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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
18/09/2018 |
Data da última atualização: |
18/09/2018 |
Autoria: |
WHITLOCK, H. V.; SANGSTER, N. C.; GUNAWAN, M.; PORTER, C. J.; KELLY, J. D. |
Título: |
Trichostrongylus colubriformis and Ostertagia sp resistant to levamisole, morantel tartrate and thiabendazole: isolation into pure strain and anthelmintic titration. |
Ano de publicação: |
1980 |
Fonte/Imprenta: |
Research in Veterinary Science, v. 29, n. 1, p. 31-35, Jul. 1980. |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Strains of Trichostrongylus colubriformis (designated PF4) and Ostertagia sp (O circumcincta/O trifurcata, designated PF5), with varying degrees of resistance to levamisole, morantel tartrate and thiabendazole were isolated into pure culture. Detailed dose response studies showed that both T colubriformis and Ostertagia sp were highly resistant to levamisole and morantel with low level resistance to thiabendazole. The effective dose required to remove 80 per cent worm burdens (ED80) was calculated for each anthelmintic. For T colubriformis the ED80 for levamisole and thiabendazole were 12.6 and 40.1 mg/kg respectively. For Ostertagia sp, the ED80 for levamisole, thiabendazole and morantel were 20.4, 45.2 and 35.8 mg/kg respectively. The implications of these results are discussed with reference to alternative means of chemical control. |
Palavras-Chave: |
Drug effects; Trichostrongyloidea; Trichostrongyloidiasis; Trichostrongylosis. |
Thesaurus Nal: |
Dosage; Drug resistance; Drug therapy; Levamisole; Morantel; Parasitology; Pharmacology; Sheep diseases. |
Categoria do assunto: |
H Saúde e Patologia |
Marc: |
LEADER 01796naa a2200313 a 4500 001 2095917 005 2018-09-18 008 1980 bl uuuu u00u1 u #d 100 1 $aWHITLOCK, H. V. 245 $aTrichostrongylus colubriformis and Ostertagia sp resistant to levamisole, morantel tartrate and thiabendazole$bisolation into pure strain and anthelmintic titration. 260 $c1980 520 $aAbstract: Strains of Trichostrongylus colubriformis (designated PF4) and Ostertagia sp (O circumcincta/O trifurcata, designated PF5), with varying degrees of resistance to levamisole, morantel tartrate and thiabendazole were isolated into pure culture. Detailed dose response studies showed that both T colubriformis and Ostertagia sp were highly resistant to levamisole and morantel with low level resistance to thiabendazole. The effective dose required to remove 80 per cent worm burdens (ED80) was calculated for each anthelmintic. For T colubriformis the ED80 for levamisole and thiabendazole were 12.6 and 40.1 mg/kg respectively. For Ostertagia sp, the ED80 for levamisole, thiabendazole and morantel were 20.4, 45.2 and 35.8 mg/kg respectively. The implications of these results are discussed with reference to alternative means of chemical control. 650 $aDosage 650 $aDrug resistance 650 $aDrug therapy 650 $aLevamisole 650 $aMorantel 650 $aParasitology 650 $aPharmacology 650 $aSheep diseases 653 $aDrug effects 653 $aTrichostrongyloidea 653 $aTrichostrongyloidiasis 653 $aTrichostrongylosis 700 1 $aSANGSTER, N. C. 700 1 $aGUNAWAN, M. 700 1 $aPORTER, C. J. 700 1 $aKELLY, J. D. 773 $tResearch in Veterinary Science$gv. 29, n. 1, p. 31-35, Jul. 1980.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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Registro Completo
Biblioteca(s): |
Embrapa Florestas; Embrapa Gado de Leite. |
Data corrente: |
17/05/2017 |
Data da última atualização: |
27/01/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
SILVA, F. F. e; ZAMBRANO, M. F. B.; VARONA, L.; GLÓRIA, L. S.; LOPES, P. S.; SILVA, M. V. G. B.; ARBEX, W. A.; LÁZARO, S. F.; RESENDE, M. D. V. de; GUIMARÃES, S. E. F. |
Afiliação: |
Fabyano Fonseca e Silva, UFV/VIÇOSA; Maria Fernanda Betancur Zambrano, UFV/VIÇOSA; Luis Varona, University of Zaragoza; Leonardo Siqueira Glória, UFV/VIÇOSA; Paulo Sávio Lopes, UFV; MARCOS VINICIUS GUALBERTO B SILVA, CNPGL; WAGNER ANTONIO ARBEX, CNPGL; Sirlene Fernandes Lázaro, UFV/VIÇOSA; MARCOS DEON VILELA DE RESENDE, CNPF; Simone Eliza Facioni Guimarães, UFV/VIÇOSA. |
Título: |
Genome association study through nonlinear mixed models revealed new candidate genes for pig growth curves. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Scientia Agricola, v. 74, n. 1, 2017. |
Páginas: |
7 P. |
Idioma: |
Inglês Português |
Conteúdo: |
Genome association analyses have been successful in identifying quantitative trait
loci (QTLs) for pig body weights measured at a single age. However, when considering the whole
weight trajectories over time in the context of genome association analyses, it is important to
look at the markers that affect growth curve parameters. The easiest way to consider them is
via the two-step method, in which the growth curve parameters and marker effects are estimated
separately, thereby resulting in a reduction of the statistical power and the precision of
estimates. One efficient solution is to adopt nonlinear mixed models (NMM), which enables a joint
modeling of the individual growth curves and marker effects. Our aim was to propose a genome
association analysis for growth curves in pigs based on NMM as well as to compare it with the
traditional two-step method. In addition, we also aimed to identify the nearest candidate genes
related to significant SNP (single nucleotide polymorphism) markers. The NMM presented a
higher number of significant SNPs for adult weight (A) and maturity rate (K), and provided a direct
way to test SNP significance simultaneously for both the A and K parameters. Furthermore, all
significant SNPs from the two-step method were also reported in the NMM analysis. The ontology
of the three candidate genes (SH3BGRL2, MAPK14, and MYL9) derived from significant SNPs
(simultaneously affecting A and K) allows us to make inferences with regards to their contribution
to the pig growth process in the population studied. MenosGenome association analyses have been successful in identifying quantitative trait
loci (QTLs) for pig body weights measured at a single age. However, when considering the whole
weight trajectories over time in the context of genome association analyses, it is important to
look at the markers that affect growth curve parameters. The easiest way to consider them is
via the two-step method, in which the growth curve parameters and marker effects are estimated
separately, thereby resulting in a reduction of the statistical power and the precision of
estimates. One efficient solution is to adopt nonlinear mixed models (NMM), which enables a joint
modeling of the individual growth curves and marker effects. Our aim was to propose a genome
association analysis for growth curves in pigs based on NMM as well as to compare it with the
traditional two-step method. In addition, we also aimed to identify the nearest candidate genes
related to significant SNP (single nucleotide polymorphism) markers. The NMM presented a
higher number of significant SNPs for adult weight (A) and maturity rate (K), and provided a direct
way to test SNP significance simultaneously for both the A and K parameters. Furthermore, all
significant SNPs from the two-step method were also reported in the NMM analysis. The ontology
of the three candidate genes (SH3BGRL2, MAPK14, and MYL9) derived from significant SNPs
(simultaneously affecting A and K) allows us to make inferences with regards to their contribution
... Mostrar Tudo |
Palavras-Chave: |
Longitudinal data; SNP markers. |
Thesaurus NAL: |
body weight. |
Categoria do assunto: |
-- L Ciência Animal e Produtos de Origem Animal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/161512/1/Cnpgl-2017-SciAgric-Silva-Genome.pdf
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Marc: |
LEADER 02345naa a2200277 a 4500 001 2072227 005 2023-01-27 008 2017 bl uuuu u00u1 u #d 100 1 $aSILVA, F. F. e 245 $aGenome association study through nonlinear mixed models revealed new candidate genes for pig growth curves.$h[electronic resource] 260 $c2017 300 $a7 P. 520 $aGenome association analyses have been successful in identifying quantitative trait loci (QTLs) for pig body weights measured at a single age. However, when considering the whole weight trajectories over time in the context of genome association analyses, it is important to look at the markers that affect growth curve parameters. The easiest way to consider them is via the two-step method, in which the growth curve parameters and marker effects are estimated separately, thereby resulting in a reduction of the statistical power and the precision of estimates. One efficient solution is to adopt nonlinear mixed models (NMM), which enables a joint modeling of the individual growth curves and marker effects. Our aim was to propose a genome association analysis for growth curves in pigs based on NMM as well as to compare it with the traditional two-step method. In addition, we also aimed to identify the nearest candidate genes related to significant SNP (single nucleotide polymorphism) markers. The NMM presented a higher number of significant SNPs for adult weight (A) and maturity rate (K), and provided a direct way to test SNP significance simultaneously for both the A and K parameters. Furthermore, all significant SNPs from the two-step method were also reported in the NMM analysis. The ontology of the three candidate genes (SH3BGRL2, MAPK14, and MYL9) derived from significant SNPs (simultaneously affecting A and K) allows us to make inferences with regards to their contribution to the pig growth process in the population studied. 650 $abody weight 653 $aLongitudinal data 653 $aSNP markers 700 1 $aZAMBRANO, M. F. B. 700 1 $aVARONA, L. 700 1 $aGLÓRIA, L. S. 700 1 $aLOPES, P. S. 700 1 $aSILVA, M. V. G. B. 700 1 $aARBEX, W. A. 700 1 $aLÁZARO, S. F. 700 1 $aRESENDE, M. D. V. de 700 1 $aGUIMARÃES, S. E. F. 773 $tScientia Agricola$gv. 74, n. 1, 2017.
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