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Registro Completo |
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
09/05/2019 |
Data da última atualização: |
09/01/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
TONTINI, J. F.; POLI, C. H. E. C.; HAMPELA, V. da S.; FAJARDO, N. M.; MARTINS, A. A.; MINHO, A. P.; MUIR, J. P. |
Afiliação: |
Jalise Fabíola Tontini, UFRGS; Cesar Henrique Espírito Candal Poli, UFRGS; Viviane da Silva Hampela, UFRGS; Neuza Maria Fajardo, UFRGS; Anelise Afonso Martins, UNIPAMPA; ALESSANDRO PELEGRINE MINHO, CPPSE; James Pierre Muir, Texas A&M University. |
Título: |
Dispersal and concentration of sheep gastrointestinal nematode larvae on tropical pastures. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Small Ruminant Research, v. 174, p. 62-68, 2019. |
DOI: |
10.1016/j.smallrumres.2019.03.013 |
Idioma: |
Inglês |
Conteúdo: |
Knowledge of free-living stages of endoparasite population ecology may guide their control in domesticated ruminants. Our objective was to evaluate sheep gastro-intestinal nematode (GIN) L3 distribution in tropical pasture profiles (grass and legume). Three different swards (treatments) were compared: 1) grass-only (G), 2) legume-only (L), and 3) one half of the paddock with grass and another half with legume (GL). We assessed pasture larval counts (PLC) in upper, medium and bottom strata, each representing one third of the sward height. Lamb health and performance characteristics were also evaluated. The PLC per kg of herbage dry matter (DM) tended to be 129% greater (P= 0.08) in the upper pasture profile compared to the lower stratum in GL pasture. However, the largest PLC dispersed per area (PLC/m²) was found (P < 0.01) in the lowest stratum in all pasture types. The overall PLC, averaged over strata, tended to be greatest (P= 0.09) in GL pasture (377±45 L3/kg DM) when compared to G or L pastures (178±13 L3/kg DM and 160±16 L3/kg DM, respectively). The PLC dispersion in the area (L3/m²) was not different among pasture types (47.0±4.1 L3/m²; P= 0.63). The PLC dispersion by area was negatively correlated with lamb average daily gain (ADG; r = -0.68, P<0.01) and positively correlated with precipitation (r=0.78; P < 0.01). No differences among treatments were detected for lamb performance (P= 0.19). All treatments showed high infection rates but L tended to have greater fecal egg counts (FEC; P= 0.062). The GL swards also tended to have 112 and 136% greater (P = 0.09) PLC per kilogram of DM compared to G and L, respectively. The dispersal of larvae by area showed to be an important measure to describe the pasture L3 contamination, it is highly correlated with lamb average daily gain. MenosKnowledge of free-living stages of endoparasite population ecology may guide their control in domesticated ruminants. Our objective was to evaluate sheep gastro-intestinal nematode (GIN) L3 distribution in tropical pasture profiles (grass and legume). Three different swards (treatments) were compared: 1) grass-only (G), 2) legume-only (L), and 3) one half of the paddock with grass and another half with legume (GL). We assessed pasture larval counts (PLC) in upper, medium and bottom strata, each representing one third of the sward height. Lamb health and performance characteristics were also evaluated. The PLC per kg of herbage dry matter (DM) tended to be 129% greater (P= 0.08) in the upper pasture profile compared to the lower stratum in GL pasture. However, the largest PLC dispersed per area (PLC/m²) was found (P < 0.01) in the lowest stratum in all pasture types. The overall PLC, averaged over strata, tended to be greatest (P= 0.09) in GL pasture (377±45 L3/kg DM) when compared to G or L pastures (178±13 L3/kg DM and 160±16 L3/kg DM, respectively). The PLC dispersion in the area (L3/m²) was not different among pasture types (47.0±4.1 L3/m²; P= 0.63). The PLC dispersion by area was negatively correlated with lamb average daily gain (ADG; r = -0.68, P<0.01) and positively correlated with precipitation (r=0.78; P < 0.01). No differences among treatments were detected for lamb performance (P= 0.19). All treatments showed high infection rates but L tended to have greater fecal... Mostrar Tudo |
Palavras-Chave: |
Barberpole worm; Endoparasite; Grass; L3; Legum; Pasture larval counts. |
Thesagro: |
Haemonchus Contortus; Ovino; Ruminante; Verminose. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 02728naa a2200325 a 4500 001 2108899 005 2020-01-09 008 2019 bl uuuu u00u1 u #d 024 7 $a10.1016/j.smallrumres.2019.03.013$2DOI 100 1 $aTONTINI, J. F. 245 $aDispersal and concentration of sheep gastrointestinal nematode larvae on tropical pastures.$h[electronic resource] 260 $c2019 520 $aKnowledge of free-living stages of endoparasite population ecology may guide their control in domesticated ruminants. Our objective was to evaluate sheep gastro-intestinal nematode (GIN) L3 distribution in tropical pasture profiles (grass and legume). Three different swards (treatments) were compared: 1) grass-only (G), 2) legume-only (L), and 3) one half of the paddock with grass and another half with legume (GL). We assessed pasture larval counts (PLC) in upper, medium and bottom strata, each representing one third of the sward height. Lamb health and performance characteristics were also evaluated. The PLC per kg of herbage dry matter (DM) tended to be 129% greater (P= 0.08) in the upper pasture profile compared to the lower stratum in GL pasture. However, the largest PLC dispersed per area (PLC/m²) was found (P < 0.01) in the lowest stratum in all pasture types. The overall PLC, averaged over strata, tended to be greatest (P= 0.09) in GL pasture (377±45 L3/kg DM) when compared to G or L pastures (178±13 L3/kg DM and 160±16 L3/kg DM, respectively). The PLC dispersion in the area (L3/m²) was not different among pasture types (47.0±4.1 L3/m²; P= 0.63). The PLC dispersion by area was negatively correlated with lamb average daily gain (ADG; r = -0.68, P<0.01) and positively correlated with precipitation (r=0.78; P < 0.01). No differences among treatments were detected for lamb performance (P= 0.19). All treatments showed high infection rates but L tended to have greater fecal egg counts (FEC; P= 0.062). The GL swards also tended to have 112 and 136% greater (P = 0.09) PLC per kilogram of DM compared to G and L, respectively. The dispersal of larvae by area showed to be an important measure to describe the pasture L3 contamination, it is highly correlated with lamb average daily gain. 650 $aHaemonchus Contortus 650 $aOvino 650 $aRuminante 650 $aVerminose 653 $aBarberpole worm 653 $aEndoparasite 653 $aGrass 653 $aL3 653 $aLegum 653 $aPasture larval counts 700 1 $aPOLI, C. H. E. C. 700 1 $aHAMPELA, V. da S. 700 1 $aFAJARDO, N. M. 700 1 $aMARTINS, A. A. 700 1 $aMINHO, A. P. 700 1 $aMUIR, J. P. 773 $tSmall Ruminant Research$gv. 174, p. 62-68, 2019.
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Embrapa Pecuária Sudeste (CPPSE) |
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Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
24/03/2008 |
Data da última atualização: |
14/03/2014 |
Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
Autoria: |
CARVALHO, D. T. Q.; PEREIRA, L. G. R.; MELO, N. F. de; MELO, A. M. Y. |
Afiliação: |
Dalinne Tamara Queiroz Carvalho, UNIVASF; Luiz Gustavo Ribeiro Pereira, CPATSA; NATONIEL FRANKLIN DE MELO, CPATSA; Adriana Mayumi Yano Melo, UNIVASF. |
Título: |
Simbiose micorrízica em plantas forrageiras. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
In: JORNADA DE INICIAÇÃO CIENTÌFICA DA UNIVASF, 2., Juazeiro, Petrolina, São Raimundo Nonato. Anais... Petrolina: UNIVASF, 2007. |
Idioma: |
Português |
Conteúdo: |
Esse projeto teve como objetivos: verificar a condição micorrízica em plantas forrageiras nas condições do semi-árido, avaliar a eficiência de fungos micorrízicos arbusculares em promover o crescimento vegetal e o teor nutricional de plantas de Cajanus cajan var. Petrolina, passível de utilização na alimentação animal, e conhecer o potencial dessas forragens em incrementar a propagação desses fungos no solo. |
Thesagro: |
Micorriza; Nutrição animal; Pastagem; Planta Forrageira; Simbiose. |
Thesaurus NAL: |
Animal nutrition. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPATSA/37225/1/OPB1759.pdf
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Marc: |
LEADER 01083nam a2200217 a 4500 001 1162404 005 2014-03-14 008 2007 bl uuuu u00u1 u #d 100 1 $aCARVALHO, D. T. Q. 245 $aSimbiose micorrízica em plantas forrageiras. 260 $aIn: JORNADA DE INICIAÇÃO CIENTÌFICA DA UNIVASF, 2., Juazeiro, Petrolina, São Raimundo Nonato. Anais... Petrolina: UNIVASF$c2007 520 $aEsse projeto teve como objetivos: verificar a condição micorrízica em plantas forrageiras nas condições do semi-árido, avaliar a eficiência de fungos micorrízicos arbusculares em promover o crescimento vegetal e o teor nutricional de plantas de Cajanus cajan var. Petrolina, passível de utilização na alimentação animal, e conhecer o potencial dessas forragens em incrementar a propagação desses fungos no solo. 650 $aAnimal nutrition 650 $aMicorriza 650 $aNutrição animal 650 $aPastagem 650 $aPlanta Forrageira 650 $aSimbiose 700 1 $aPEREIRA, L. G. R. 700 1 $aMELO, N. F. de 700 1 $aMELO, A. M. Y.
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