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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha : |
03/06/2021 |
Actualizado : |
03/06/2021 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
SARAVIA, A.; MIRABALLES, C.; RIET-CORREA, F.; CASTRO-JANER, E. |
Afiliación : |
ANDERSON SARAVIA DE MELO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay./Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay.; MÓNICA CECILIA MIRABALLES FERRER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FRANKLIN RIET-CORREA AMARAL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ELEONOR CASTRO-JANER, Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay. |
Título : |
Eimeria spp. in dairy calves in Uruguay. Identification, dynamics of oocyst excretion and association with the age of calves. |
Fecha de publicación : |
2021 |
Fuente / Imprenta : |
Veterinary Parasitology: Regional Studies and Reports, 25 July 2021, Volume 25, Article number 100588. Doi: https://doi.org/10.1016/j.vprsr.2021.100588. |
DOI : |
10.1016/j.vprsr.2021.100588 |
Idioma : |
Inglés |
Notas : |
Article history: Received 12 February 2020, Revised 19 February 2021, Accepted 12 May 2021, Available online 14 May 2021. |
Contenido : |
Abstract:
Eimeria bovis, Eimeria zuernii, Eimeria ellipsoidalis, Eimeria auburnensis, Eimeria canadensis and Eimeria alabamensis were identified on different dairy farms in Uruguay. The most prevalent species were E. bovis and E. zuernii, which were mainly found in the feces of calves with diarrhea. The dynamics of oocyst excretion were evaluated via the weekly determination of oocysts per gram (OPG) values in fecal samples from 97 calves over seven months. Three groups of calves were formed according to their age in days: Group 1 (1?20 days old), Group 2 (21?40 days old) and Group 3 (41?65 days old). In Group 1, the median OPG was zero, and the maximum OPG was 1,680. In Group 2, the median OPG was between zero and 8,240, and the maximum OPG was 428,800. In Group 3, the median OPG was between zero and 220, and the maximum OPG was 16,000. For the evaluation of the relationship between OPG and age group, a proportional odds model was built. Two samples from 60 bovines evaluated in Group 2 and in Group 3 were selected. OPG was categorized as negative, moderate (lower than or equal to 4,000) or high (greater than 4,000). Calves of Group 2 (21?40 days old) were significantly (p < 0.001) more affected by eimeriosis than calves of Group 3 (41?65 days old). Considering that diarrhea in calves is a multifactorial disease, eimeriosis should be considered when evaluating the control measures for diarrhea syndrome, particularly in calves of 21?40 days of age. |
Palabras claves : |
Bovine coccidiosis; Calf rearing; Eimeria species; PLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL; PLATAFORMA DE SALUD ANIMAL. |
Asunto categoría : |
L73 Enfermedades de los animales |
Marc : |
LEADER 02476naa a2200241 a 4500 001 1062109 005 2021-06-03 008 2021 bl uuuu u00u1 u #d 024 7 $a10.1016/j.vprsr.2021.100588$2DOI 100 1 $aSARAVIA, A. 245 $aEimeria spp. in dairy calves in Uruguay. Identification, dynamics of oocyst excretion and association with the age of calves.$h[electronic resource] 260 $c2021 500 $aArticle history: Received 12 February 2020, Revised 19 February 2021, Accepted 12 May 2021, Available online 14 May 2021. 520 $aAbstract: Eimeria bovis, Eimeria zuernii, Eimeria ellipsoidalis, Eimeria auburnensis, Eimeria canadensis and Eimeria alabamensis were identified on different dairy farms in Uruguay. The most prevalent species were E. bovis and E. zuernii, which were mainly found in the feces of calves with diarrhea. The dynamics of oocyst excretion were evaluated via the weekly determination of oocysts per gram (OPG) values in fecal samples from 97 calves over seven months. Three groups of calves were formed according to their age in days: Group 1 (1?20 days old), Group 2 (21?40 days old) and Group 3 (41?65 days old). In Group 1, the median OPG was zero, and the maximum OPG was 1,680. In Group 2, the median OPG was between zero and 8,240, and the maximum OPG was 428,800. In Group 3, the median OPG was between zero and 220, and the maximum OPG was 16,000. For the evaluation of the relationship between OPG and age group, a proportional odds model was built. Two samples from 60 bovines evaluated in Group 2 and in Group 3 were selected. OPG was categorized as negative, moderate (lower than or equal to 4,000) or high (greater than 4,000). Calves of Group 2 (21?40 days old) were significantly (p < 0.001) more affected by eimeriosis than calves of Group 3 (41?65 days old). Considering that diarrhea in calves is a multifactorial disease, eimeriosis should be considered when evaluating the control measures for diarrhea syndrome, particularly in calves of 21?40 days of age. 653 $aBovine coccidiosis 653 $aCalf rearing 653 $aEimeria species 653 $aPLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL 653 $aPLATAFORMA DE SALUD ANIMAL 700 1 $aMIRABALLES, C. 700 1 $aRIET-CORREA, F. 700 1 $aCASTRO-JANER, E. 773 $tVeterinary Parasitology: Regional Studies and Reports, 25 July 2021, Volume 25, Article number 100588. Doi: https://doi.org/10.1016/j.vprsr.2021.100588.
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126. | | DORSCH, M.; CANTÓN, G.J.; DRIEMEIER, D.; ANDERSON, M.L.; MOELLER, R.B.; GIANNITTI, F. Bacterial, protozoal and viral abortions in sheep and goats in South America: A review. Small Ruminant Research, Volume 205, December 2021, 106547. Doi:https://doi.org/10.1016/j.smallrumres.2021.106547 Article history: Received 18 May 2021/ Received in revised form 11 August 2021/ Accepted 30 September 2021/ Available online 6 October 2021.Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
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139. | | VASEN, F.; SIERRA, M.; PARUELO, J.; NEGRO, C.; NOLLA, F.; LAPETINA, J.; SALVAGNO, M. Evaluation of technical production in agricultural sciences a new certification scheme in Uruguay. [La evaluación de la producción tecnológica en ciencias agrariasun nuevo esquema de certificación en Uruguay.]. [Avaliação da produção técnica nas ciências agrícolas um novo esquema de certificação no Uruguai.] Section: Social Sciences, Rural Sociology and Agrarian Economy. Agrociencia Uruguay, 2021, vol. 25, n.2, article e491. Doi: https://doi.org/10.31285/AGRO.25.491 Article history: Received 30 October 2020; Accepted 01 June 2021; Published 12 July 2021.
Editor: Marta Chiappe Hernández, Universidad de la República Montevideo, Uruguay.
Correspondence: Federico Vasen, Universidad de Buenos Aires,...Tipo: Artículos en Revistas Indexadas Nacionales | Circulación / Nivel : Nacional - -- |
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