tropical conditions. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Veterinary Parasitology, v. 309, 109765, 2022. |
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ISSN: |
0304-4017 |
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DOI: |
https://doi.org/10.1016/j.vetpar.2022.109765 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Among the strategies for integrating crops, livestock, and forestry, silvopastoral systems must be highlighted due to their inherent microclimatic conditions, mainly in tropical countries such as Brazil, where cattle are frequently subjected to unfavorable thermal conditions. However, according to some studies, shading can potentially worsen herds´ parasitism due to better microclimatic condition for the parasites. This study aimed to assess fecal egg count in Nellore heifers reared in two silvopastoral arrangements (pasture with single or triple tree rows), in a crop-livestock system, and open pasture. In the silvopastoral treatment composed of triple rows, lesser parasite burden means were found, with a peak infection in February/March and another in October. Regarding the effect of seasons over the year, there was an environmental influence on the egg counts, with higher averages during the late rainy season and the beginning of the dry season. An immunological investigation of animals from each group showed that cattle kept on the silvopastoral arrangements with either single or triple rows have significantly higher lymphocyte proliferation when stimulated with specific antigens than those kept on open pastures. Based on our results, it can be concluded that both silvopastoral systems were not considered as a risk factor for nematode egg counts in Nellore heifers. Indeed, the shadiest system promoted milder parasitism and higher immunological lymphocyte responses in animals. MenosAbstract: Among the strategies for integrating crops, livestock, and forestry, silvopastoral systems must be highlighted due to their inherent microclimatic conditions, mainly in tropical countries such as Brazil, where cattle are frequently subjected to unfavorable thermal conditions. However, according to some studies, shading can potentially worsen herds´ parasitism due to better microclimatic condition for the parasites. This study aimed to assess fecal egg count in Nellore heifers reared in two silvopastoral arrangements (pasture with single or triple tree rows), in a crop-livestock system, and open pasture. In the silvopastoral treatment composed of triple rows, lesser parasite burden means were found, with a peak infection in February/March and another in October. Regarding the effect of seasons over the year, there was an environmental influence on the egg counts, with higher averages during the late rainy season and the beginning of the dry season. An immunological investigation of animals from each group showed that cattle kept on the silvopastoral arrangements with either single or triple rows have significantly higher lymphocyte proliferation when stimulated with specific antigens than those kept on open pastures. Based on our results, it can be concluded that both silvopastoral systems were not considered as a risk factor for nematode egg counts in Nellore heifers. Indeed, the shadiest system promoted milder parasitism and higher immunological lymphocyte respons... Mostrar Tudo |
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Palavras-Chave: |
Sinop-MT. |
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Thesagro: |
Agrossilvicultura; Gado; Gado Nelore. |
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Thesaurus Nal: |
Eucalyptus; Fecal egg count; Helminths; Livestock; Nellore; Silvopastoral systems. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1145230/1/2022-cpamt-lbl-influence-silvopastoral-systems-gastrointestinal-nematoide-infection-immune-response-nellore-heifers-under-tropical-conditions.pdf
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Marc: |
LEADER 02513naa a2200337 a 4500
001 2145230
005 2022-08-04
008 2022 bl uuuu u00u1 u #d
022 $a0304-4017
024 7 $ahttps://doi.org/10.1016/j.vetpar.2022.109765$2DOI
100 1 $aLOPES, L. B.
245 $aInfluence of silvopastoral systems on gastrointestinal nematode infection and immune response of Nellore heifers under tropical conditions.$h[electronic resource]
260 $c2022
520 $aAbstract: Among the strategies for integrating crops, livestock, and forestry, silvopastoral systems must be highlighted due to their inherent microclimatic conditions, mainly in tropical countries such as Brazil, where cattle are frequently subjected to unfavorable thermal conditions. However, according to some studies, shading can potentially worsen herds´ parasitism due to better microclimatic condition for the parasites. This study aimed to assess fecal egg count in Nellore heifers reared in two silvopastoral arrangements (pasture with single or triple tree rows), in a crop-livestock system, and open pasture. In the silvopastoral treatment composed of triple rows, lesser parasite burden means were found, with a peak infection in February/March and another in October. Regarding the effect of seasons over the year, there was an environmental influence on the egg counts, with higher averages during the late rainy season and the beginning of the dry season. An immunological investigation of animals from each group showed that cattle kept on the silvopastoral arrangements with either single or triple rows have significantly higher lymphocyte proliferation when stimulated with specific antigens than those kept on open pastures. Based on our results, it can be concluded that both silvopastoral systems were not considered as a risk factor for nematode egg counts in Nellore heifers. Indeed, the shadiest system promoted milder parasitism and higher immunological lymphocyte responses in animals.
650 $aEucalyptus
650 $aFecal egg count
650 $aHelminths
650 $aLivestock
650 $aNellore
650 $aSilvopastoral systems
650 $aAgrossilvicultura
650 $aGado
650 $aGado Nelore
653 $aSinop-MT
700 1 $aKAMCHEN, S. G.
700 1 $aGOMES, F. J.
700 1 $aNATIVIDADE, U. A.
700 1 $aMAGALHÃES, L. M. D.
700 1 $aPIMENTA, A. de P.
700 1 $aARAUJO, R. N.
773 $tVeterinary Parasitology$gv. 309, 109765, 2022.
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Embrapa Agrossilvipastoril (CPAMT) |
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| 1. |  | LOPES, L. B.; KAMCHEN, S. G.; GOMES, F. J.; NATIVIDADE, U. A.; MAGALHÃES, L. M. D.; PIMENTA, A. de P.; ARAUJO, R. N. Influence of silvopastoral systems on gastrointestinal nematode infection and immune response of Nellore heifers under tropical conditions. Veterinary Parasitology, v. 309, 109765, 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Agrossilvipastoril. |
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