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Redescription of Parafilaria bovicola Tubangui, 1934 (Nematoda: Filarioidea) from Swedish Cattle

Beskrivning av Parafilaria bovicola Tubangui, 1934 (Nematoda: Filarioidea) från svenska nötkreatur.

Abstract

Parafilaria bovicola was introduced into Sweden and identified for the first time in Swedish cattle in 1978. Since then the parasite has become well established and has been responsible for substantial economic losses in Swedish beef production. Although studies have been undertaken on serodiagnosis, life cycle, vector and geographical distribution within Sweden this is the first full description of P. bovicola from Swedish cattle and the first study to use scanning electron microscopy. P. bulgarica Daskalov, 1944 is regarded as a synonym of P. bovicola Tubangui, 1934. Tooth-like thickenings described on the anterior lobes of the oesophagus for the first time may assist the parasite in its migration through the host tissues.

Sammendrag

Parafilaria bovicola är en filarid nematod vars förekomst hos nötkreatur beskrevs i Sverige första gången 1978. Sedan dess har parasiten etablerat sig i landet och orsakar fortfarande förluster inom nöt-köttsproduktionen. I Sverige har studier bl.a. gjorts över parasitens epidemiologi i landet samt utvecklingen av serologisk diagnostik for påvisande av in-fektionen, men föreliggande arbete är den första fullständiga morfologiska beskrivningen av P. bovicola från svenska nötkreatur och den första Studien som utnyttjar svepelektronmikroskopi. P. bulgarica Daskalov, 1944 föreslås vara en synonym till P. bovicola Tubangui, 1934. De tandlika förtjockningar på de främre loberna av esofagus som beskrivs här för första gången kan ha som funktion att underlätta parasitens migration genom värddjurets vävnader.

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Gibbons, L.M., Zakrisson, G. & Uggla, A. Redescription of Parafilaria bovicola Tubangui, 1934 (Nematoda: Filarioidea) from Swedish Cattle. Acta Vet Scand 41, 85–91 (2000). https://doi.org/10.1186/BF03549658

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