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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
24/01/2014 |
Data da última atualização: |
04/10/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ZAROS, L. G.; NEVES, M. R. M.; BENVENUTI, C. L.; NAVARRO, A. M. C.; SIDER, L. H.; COUTINHO, L. L.; VIEIRA, L. da S. |
Afiliação: |
Universidade Federal do Rio Grande do Norte (UFRN) - Natal, RN, Brazil; Universidade Estadual Vale do Acaraú (UVA) - Sobral, CE, Brazil; UVA - Sobral, CE, Brazil; UVA - Sobral, CE, Brazil; LUCIA HELENA SIDER, CNPC; Escola Superior de Agricultura Luiz de Queiroz (ESALQ/USP) - Piracicaba, SP - Brazil; LUIZ DA SILVA VIEIRA, CNPC. |
Título: |
Response of resistant and susceptible Brazilian Somalis crossbreed sheep naturally infected by Haemonchus contortus. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Parasitology Research, v. 113, n. 3, p. 1155-1161, Mar. 2014. |
DOI: |
10.1007/s00436-014-3753-8 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: This study was carried out to evaluate the performance of Brazilian Somalis sheep to natural infections by gastrointestinal nematodes. During 98 days, 75 weaned sheep, initially 3-4 months old, were kept on the same pasture and evaluated. Fecal and blood samples were collected for parasitological and hematological exams. After this period, the eight most resistant and the eight most susceptible animals were selected based on their individual averages of nematode fecal egg counts and were slaughtered for worm burden determination and nematodes identification. Abomasum and abomasum lymph nodes were also recovered for gene expression analysis. The animals selected as resistant had lower fecal egg counts during experimental period and smaller worm burdens than the susceptible ones (P?0.05). The genus Haemonchus, followed by Trischostrongylus and Oesophagostomum, were identified in composite cultures. Haemonchus contortus was the specie identified in the abomasum. Packed cell volume and total plasma protein means were higher in the resistant group (27.2 % and 6.1 g/dL) than in the susceptible one (22.5 % and 5.3 g/dL), respectively. Regarding cytokine gene expression, IL-4 (P?0.05) was up-regulated in the abomasum of resistant animals and TNF-? (P?0.03) and IFN-? (P?0.03) in susceptible ones. In abomasum lymph nodes, IL-4 (P?0.04) and IL-13 (P?0.05) were up-regulated in the resistant animals and IFN-? in the susceptible one (P?0.01). This work provides further evidence that, within a given animal breed, individuals have different responses when infected by gastrointestinal nematodes. Resistant animals who responded more quickly and efficiently to these infections activated a TH2-type response. MenosAbstract: This study was carried out to evaluate the performance of Brazilian Somalis sheep to natural infections by gastrointestinal nematodes. During 98 days, 75 weaned sheep, initially 3-4 months old, were kept on the same pasture and evaluated. Fecal and blood samples were collected for parasitological and hematological exams. After this period, the eight most resistant and the eight most susceptible animals were selected based on their individual averages of nematode fecal egg counts and were slaughtered for worm burden determination and nematodes identification. Abomasum and abomasum lymph nodes were also recovered for gene expression analysis. The animals selected as resistant had lower fecal egg counts during experimental period and smaller worm burdens than the susceptible ones (P?0.05). The genus Haemonchus, followed by Trischostrongylus and Oesophagostomum, were identified in composite cultures. Haemonchus contortus was the specie identified in the abomasum. Packed cell volume and total plasma protein means were higher in the resistant group (27.2 % and 6.1 g/dL) than in the susceptible one (22.5 % and 5.3 g/dL), respectively. Regarding cytokine gene expression, IL-4 (P?0.05) was up-regulated in the abomasum of resistant animals and TNF-? (P?0.03) and IFN-? (P?0.03) in susceptible ones. In abomasum lymph nodes, IL-4 (P?0.04) and IL-13 (P?0.05) were up-regulated in the resistant animals and IFN-? in the susceptible one (P?0.01). This work provides fur... Mostrar Tudo |
Palavras-Chave: |
Crossbreeding; Nematodes; Raça Somalis Brasileira; Resistance to disease. |
Thesagro: |
Haemonchus contortus; Helminto gastrintestinal; Nematóide; Ovino; Resistência. |
Thesaurus Nal: |
gastrointestinal nematodes; Sheep. |
Categoria do assunto: |
H Saúde e Patologia |
Marc: |
LEADER 02774naa a2200337 a 4500 001 1977443 005 2017-10-04 008 2014 bl uuuu u00u1 u #d 024 7 $a10.1007/s00436-014-3753-8$2DOI 100 1 $aZAROS, L. G. 245 $aResponse of resistant and susceptible Brazilian Somalis crossbreed sheep naturally infected by Haemonchus contortus.$h[electronic resource] 260 $c2014 520 $aAbstract: This study was carried out to evaluate the performance of Brazilian Somalis sheep to natural infections by gastrointestinal nematodes. During 98 days, 75 weaned sheep, initially 3-4 months old, were kept on the same pasture and evaluated. Fecal and blood samples were collected for parasitological and hematological exams. After this period, the eight most resistant and the eight most susceptible animals were selected based on their individual averages of nematode fecal egg counts and were slaughtered for worm burden determination and nematodes identification. Abomasum and abomasum lymph nodes were also recovered for gene expression analysis. The animals selected as resistant had lower fecal egg counts during experimental period and smaller worm burdens than the susceptible ones (P?<?0.05). The genus Haemonchus, followed by Trischostrongylus and Oesophagostomum, were identified in composite cultures. Haemonchus contortus was the specie identified in the abomasum. Packed cell volume and total plasma protein means were higher in the resistant group (27.2 % and 6.1 g/dL) than in the susceptible one (22.5 % and 5.3 g/dL), respectively. Regarding cytokine gene expression, IL-4 (P?<?0.05) was up-regulated in the abomasum of resistant animals and TNF-? (P?<?0.03) and IFN-? (P?<?0.03) in susceptible ones. In abomasum lymph nodes, IL-4 (P?<?0.04) and IL-13 (P?<?0.05) were up-regulated in the resistant animals and IFN-? in the susceptible one (P?<?0.01). This work provides further evidence that, within a given animal breed, individuals have different responses when infected by gastrointestinal nematodes. Resistant animals who responded more quickly and efficiently to these infections activated a TH2-type response. 650 $agastrointestinal nematodes 650 $aSheep 650 $aHaemonchus contortus 650 $aHelminto gastrintestinal 650 $aNematóide 650 $aOvino 650 $aResistência 653 $aCrossbreeding 653 $aNematodes 653 $aRaça Somalis Brasileira 653 $aResistance to disease 700 1 $aNEVES, M. R. M. 700 1 $aBENVENUTI, C. L. 700 1 $aNAVARRO, A. M. C. 700 1 $aSIDER, L. H. 700 1 $aCOUTINHO, L. L. 700 1 $aVIEIRA, L. da S. 773 $tParasitology Research$gv. 113, n. 3, p. 1155-1161, Mar. 2014.
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Embrapa Caprinos e Ovinos (CNPC) |
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Biblioteca(s): |
Embrapa Pecuária Sul. |
Data corrente: |
25/01/2023 |
Data da última atualização: |
26/01/2023 |
Tipo da produção científica: |
Documentos |
Autoria: |
YOKOO, M. J. I.; LEAL, J. J. B.; CARDOSO, F. F.; CARDOSO, L. L.; CARVALHO, H. G. de; GASPAR, E. B.; BENAVIDES, M. V.; GULIAS GOMES, C. C.; DOMINGUES, R. |
Afiliação: |
MARCOS JUN ITI YOKOO, CPPSUL; JOAL JOSE BRAZZALE LEAL, CPPSUL; FERNANDO FLORES CARDOSO, CPPSUL; LEANDRO LUNARDINI CARDOSO, BIODATA; HENRY GOMES DE CARVALHO, CPPSUL; EMANUELLE BALDO GASPAR, CPPSUL; MAGDA VIEIRA BENAVIDES, CPPSUL; CLAUDIA CRISTINA GULIAS GOMES, CPPSUL; ROBERT DOMINGUES, CPPSUL. |
Título: |
Sumário genômico para características de difícil mensuração de animais da raça Brangus : setembro de 2022. |
Edição: |
2. ed. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Bagé: Embrapa Pecuária Sul, 2022. |
Páginas: |
49 p. |
Série: |
(Embrapa Pecuária Sul. Documentos, 169). |
ISSN: |
1982-5390 |
Idioma: |
Português |
Notas: |
ODS 2. |
Conteúdo: |
Este trabalho é resultado de um projeto de pesquisa desenvolvido desde 2011 na Embrapa Pecuária Sul, com objetivo de combinar fenótipos de difíceis mensurações com informações de genealogia e marcadores moleculares amplos (SNP-polimorfismo de nucleotídeo único), considerando dezenas de milhares de marcadores distribuídos homogeneamente pelo genoma, para identificar animais mais adaptados às condições ambientais nas quais a pecuária brasileira é desenvolvida. |
Thesagro: |
Gado de Corte; Genótipo; Marcador Molecular; Melhoramento Animal; Melhoramento Genético Animal. |
Categoria do assunto: |
G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1151220/1/DT-169-online.pdf
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Marc: |
LEADER 01434nam a2200325 a 4500 001 2151220 005 2023-01-26 008 2022 bl uuuu u0uu1 u #d 022 $a1982-5390 100 1 $aYOKOO, M. J. I. 245 $aSumário genômico para características de difícil mensuração de animais da raça Brangus$bsetembro de 2022.$h[electronic resource] 250 $a2. ed. 260 $aBagé: Embrapa Pecuária Sul$c2022 300 $a49 p. 490 $a(Embrapa Pecuária Sul. Documentos, 169). 500 $aODS 2. 520 $aEste trabalho é resultado de um projeto de pesquisa desenvolvido desde 2011 na Embrapa Pecuária Sul, com objetivo de combinar fenótipos de difíceis mensurações com informações de genealogia e marcadores moleculares amplos (SNP-polimorfismo de nucleotídeo único), considerando dezenas de milhares de marcadores distribuídos homogeneamente pelo genoma, para identificar animais mais adaptados às condições ambientais nas quais a pecuária brasileira é desenvolvida. 650 $aGado de Corte 650 $aGenótipo 650 $aMarcador Molecular 650 $aMelhoramento Animal 650 $aMelhoramento Genético Animal 700 1 $aLEAL, J. J. B. 700 1 $aCARDOSO, F. F. 700 1 $aCARDOSO, L. L. 700 1 $aCARVALHO, H. G. de 700 1 $aGASPAR, E. B. 700 1 $aBENAVIDES, M. V. 700 1 $aGULIAS GOMES, C. C. 700 1 $aDOMINGUES, R.
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