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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas; INIA Tacuarembó. |
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Fecha : |
16/11/2015 |
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Actualizado : |
15/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
MEDEROS, A.; KELTON, D.; PEREGRINE, A.S.; VANLEEUWEN, J.; FERNÁNDEZ, S.; LEBOEUF, A.; MENZIES, P.; MARTIN, R. |
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Afiliación : |
AMERICA ESTHER MEDEROS SILVEIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Evaluation of the utility of subjective clinical parameters for estimating fecal egg counts and packed cell volume in Canadian sheep flocks. |
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Fecha de publicación : |
2014 |
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Fuente / Imprenta : |
Veterinary Parasitology, 2014, v.205, p. 568?574. |
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ISSN : |
0304-4017 |
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DOI : |
10.1016/j.vetpar.2014.08.030 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 12 February 2014 / Received in revised form 8 August 2014 / Accepted 30 August 2014. |
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Contenido : |
ABSTRACT.
A study was conducted in sheep on Canadian farms to describe the relationship between packed cell volume (PCV) or fecal egg counts (FEC) and subjective clinical parameters that
may indicate the severity of parasitic gastroenteritis. Twenty-one farms in Ontario (ON) and 8 farms in Quebec (QC) were purposively selected and visited during April?May (spring)
and August (summer) 2007. At each farm visit, blood and fecal samples were collected from 10 ewes and 10 female lambs; body condition score (BCS), dag score (DS), fecal consistency score (FCS) and FAMACHA score were recorded for all sampled sheep. Packed cell volume was determined for all blood samples, and FEC were performed for all fecal samples. Summary statistics and simple correlations were performed for the parameters recorded. Two mixed models with random effects at the farm level were developed; one using PCV as the response variable and another using the natural log of eggs per gram of feces (lnEPG). Finally, the residuals from both models were correlated to the covariates in the models. The mean PCV values during the spring were 29.7% and 36.7% for lambs, and 28.8% and 31.1% for ewes, in ON and QC, respectively. During the summer, the mean PCV was 32.0% and 32.8% for lambs, and 30.1% and 29.9% for ewes, in ON and QC, respectively. The arithmetic mean FEC per gram of feces (EPG) during the spring was 3 and 2 for lambs, and 1266 and 789 for ewes, in ON and QC, respectively, whereas during summer the arithmetic mean EPG was 907 and 237 for lambs, and 458 and 246 for ewes, in ON and QC, respectively. Results from simple correlations indicated that PCV was negatively correlated with lnEPG (r = −0.255; r2 = 6.5%) and FAMACHA (r = −0.312; r2 = 9.7%), and positively correlated with BCS (r = 0.317; r2 = 10%). LnEPG was negatively correlated with BCS (r = −0.232; r2 = 5.4%) and PCV (r = −0.255; r2 = 6.5%), but positively correlated with FAMACHA (r = 0.178; r2 = 3.2%) and DS (r = 0.086; r2 = 0.7%). Results from the models indicated that PCV and lnEPG residuals were negatively correlated with FAMACHA, FCS and almost all categories of BCS and DS, although the correlations were very low. The main results from this study suggested that none of the subjective clinical parameters evaluated were highly correlated with PCV or lnEPG and therefore were not good predictors of lnEPG or PCV on the studied farms in Ontario and Quebec.
© 2014 Elsevier B.V. All rights reserved MenosABSTRACT.
A study was conducted in sheep on Canadian farms to describe the relationship between packed cell volume (PCV) or fecal egg counts (FEC) and subjective clinical parameters that
may indicate the severity of parasitic gastroenteritis. Twenty-one farms in Ontario (ON) and 8 farms in Quebec (QC) were purposively selected and visited during April?May (spring)
and August (summer) 2007. At each farm visit, blood and fecal samples were collected from 10 ewes and 10 female lambs; body condition score (BCS), dag score (DS), fecal consistency score (FCS) and FAMACHA score were recorded for all sampled sheep. Packed cell volume was determined for all blood samples, and FEC were performed for all fecal samples. Summary statistics and simple correlations were performed for the parameters recorded. Two mixed models with random effects at the farm level were developed; one using PCV as the response variable and another using the natural log of eggs per gram of feces (lnEPG). Finally, the residuals from both models were correlated to the covariates in the models. The mean PCV values during the spring were 29.7% and 36.7% for lambs, and 28.8% and 31.1% for ewes, in ON and QC, respectively. During the summer, the mean PCV was 32.0% and 32.8% for lambs, and 30.1% and 29.9% for ewes, in ON and QC, respectively. The arithmetic mean FEC per gram of feces (EPG) during the spring was 3 and 2 for lambs, and 1266 and 789 for ewes, in ON and QC, respectively, whereas during summer the arithm... Presentar Todo |
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Palabras claves : |
NEMATODOS GASTROINTESTINALES. |
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Thesagro : |
OVINOS. |
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Asunto categoría : |
--
L73 Enfermedades de los animales |
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Marc : |
LEADER 03399naa a2200265 a 4500
001 1053920
005 2019-10-15
008 2014 bl uuuu u00u1 u #d
022 $a0304-4017
024 7 $a10.1016/j.vetpar.2014.08.030$2DOI
100 1 $aMEDEROS, A.
245 $aEvaluation of the utility of subjective clinical parameters for estimating fecal egg counts and packed cell volume in Canadian sheep flocks.$h[electronic resource]
260 $c2014
500 $aArticle history: Received 12 February 2014 / Received in revised form 8 August 2014 / Accepted 30 August 2014.
520 $aABSTRACT. A study was conducted in sheep on Canadian farms to describe the relationship between packed cell volume (PCV) or fecal egg counts (FEC) and subjective clinical parameters that may indicate the severity of parasitic gastroenteritis. Twenty-one farms in Ontario (ON) and 8 farms in Quebec (QC) were purposively selected and visited during April?May (spring) and August (summer) 2007. At each farm visit, blood and fecal samples were collected from 10 ewes and 10 female lambs; body condition score (BCS), dag score (DS), fecal consistency score (FCS) and FAMACHA score were recorded for all sampled sheep. Packed cell volume was determined for all blood samples, and FEC were performed for all fecal samples. Summary statistics and simple correlations were performed for the parameters recorded. Two mixed models with random effects at the farm level were developed; one using PCV as the response variable and another using the natural log of eggs per gram of feces (lnEPG). Finally, the residuals from both models were correlated to the covariates in the models. The mean PCV values during the spring were 29.7% and 36.7% for lambs, and 28.8% and 31.1% for ewes, in ON and QC, respectively. During the summer, the mean PCV was 32.0% and 32.8% for lambs, and 30.1% and 29.9% for ewes, in ON and QC, respectively. The arithmetic mean FEC per gram of feces (EPG) during the spring was 3 and 2 for lambs, and 1266 and 789 for ewes, in ON and QC, respectively, whereas during summer the arithmetic mean EPG was 907 and 237 for lambs, and 458 and 246 for ewes, in ON and QC, respectively. Results from simple correlations indicated that PCV was negatively correlated with lnEPG (r = −0.255; r2 = 6.5%) and FAMACHA (r = −0.312; r2 = 9.7%), and positively correlated with BCS (r = 0.317; r2 = 10%). LnEPG was negatively correlated with BCS (r = −0.232; r2 = 5.4%) and PCV (r = −0.255; r2 = 6.5%), but positively correlated with FAMACHA (r = 0.178; r2 = 3.2%) and DS (r = 0.086; r2 = 0.7%). Results from the models indicated that PCV and lnEPG residuals were negatively correlated with FAMACHA, FCS and almost all categories of BCS and DS, although the correlations were very low. The main results from this study suggested that none of the subjective clinical parameters evaluated were highly correlated with PCV or lnEPG and therefore were not good predictors of lnEPG or PCV on the studied farms in Ontario and Quebec. © 2014 Elsevier B.V. All rights reserved
650 $aOVINOS
653 $aNEMATODOS GASTROINTESTINALES
700 1 $aKELTON, D.
700 1 $aPEREGRINE, A.S.
700 1 $aVANLEEUWEN, J.
700 1 $aFERNÁNDEZ, S.
700 1 $aLEBOEUF, A.
700 1 $aMENZIES, P.
700 1 $aMARTIN, R.
773 $tVeterinary Parasitology, 2014$gv.205, p. 568?574.
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INIA Las Brujas (LB) |
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| Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
24/11/2022 |
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Actualizado : |
25/11/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
CONDE, P.; VILLAMIL, J.J.; SESSA, L.; ZOPPOLO, R.; LEONI, C. |
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Afiliación : |
ANA PAULA CONDE INNAMORATO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JUAN JOSE VILLAMIL SILVA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; LUCÍA OLGA SESSA JUSID, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.; ROBERTO JOSE ZOPPOLO GOLDSCHMIDT, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CAROLINA LEONI VELAZCO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Susceptibility of pecan cultivars to Venturia effusa in Uruguay. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
International Journal of Pest Management, 2022, vol. 68, issue 4: "Uruguayan Society of Phytopathology (SUFIT): Plant protection for a sustainable agriculture", p.311-318. doi: https://doi.org/10.1080/09670874.2022.2130467 |
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ISSN : |
1366-5863 (online) |
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DOI : |
10.1080/09670874.2022.2130467 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 03 May 2022, Accepted 21 September 2022, Published online: 11 November 2022. Corresponding author: Carolina Leoni, Instituto Nacional de Investigación Agropecuaria (INIA), Sistema Vegetal Intensivo. Estación Experimental Wilson Ferreira Aldunate, INIA Las Brujas, Canelones, Uruguay. mailto: cleoni@inia.org.uy -- Funding: This research was funded by The National Institute of Agricultural Research (Instituto Nacional de Investigación Agropecuaria -INIA, Uruguay) (Project INIA FR 25). |
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Contenido : |
ABSTRACT.- Pecan scab caused by Venturia effusa is the main crop disease affecting leaves and fruits, resulting in defoliation and yield and fruit quality losses. Recently, pecan groves expanded into Uruguay, Brazil and Argentina, where the temperate-humid climate is conducive for scab development. Chemical control is difficult given the height of adult trees which exceeds 20 m. Therefore, the strategy consists on selecting tolerant cultivars accompanied by cultural management aimed at providing a good ventilation and light interception. The objective of this work was to assess the susceptibility of pecan cultivars to Venturia effusa in the Uruguayan agroclimatic conditions. Disease severity index (DSI) in fruits and leaves were determined in 18 cultivars throughout four consecutive seasons. Most of the cultivars evaluated were classified as resistant with fruit disease severity index (DSIF) below 2.0, being Elliott and Sumner the most resistant ones (DSIF < 1.5) while Mahan was susceptible (DSIF > 3.0) and Apache and Wichita were very susceptible (DSIF > 4.5). © 2022 Informa UK Limited, trading as Taylor & Francis Group |
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Palabras claves : |
ÁREA DE RECURSOS NATURALES, PRODUCCIÓN Y AMBIENTE - INIA; Carya illinoinensis; Disease severity index; Scab; Scab symptoms; Tolerant cultivar. |
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Asunto categoría : |
H20 Enfermedades de las plantas |
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Marc : |
LEADER 02663naa a2200277 a 4500
001 1063777
005 2022-11-25
008 2022 bl uuuu u00u1 u #d
022 $a1366-5863 (online)
024 7 $a10.1080/09670874.2022.2130467$2DOI
100 1 $aCONDE, P.
245 $aSusceptibility of pecan cultivars to Venturia effusa in Uruguay.$h[electronic resource]
260 $c2022
500 $aArticle history: Received 03 May 2022, Accepted 21 September 2022, Published online: 11 November 2022. Corresponding author: Carolina Leoni, Instituto Nacional de Investigación Agropecuaria (INIA), Sistema Vegetal Intensivo. Estación Experimental Wilson Ferreira Aldunate, INIA Las Brujas, Canelones, Uruguay. mailto: cleoni@inia.org.uy -- Funding: This research was funded by The National Institute of Agricultural Research (Instituto Nacional de Investigación Agropecuaria -INIA, Uruguay) (Project INIA FR 25).
520 $aABSTRACT.- Pecan scab caused by Venturia effusa is the main crop disease affecting leaves and fruits, resulting in defoliation and yield and fruit quality losses. Recently, pecan groves expanded into Uruguay, Brazil and Argentina, where the temperate-humid climate is conducive for scab development. Chemical control is difficult given the height of adult trees which exceeds 20 m. Therefore, the strategy consists on selecting tolerant cultivars accompanied by cultural management aimed at providing a good ventilation and light interception. The objective of this work was to assess the susceptibility of pecan cultivars to Venturia effusa in the Uruguayan agroclimatic conditions. Disease severity index (DSI) in fruits and leaves were determined in 18 cultivars throughout four consecutive seasons. Most of the cultivars evaluated were classified as resistant with fruit disease severity index (DSIF) below 2.0, being Elliott and Sumner the most resistant ones (DSIF < 1.5) while Mahan was susceptible (DSIF > 3.0) and Apache and Wichita were very susceptible (DSIF > 4.5). © 2022 Informa UK Limited, trading as Taylor & Francis Group
653 $aÁREA DE RECURSOS NATURALES, PRODUCCIÓN Y AMBIENTE - INIA
653 $aCarya illinoinensis
653 $aDisease severity index
653 $aScab
653 $aScab symptoms
653 $aTolerant cultivar
700 1 $aVILLAMIL, J.J.
700 1 $aSESSA, L.
700 1 $aZOPPOLO, R.
700 1 $aLEONI, C.
773 $tInternational Journal of Pest Management, 2022, vol. 68, issue 4: "Uruguayan Society of Phytopathology (SUFIT): Plant protection for a sustainable agriculture", p.311-318. doi: https://doi.org/10.1080/09670874.2022.2130467
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