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 | Acceso al texto completo restringido a Biblioteca INIA Tacuarembó. Por información adicional contacte bibliotb@tb.inia.org.uy. |
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha : |
08/09/2014 |
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Actualizado : |
30/09/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
MEDEROS, A.; WADDELL, L.; SÁNCHEZ, J.; KELTON, D.; PEREGRINE, A.S.; MENZIES, P.; VANLEEUWEN, J.; RAJIC, A. |
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Afiliación : |
AMERICA ESTHER MEDEROS SILVEIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
A systematic review meta analysis of primary research investigating the effect of selected alternative treatments on gastrointestinal nematodes in sheep under field conditions. |
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Fecha de publicación : |
2012 |
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Fuente / Imprenta : |
Preventive Veterinary Medicine, 2012, v. 104, p. 1-14 |
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Volumen : |
104 |
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Páginas : |
1-14 |
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DOI : |
10.1016/j.prevetmed.2011.10.012 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 18 August 2011 //Received in revised form 27 October 2011 // Accepted 30 October 2011. |
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Contenido : |
Selected alternative treatments for preventing or controlling gastrointestinal nematodes (GIN) in sheep under field conditions were evaluated using a systematic review-meta-analysis methodology. Forty-three publications reporting 51 studies (21 controlled studies (CS) and 30 challenge studies (ChS)) and 85 unique treatment comparisons were included in the review. The alternative treatment categories were nutraceuticals (28 studies), breeding for genetic resistance (12), nutritional manipulation (6), homeopathies (2), administration of copper oxide wire particles (2), and biological control (1). Random effect meta-analyses (MA) and meta-regression were performed with the natural logarithm of the difference in means (lnMD) between the control and treatment groups, for fecal egg counts per gram of wet feces (FEC), worm counts (WC) or fecal egg counts per gram of dry matter (FECDM) as the outcome. Treatment effect estimates (lnMD) were back-transformed to their count ratios (CR), a relative measure of effect for controlled versus treated groups, for presentation of results. Significant heterogeneity was observed for both CS and ChS that evaluated nutraceuticals, genetic resistance and nutrition treatments. MA of ChS that investigated nutraceuticals resulted in a significant overall CR of 1.62 (P<0.01) and 1.64 (P<0.01) for FEC and FECDM, respectively and a marginal significant CR of 1.14 (P=0.06) for WC, all favoring the treated groups. MA of CS and ChS that investigated genetic resistance resulted in a significant overall CR of 5.89 and 15.42, respectively (P<0.01), again favoring treated groups. MA of CS that investigated homeopathies with FEC as an outcome were homogenous (I(2)=0.0%) and resulted in a non-significant pooled CR of 1.61. ChS investigating copper oxide wire particle treatments and WC as an outcome, were homogenous (I(2)=0.0%) and had a marginally significant pooled CR of 1.68 (P=0.06). Publication bias was observed for ChS with WC outcomes, indicating that small size studies reporting non-significant CR, were less likely to be published than similar studies that found a significant CR. In a meta-regression, randomization (6.2%) and study size (29.2%) were the main factors contributing to the total variation when the outcome was FEC, and none of the variables contributed to between study heterogeneity. When the outcome was WC, type of treatment was the only significant covariate, explaining 6% of the heterogeneity and 38.5% of the total variation. The methodological soundness and reporting of primary research in the selected studies were low. Our results indicate that from the studied alternative treatments, nutraceuticals and use of genetically resistant sheep might be more promising for control of GINs in sheep. MenosSelected alternative treatments for preventing or controlling gastrointestinal nematodes (GIN) in sheep under field conditions were evaluated using a systematic review-meta-analysis methodology. Forty-three publications reporting 51 studies (21 controlled studies (CS) and 30 challenge studies (ChS)) and 85 unique treatment comparisons were included in the review. The alternative treatment categories were nutraceuticals (28 studies), breeding for genetic resistance (12), nutritional manipulation (6), homeopathies (2), administration of copper oxide wire particles (2), and biological control (1). Random effect meta-analyses (MA) and meta-regression were performed with the natural logarithm of the difference in means (lnMD) between the control and treatment groups, for fecal egg counts per gram of wet feces (FEC), worm counts (WC) or fecal egg counts per gram of dry matter (FECDM) as the outcome. Treatment effect estimates (lnMD) were back-transformed to their count ratios (CR), a relative measure of effect for controlled versus treated groups, for presentation of results. Significant heterogeneity was observed for both CS and ChS that evaluated nutraceuticals, genetic resistance and nutrition treatments. MA of ChS that investigated nutraceuticals resulted in a significant overall CR of 1.62 (P<0.01) and 1.64 (P<0.01) for FEC and FECDM, respectively and a marginal significant CR of 1.14 (P=0.06) for WC, all favoring the treated groups. MA of CS and ChS that investigated genetic... Presentar Todo |
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Palabras claves : |
ALTERNATIVE TREATMENTS; CONTROL METHODS; GASTROINTESTINAL NEMATODES; MEDICINA VETERINARIA; META-ANALYSIS; SHEEP; SYSTEMATIC REVIEW. |
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Thesagro : |
OVINOS. |
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Asunto categoría : |
L73 Enfermedades de los animales |
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Marc : |
LEADER 03914naa a2200349 a 4500
001 1050042
005 2019-09-30
008 2012 bl uuuu u00u1 u #d
024 7 $a10.1016/j.prevetmed.2011.10.012$2DOI
100 1 $aMEDEROS, A.
245 $aA systematic review meta analysis of primary research investigating the effect of selected alternative treatments on gastrointestinal nematodes in sheep under field conditions.
260 $c2012
300 $a1-14 104
490 $v104
500 $aArticle history: Received 18 August 2011 //Received in revised form 27 October 2011 // Accepted 30 October 2011.
520 $aSelected alternative treatments for preventing or controlling gastrointestinal nematodes (GIN) in sheep under field conditions were evaluated using a systematic review-meta-analysis methodology. Forty-three publications reporting 51 studies (21 controlled studies (CS) and 30 challenge studies (ChS)) and 85 unique treatment comparisons were included in the review. The alternative treatment categories were nutraceuticals (28 studies), breeding for genetic resistance (12), nutritional manipulation (6), homeopathies (2), administration of copper oxide wire particles (2), and biological control (1). Random effect meta-analyses (MA) and meta-regression were performed with the natural logarithm of the difference in means (lnMD) between the control and treatment groups, for fecal egg counts per gram of wet feces (FEC), worm counts (WC) or fecal egg counts per gram of dry matter (FECDM) as the outcome. Treatment effect estimates (lnMD) were back-transformed to their count ratios (CR), a relative measure of effect for controlled versus treated groups, for presentation of results. Significant heterogeneity was observed for both CS and ChS that evaluated nutraceuticals, genetic resistance and nutrition treatments. MA of ChS that investigated nutraceuticals resulted in a significant overall CR of 1.62 (P<0.01) and 1.64 (P<0.01) for FEC and FECDM, respectively and a marginal significant CR of 1.14 (P=0.06) for WC, all favoring the treated groups. MA of CS and ChS that investigated genetic resistance resulted in a significant overall CR of 5.89 and 15.42, respectively (P<0.01), again favoring treated groups. MA of CS that investigated homeopathies with FEC as an outcome were homogenous (I(2)=0.0%) and resulted in a non-significant pooled CR of 1.61. ChS investigating copper oxide wire particle treatments and WC as an outcome, were homogenous (I(2)=0.0%) and had a marginally significant pooled CR of 1.68 (P=0.06). Publication bias was observed for ChS with WC outcomes, indicating that small size studies reporting non-significant CR, were less likely to be published than similar studies that found a significant CR. In a meta-regression, randomization (6.2%) and study size (29.2%) were the main factors contributing to the total variation when the outcome was FEC, and none of the variables contributed to between study heterogeneity. When the outcome was WC, type of treatment was the only significant covariate, explaining 6% of the heterogeneity and 38.5% of the total variation. The methodological soundness and reporting of primary research in the selected studies were low. Our results indicate that from the studied alternative treatments, nutraceuticals and use of genetically resistant sheep might be more promising for control of GINs in sheep.
650 $aOVINOS
653 $aALTERNATIVE TREATMENTS
653 $aCONTROL METHODS
653 $aGASTROINTESTINAL NEMATODES
653 $aMEDICINA VETERINARIA
653 $aMETA-ANALYSIS
653 $aSHEEP
653 $aSYSTEMATIC REVIEW
700 1 $aWADDELL, L.
700 1 $aSÁNCHEZ, J.
700 1 $aKELTON, D.
700 1 $aPEREGRINE, A.S.
700 1 $aMENZIES, P.
700 1 $aVANLEEUWEN, J.
700 1 $aRAJIC, A.
773 $tPreventive Veterinary Medicine, 2012$gv. 104, p. 1-14
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Registro original : |
INIA Tacuarembó (TBO) |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha actual : |
21/02/2014 |
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Actualizado : |
28/03/2019 |
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Tipo de producción científica : |
Documentos |
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Autor : |
SAN ROMÁN, L.; DEL RÍO, A.; HORNOS, M.; RAVERA, M. |
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Título : |
Monitoreo de Thaumastocoris peregrinus, antecedentes, situación actual y resultados en Forestal Oriental. |
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Fecha de publicación : |
2009 |
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Fuente / Imprenta : |
ln: INIA TACUAREMBÓ. Seminario Técnico, 26 de noviembre, Tacuarembó, 2009. Sanidad forestal. Tacuarembó (Uruguay): INIA, 2009. |
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Páginas : |
p. 14-19 |
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Serie : |
(INIA Serie Actividades de Difusión ; 594) |
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Idioma : |
Español |
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Contenido : |
La chinche del eucalipto (Thaumastocoris peregrinus) es un insecto pequeño, de 2 a 4 mm, que ataca plantaciones de eucaliptos de diferentes especies. Se alimenta por succión (fitófago) generando cambios en la coloración (bronceado) como consecuencia de la degradación de la clorofila. Cuando la población de chinches es alta, produce una fuerte reducción en la tasa fotosintética, pudiendo llegar a darse la defoliación parcial o total del árbol. Cualquier impacto que reduzca la actividad fotosintética se traduce en una actividad fisiológica deficiente y por lo tanto es esperable que todos los procesos de crecimiento y desarrollo del árbol se alejen del óptimo, impactando directamente en el IMA (Incremento medio anual). Si bien se está investigando sobre la forma de control más adecuada, el control biológico resulta actualmente la opción más promisoria. El control químico tradicional no resultaría una opción válida a nivel de montes comerciales, debido a los altos costos, inefectividad de acción, estricciones y riesgos ambientales, y uso de principios químicos no permitidos (FSC). |
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Thesagro : |
FORESTACION; INSECTOS DANINOS. |
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Asunto categoría : |
H10 Plagas de las plantas |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/12565/1/SAD594p14-19.pdf
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Marc : |
LEADER 01808naa a2200205 a 4500
001 1025807
005 2019-03-28
008 2009 bl uuuu u00u1 u #d
100 1 $aSAN ROMÁN, L.
245 $aMonitoreo de Thaumastocoris peregrinus, antecedentes, situación actual y resultados en Forestal Oriental.
260 $c2009
300 $ap. 14-19
490 $a(INIA Serie Actividades de Difusión ; 594)
520 $aLa chinche del eucalipto (Thaumastocoris peregrinus) es un insecto pequeño, de 2 a 4 mm, que ataca plantaciones de eucaliptos de diferentes especies. Se alimenta por succión (fitófago) generando cambios en la coloración (bronceado) como consecuencia de la degradación de la clorofila. Cuando la población de chinches es alta, produce una fuerte reducción en la tasa fotosintética, pudiendo llegar a darse la defoliación parcial o total del árbol. Cualquier impacto que reduzca la actividad fotosintética se traduce en una actividad fisiológica deficiente y por lo tanto es esperable que todos los procesos de crecimiento y desarrollo del árbol se alejen del óptimo, impactando directamente en el IMA (Incremento medio anual). Si bien se está investigando sobre la forma de control más adecuada, el control biológico resulta actualmente la opción más promisoria. El control químico tradicional no resultaría una opción válida a nivel de montes comerciales, debido a los altos costos, inefectividad de acción, estricciones y riesgos ambientales, y uso de principios químicos no permitidos (FSC).
650 $aFORESTACION
650 $aINSECTOS DANINOS
700 1 $aDEL RÍO, A.
700 1 $aHORNOS, M.
700 1 $aRAVERA, M.
773 $tln: INIA TACUAREMBÓ. Seminario Técnico, 26 de noviembre, Tacuarembó, 2009. Sanidad forestal. Tacuarembó (Uruguay): INIA, 2009.
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