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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
19/04/2023 |
Actualizado : |
19/04/2023 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
BOK, M.; VEGA, C.G.; CASTELLS, M.; COLINA, R.; WIGDOROVITZ, A.; PARREÑO, V. |
Afiliación : |
MARINA BOK, INCUINTA, Virology Institute and Technology Innovations, National Institute of Agricultural Technology, Buenos Aires, 1686, Argentina; CONICET, Buenos Aires, C1425FQB, Argentina; Bioinnovo S.A, Buenos Aires, 1686, Argentina; CELINA G. VEGA, INCUINTA, Virology Institute and Technology Innovations, National Institute of Agricultural Technology, Buenos Aires, 1686, Argentina; CONICET, Buenos Aires, C1425FQB, Argentina; Bioinnovo S.A, Buenos Aires, 1686, Argentina; MATÍAS CASTELLS BAUER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Molecular Virology Laboratory, CENUR North Litoral, Salto University Centre, University of the Republic, Salto, 50000, Uruguay; RODNEY COLINA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Molecular Virology Laboratory, CENUR North Litoral, Salto University Centre, University of the Republic, Salto, 50000, Uruguay; ANDRÉS WIGDOROVITZ, INCUINTA, Virology Institute and Technology Innovations, National Institute of Agricultural Technology, Buenos Aires, 1686, Argentina; CONICET, Buenos Aires, C1425FQB, Argentina; Bioinnovo S.A, Buenos Aires, 1686, Argentina; VIVIANA PARREÑO, INCUINTA, Virology Institute and Technology Innovations, National Institute of Agricultural Technology, Buenos Aires, 1686, Argentina; CONICET, Buenos Aires, C1425FQB, Argentina; Bioinnovo S.A, Buenos Aires, 1686, Argentina. |
Título : |
Development of an IgY-based treatment to control bovine coronavirus diarrhea in dairy calves. |
Fecha de publicación : |
2023 |
Fuente / Imprenta : |
Viruses, 2023, volume 15, issue 3, article 708. OPEN ACCESS. doi: https://doi.org/10.3390/v15030708 |
ISSN : |
1999-4915 |
DOI : |
10.3390/v15030708 |
Idioma : |
Inglés |
Notas : |
Article history: Received 6 February 2023; Revised 5 March 2023; Accepted 6 March 2023; Published 9 March 2023. -- Academic Editor: Tomomi Takano. -- Correspondence author: Bok, M.; INCUINTA, Virology Institute and Technology Innovations, National Institute of Agricultural Technology, Buenos Aires 1686, Argentina; email:bok.marina@inta.gob.ar ; Parreño, V.; INCUINTA, Virology Institute and Technology Innovations, National Institute of Agricultural Technology, Buenos Aires, Argentina; email:parreno.viviana@inta.gob.ar -- This article belongs to the Special Issue Animal Coronaviruses: Infection, Prevention, and Antivirals https://www.mdpi.com/journal/viruses/special_issues/5XDFOYZ724 ) -- Funding: This work was supported by The National Institute of Agricultural Technology (INTA), ANPCyT from the Argentinean Agricultural Ministry (PICT Start Up 2010-1532), and Vetanco S.A. (CVT 20794). -- |
Contenido : |
Bovine Coronavirus (BCoV) is a major pathogen associated with neonatal calf diarrhea. Standard practice dictates that to prevent BCoV diarrhea, dams should be immunized in the last stage of pregnancy to increase BCoV-specific antibody (Ab) titers in serum and colostrum. For the prevention to be effective, calves need to suck maternal colostrum within the first six to twelve hours of life before gut closure to ensure a good level of passive immunity. The high rate of maternal Ab transfer failure resulting from this process posed the need to develop alternative local passive immunity strategies to strengthen the prevention and treatment of BCoV diarrhea. Immunoglobulin Y technology represents a promising tool to address this gap. In this study, 200 laying hens were immunized with BCoV to obtain spray-dried egg powder enriched in specific IgY Abs to BCoV on a large production scale. To ensure batch-to-batch product consistency, a potency assay was statistically validated. With a sample size of 241, the BCoV-specific IgY ELISA showed a sensitivity and specificity of 97.7% and 98.2%, respectively. ELISA IgY Abs to BCoV correlated with virus-neutralizing Ab titers (Pearson correlation, R2 = 0.92, p < 0.001). Most importantly, a pilot efficacy study in newborn calves showed a significant delay and shorter duration of BCoV-associated diarrhea and shedding in IgY-treated colostrum-deprived calves. Calves were treated with milk supplemented with egg powder (final IgY Ab titer to BCoV ELISA = 512; VN = 32) for 14 days as a passive treatment before a challenge with BCoV and were compared to calves fed milk with no supplementation. This is the first study with proof of efficacy of a product based on egg powder manufactured at a scale that successfully prevents BCoV-associated neonatal calf diarrhea. © 2023 by the authors. MenosBovine Coronavirus (BCoV) is a major pathogen associated with neonatal calf diarrhea. Standard practice dictates that to prevent BCoV diarrhea, dams should be immunized in the last stage of pregnancy to increase BCoV-specific antibody (Ab) titers in serum and colostrum. For the prevention to be effective, calves need to suck maternal colostrum within the first six to twelve hours of life before gut closure to ensure a good level of passive immunity. The high rate of maternal Ab transfer failure resulting from this process posed the need to develop alternative local passive immunity strategies to strengthen the prevention and treatment of BCoV diarrhea. Immunoglobulin Y technology represents a promising tool to address this gap. In this study, 200 laying hens were immunized with BCoV to obtain spray-dried egg powder enriched in specific IgY Abs to BCoV on a large production scale. To ensure batch-to-batch product consistency, a potency assay was statistically validated. With a sample size of 241, the BCoV-specific IgY ELISA showed a sensitivity and specificity of 97.7% and 98.2%, respectively. ELISA IgY Abs to BCoV correlated with virus-neutralizing Ab titers (Pearson correlation, R2 = 0.92, p < 0.001). Most importantly, a pilot efficacy study in newborn calves showed a significant delay and shorter duration of BCoV-associated diarrhea and shedding in IgY-treated colostrum-deprived calves. Calves were treated with milk supplemented with egg powder (final IgY Ab titer to BCoV ... Presentar Todo |
Palabras claves : |
Bovine coronavirus; Development; ELISA validation; IgY antibodies; Neonatal calf diarrhea. |
Asunto categoría : |
L20 Ecología animal |
URL : |
https://www.mdpi.com/1999-4915/15/3/708/pdf
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Marc : |
LEADER 03567naa a2200277 a 4500 001 1064043 005 2023-04-19 008 2023 bl uuuu u00u1 u #d 022 $a1999-4915 024 7 $a10.3390/v15030708$2DOI 100 1 $aBOK, M. 245 $aDevelopment of an IgY-based treatment to control bovine coronavirus diarrhea in dairy calves.$h[electronic resource] 260 $c2023 500 $aArticle history: Received 6 February 2023; Revised 5 March 2023; Accepted 6 March 2023; Published 9 March 2023. -- Academic Editor: Tomomi Takano. -- Correspondence author: Bok, M.; INCUINTA, Virology Institute and Technology Innovations, National Institute of Agricultural Technology, Buenos Aires 1686, Argentina; email:bok.marina@inta.gob.ar ; Parreño, V.; INCUINTA, Virology Institute and Technology Innovations, National Institute of Agricultural Technology, Buenos Aires, Argentina; email:parreno.viviana@inta.gob.ar -- This article belongs to the Special Issue Animal Coronaviruses: Infection, Prevention, and Antivirals https://www.mdpi.com/journal/viruses/special_issues/5XDFOYZ724 ) -- Funding: This work was supported by The National Institute of Agricultural Technology (INTA), ANPCyT from the Argentinean Agricultural Ministry (PICT Start Up 2010-1532), and Vetanco S.A. (CVT 20794). -- 520 $aBovine Coronavirus (BCoV) is a major pathogen associated with neonatal calf diarrhea. Standard practice dictates that to prevent BCoV diarrhea, dams should be immunized in the last stage of pregnancy to increase BCoV-specific antibody (Ab) titers in serum and colostrum. For the prevention to be effective, calves need to suck maternal colostrum within the first six to twelve hours of life before gut closure to ensure a good level of passive immunity. The high rate of maternal Ab transfer failure resulting from this process posed the need to develop alternative local passive immunity strategies to strengthen the prevention and treatment of BCoV diarrhea. Immunoglobulin Y technology represents a promising tool to address this gap. In this study, 200 laying hens were immunized with BCoV to obtain spray-dried egg powder enriched in specific IgY Abs to BCoV on a large production scale. To ensure batch-to-batch product consistency, a potency assay was statistically validated. With a sample size of 241, the BCoV-specific IgY ELISA showed a sensitivity and specificity of 97.7% and 98.2%, respectively. ELISA IgY Abs to BCoV correlated with virus-neutralizing Ab titers (Pearson correlation, R2 = 0.92, p < 0.001). Most importantly, a pilot efficacy study in newborn calves showed a significant delay and shorter duration of BCoV-associated diarrhea and shedding in IgY-treated colostrum-deprived calves. Calves were treated with milk supplemented with egg powder (final IgY Ab titer to BCoV ELISA = 512; VN = 32) for 14 days as a passive treatment before a challenge with BCoV and were compared to calves fed milk with no supplementation. This is the first study with proof of efficacy of a product based on egg powder manufactured at a scale that successfully prevents BCoV-associated neonatal calf diarrhea. © 2023 by the authors. 653 $aBovine coronavirus 653 $aDevelopment 653 $aELISA validation 653 $aIgY antibodies 653 $aNeonatal calf diarrhea 700 1 $aVEGA, C.G. 700 1 $aCASTELLS, M. 700 1 $aCOLINA, R. 700 1 $aWIGDOROVITZ, A. 700 1 $aPARREÑO, V. 773 $tViruses, 2023, volume 15, issue 3, article 708. OPEN ACCESS. doi: https://doi.org/10.3390/v15030708
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
02/08/2019 |
Actualizado : |
02/08/2019 |
Tipo de producción científica : |
Informes Agroclimáticos |
Autor : |
GIMÉNEZ, A.; CAL, A.; TISCORNIA, G.; SCHIAVI, C. |
Afiliación : |
AGUSTIN EDUARDO GIMÉNEZ FUREST, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ADRIAN TABARE CAL ALVAREZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GUADALUPE TISCORNIA TOSAR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CARLOS IGNACIO SCHIAVI RAMPELBERG, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Informe agroclimático 2019 - Situación a Julio. |
Fecha de publicación : |
2019 |
Fuente / Imprenta : |
Montevideo (Uruguay): INIA, 2019. |
Páginas : |
4 p. |
Serie : |
(Informe Agroclimático; 159) |
Idioma : |
Español |
Palabras claves : |
AGROCLIMA; AGROCLIMATOLOGÍA; BOLETIN AGROCLIMÁTICO; CARACTERIZACIÓN AGROCLIMÁTICA; DIRECCION VIENTO; ESTACIONES AGROMETEOROLOGICAS; ESTACIONES AUTOMATICAS; ESTACIONES INIA; ESTADO DEL TIEMPO; ESTRÉS HÍDRICO; GRAFICAS AGROCLIMATICOS; GRAS; HELIOFANOGRAFO; INFORMACION SATELITAL; INFORME AGROCLIMÁTICO 2019; INUNDACIONES; LLUVIAS DIARIAS; MAXIMA; MEDIA; MINIMA; PANEL SOLAR; PERSPECTIVAS CLIMATICAS; PLUVIOMETRO; PRECIPITACION NACIONAL; PREVENCION HELADAS; PRONOSTICO; SENSOR; SIMETRICO; TANQUE A; TERMOCUPLAS; TERMOHIDROGRAFO; VARIABLES AGROCLIMATICAS; VELETA. |
Thesagro : |
AGROCLIMATOLOGIA; CAMBIO CLIMATICO; CLIMA; CLIMATOLOGIA; ESTACIONES METEOROLOGICAS; ESTRES HIDRICO; EVAPORACION; EVAPOTRANSPIRACION; HUMEDAD; HUMEDAD RELATIVA; LLUVIA; METEOROLOGIA; PERSPECTIVAS; PLUVIOMETROS; PRONOSTICO DEL TIEMPO; SENSORES; SISTEMAS; SISTEMAS DE INFORMACION; SUELO; TEMPERATURA; TERMOMETROS. |
Asunto categoría : |
P40 Meteorología y climatología |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/13044/1/Informe-agroclimatico-INIA-GRAS-Julio-de-2019.pdf
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Marc : |
LEADER 02126nam a2200805 a 4500 001 1059974 005 2019-08-02 008 2019 bl uuuu u0uu1 u #d 100 1 $aGIMÉNEZ, A. 245 $aInforme agroclimático 2019 - Situación a Julio.$h[electronic resource] 260 $aMontevideo (Uruguay): INIA$c2019 300 $a4 p. 490 $a(Informe Agroclimático; 159) 650 $aAGROCLIMATOLOGIA 650 $aCAMBIO CLIMATICO 650 $aCLIMA 650 $aCLIMATOLOGIA 650 $aESTACIONES METEOROLOGICAS 650 $aESTRES HIDRICO 650 $aEVAPORACION 650 $aEVAPOTRANSPIRACION 650 $aHUMEDAD 650 $aHUMEDAD RELATIVA 650 $aLLUVIA 650 $aMETEOROLOGIA 650 $aPERSPECTIVAS 650 $aPLUVIOMETROS 650 $aPRONOSTICO DEL TIEMPO 650 $aSENSORES 650 $aSISTEMAS 650 $aSISTEMAS DE INFORMACION 650 $aSUELO 650 $aTEMPERATURA 650 $aTERMOMETROS 653 $aAGROCLIMA 653 $aAGROCLIMATOLOGÍA 653 $aBOLETIN AGROCLIMÁTICO 653 $aCARACTERIZACIÓN AGROCLIMÁTICA 653 $aDIRECCION VIENTO 653 $aESTACIONES AGROMETEOROLOGICAS 653 $aESTACIONES AUTOMATICAS 653 $aESTACIONES INIA 653 $aESTADO DEL TIEMPO 653 $aESTRÉS HÍDRICO 653 $aGRAFICAS AGROCLIMATICOS 653 $aGRAS 653 $aHELIOFANOGRAFO 653 $aINFORMACION SATELITAL 653 $aINFORME AGROCLIMÁTICO 2019 653 $aINUNDACIONES 653 $aLLUVIAS DIARIAS 653 $aMAXIMA 653 $aMEDIA 653 $aMINIMA 653 $aPANEL SOLAR 653 $aPERSPECTIVAS CLIMATICAS 653 $aPLUVIOMETRO 653 $aPRECIPITACION NACIONAL 653 $aPREVENCION HELADAS 653 $aPRONOSTICO 653 $aSENSOR 653 $aSIMETRICO 653 $aTANQUE A 653 $aTERMOCUPLAS 653 $aTERMOHIDROGRAFO 653 $aVARIABLES AGROCLIMATICAS 653 $aVELETA 700 1 $aCAL, A. 700 1 $aTISCORNIA, G. 700 1 $aSCHIAVI, C.
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