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| Content Provider | Springer Nature Link |
|---|---|
| Author | López, C. Panadero, R. Bravo, A. Paz, A. Sánchez Andrade, R. Díez Bas, P. Morrondo, P. |
| Copyright Year | 2003 |
| Abstract | Samples of heart, oesophagus and diaphragm muscle from 132 roe deer (Capreolus capreolus) hunted in game reserves from Lugo province (north-western Spain) were examined to determine the prevalence ofSarcocystis infection. Sarcocysts were examined by light (LM) and transmission electron microscopy (TEM). The overall prevalence of infection was 85.6%, with a density of 15±16.8 cysts/g of muscle. The highest prevalence was observed in the large preserve in Ancares (97.3%) compared to that of the smaller reserves (81.1%). Size and shape differences were observed in the sarcocysts from the different muscular organs. The highest density of infection was in the heart, particularly to the inner part of the myocardium. LM distinguished two types of sarcocysts: thin-walled cysts present in all the positive organs and a thick-walled cyst, identified asS. hofmanni, found in the oesophagus of one animal. By TEM only one type of cyst wall, having a thin primary wall that formed folded hairlike protrusions, could be differentiated. Ultrastructural features of the cyst wall demonstrated that this species corresponds with the unnamed speciesSarcocystis sp.Zur Bestimmung der Prävalenz von Sarcocystis-Infektionen wurden Herz-, ösophagus- und Zwerch-fellmuskel-Proben von 132 Rehen (Capreolus capreolus) aus Wildschutz-Gebieten in der Provinz Lugo (Nordwest-Spanien) untersucht. Die gefundenen Zysten wurden mittels Lichtmikroskopie und Transmissions-Elektronenmikroskopie untersucht. Die allgemeine Sarkosporidiose-Prävalenz betrug 85,6 %, die mittlere Befallsdichte lag bei 15±16,8 Zysten/g Muskelgewebe. Die höchste Prävalenz wurde mit 97,3 % in einem großen Gehege in Ancarez beobachtet, während sie in kleineren Gehegen 81,1 % betrug. Es bestanden Unterschiede in Größe und Form zwischen den Zysten aus den Muskeln verschiedener Organe. Die höchste Befallsdichte wies der Herzmuskel, speziell das innere Myokard auf. Lichtmikroskopisch ließen sich zwei Zystentypen unterscheiden. Dünnwandige Zysten waren in allen positiven Organen vorhanden. Ferner fand sich eine einzelne dickwandige, alsSarcocystis hofmanni identifizierte Zyste im Oesophagus eines Rehes. Elektronenmikroskopisch ließ sich nur ein einziger Zystenwand-Typ differenzieren, der durch eine dünne Primärwand mit gefalteten, haarartigen Protrusionen charakterisiert war. Ultrastrukturelle Merkmale der Zystenwand zeigten, dass diese Art der unbenannten SpeziesSarcocystis sp. entspricht.Des échantillons de muscles de cóeur, d'çesophage et de diaphragme de 132 chevreuils (Capreolus capreolus) prélevés sur des animaux tirés dans les réserves de la province de Lugo (Nord-Ouest de l'Espagne) ont été examinés afin de déterminer la prévalence d'une infection deSarcocystis. Les sarcocystes ont été analysés par microscopie optique (LM) et par microscopie électronique de transmission (TEM). La prévalence globale de l'infection était de 85,6 %, avec une densité de 15±16,8 cystes par g de muscle. La prévalence la plus élevée fut observée dans la grande réserve d'Ancares (97,3 %), comparée à celle de réserves plus petites (81.1 %). Les différences de taille et de forme étaient observées dans les sarcocystes provenant de différents organes musculaires. La densité la plus élevée d'infection se situait dans le cçeur, en particulier dans la partie interne du myocarde. Par LM on a pu distinguer deux types de sarcocystes: des cystes à paroi mince présents dans tous les organes positifs et un cyste à paroi large, identifié comme étantS. bofmanni, trouvé dans l'çesophage d'un animal. Par TEM un seul type de paroi de cyste, présentant une paroi primaire mince formant des protrusions filiformes, put etre différencié. Des formations ultrastructurales de la paroi du cyste démontraient que cette espèce correspond à l'espèce innomée deSarcocystis sp. |
| Starting Page | 211 |
| Ending Page | 218 |
| Page Count | 8 |
| File Format | |
| ISSN | 00442887 |
| Journal | European Journal of Wildlife Research |
| Volume Number | 49 |
| Issue Number | 3 |
| e-ISSN | 14390574 |
| Language | French |
| Publisher | Springer-Verlag |
| Publisher Date | 2003-01-01 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Capreolus capreolus Reh Sarcocystis spp Ultrastruktur Nordwest-Spanien Animal Ecology Zoology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecology Animal Science and Zoology |
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