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Cotylophoron panamensis (Digenea: Paramphistomidae) en bovinos del Meta y del Guaviare, Colombia

Authors: López Martínez, Jessika; Velásquez Trujillo, Luz Elena;

Cotylophoron panamensis (Digenea: Paramphistomidae) en bovinos del Meta y del Guaviare, Colombia

Abstract

RESUMEN: Entre los Paramphistomidae (Trematoda: Digenea) hay especies que parasitan el sistema digestivo de rumiantes disminuyendo su producción láctea y cárnica. En Colombia se ha registrado la paramphistomosis bovina en: 1) la región lechera altoandina de Antioquia donde se describe a Cotylophoron cotylophorum como el agente causal; y 2) en bovinos de producción cárnica de las Sabanas en el cálido piedemonte llanero y en los Llanos Orientales nacionales, donde se señala a varias especies de paramfistómidos, de los cuales falta la descripción que respalde el estatus taxonómico específico asignado en las publicaciones. Por lo tanto, el hallazgo de digeneos en bovinos sacrificados en el beneficiadero de Guamal, Meta, (Colombia) constituyó una oportunidad para iniciar con la descripción de los Paramphistomidae de esta región del país. Entre 2006 y 2008 se extrajeron 715 trematodos adultos del rumen de 32 bovinos provenientes de los departamentos del Meta y del Guaviare. El análisis morfológico muestra las siguientes características de la familia Paramphistomidae: el canal de Laurer atraviesa la vesícula excretora y se abre debajo del poro excretor; acetábulo pequeño del tipo Cotylophoron, la faringe tipo Calicophoron; ventosa genital sin esfínter; ausencia de bulbo esofágico y las vitelarias laterales y dorsales confluyendo en el extremo posterior del cuerpo, debajo del acetábulo, como en Cotylophoron panamensis. Con este estudio se ratifica la paramfistomosis bovina en el departamento del Meta y se registra por primera vez a Cotylophoron panamensis en bovinos del departamento del Guaviare, ampliando su rango de distribución geográfica en Colombia.

ABSTRACT: Some species of Paramphistomidae (Trematoda: Digenea) that parasitize the digestive system of ruminants can cause decreases in milk and meat production. In Colombia, paramphistomosis cattle have been recorded from 1) dairy farms at high altitudes in the mountains of Antioquia (northwestern Colombia) where Cotylophoron cotylophorum was described as the causative agent; and 2) from lowland savannas in eastern Colombia, which has been attributed to several species of Paramphistomidae but with records remaining to be confirmed. Therefore, the discovery of digenea of cattle slaughtered in Guamal, Meta (eastern Colombia), was an opportunity to start with the description of the Paramphistomidae in this region. Between 2006 and 2008, we sampled 715 adult flukes from the rumen of 32 cattle from the departments of Meta and Guaviare. The morphological analysis shows that the adult has the following features typical of the family Paramphistomidae: Laurers canal crossing the excretory vesicle and opening posteriorly to the excretory pore; acetabulum small as in the genus Cotylophoron; pharynx as in Calicophoron; genital sucker without sphincter; absence of esophageal bulb and the lateral and dorsal vitellaria converging posteriorly in the body, below the acetabulum, as in C. panamensis. This study confirms the presence of paramfistomosis in Meta and it is the first report of Cotylophoron panamensis in cattle from the department of Guaviare, therefore expanding its geographic range in Colombia.

COL0013746

COL0015099

Country
Colombia
Keywords

Trematodos, Paramphistomosis, Trematódeos, Cotylophoron panamensis, 590, Bos indicus, Cattle, Trematoda, 630, Bovinos

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
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