scholarly journals Euryhelmis squamula (Digenea: Heterophyidae) Recovered from Korean Raccoon Dog, Nyctereutes procyonoides koreensis, in Korea

2021 ◽  
Vol 59 (3) ◽  
pp. 303-309
Author(s):  
Hyeon Cheol Kim ◽  
Eui Ju Hong ◽  
Si Yun Ryu ◽  
Jinho Park ◽  
Jeong Gon Cho ◽  
...  
Keyword(s):  
Small Intestine ◽  
Oral Sucker ◽  
Genital Pore ◽  
Morphological Characteristics ◽  
Middle Level ◽  
Nyctereutes Procyonoides ◽  
Raccoon Dog ◽  
Left Testis ◽  
Posterior Portion ◽  
Small Intestines

In this study, we intended to describe an unrecorded species of heterophyid trematode recovered from the small intestine of a Korean raccoon dog, Nyctereutes procyonoides koreensis, in Korea. A total of 13 small flukes were collected from a deceased Korean raccoon dog which was found in Chuncheon-si, Gangwon-do, Korea in May 2017. The trematode body were covered with many small spines, rectangular, broader than long, 807-1,103 µm long and 1,270-1,550 µm wide. Oral sucker in the anterior end slightly smaller than acetabulum. Pharynx muscular and well developed. Esophagus relatively long and sigmoid. Acetabulum small and located at median in anterior 2/5 portion. Ceca bifurcated at the anterior of genital pore and acetabulum and terminated at testis level. Testes larger, deeply lobed and located at the near of posterior end of body. Ovary small, triangular and located at the slight left of median and the anterior of left testis. Vitelline follicles dendritic and extend from the middle level of esophagus to the posterior portion of body. Eggs embryonated, operculated, small and 33-35×15-16 µm in size. Based on the morphological characteristics, the small heterophyid flukes recovered from the small intestines of Korean raccoon dog, N. procyonoides koreensis, were identified as Euryhelmis squamula (Digenea: Heterophyidae). Accordingly, this species of heterophyid flukes is to be a new trematode fauna in Korea by this study.

scholarly journals Cryptocotyle lata (Trematoda: Heterophyidae) Adult from a Korean Raccoon Dog, Nyctereutes procyonoides koreensis

2021 ◽  
Vol 59 (6) ◽  
pp. 645-649
Author(s):  
Heon Woo Lee ◽  
Eui Ju Hong ◽  
Hyeon Cheol Kim ◽  
Si Yun Ryu ◽  
Bae Keun Park
Keyword(s):  
Phylogenetic Tree ◽  
Ventral Sucker ◽  
Definitive Host ◽  
Genital Pore ◽  
Posterior Region ◽  
Molecular Characteristics ◽  
Nyctereutes Procyonoides ◽  
Raccoon Dog ◽  
Left Testis

Total 513 heterophyid flukes were collected from a carcass of wild Korean raccoon dog, Nyctereutes procyonoides koreensis, in Korea. With morphological and molecular characteristics, the flukes were identified to Cryptocotyle lata. The adult C. lata were minute, transparent, pentagonal, 522 µm long by 425 µm wide. Ceca extended into post-testicular region. Ventrogenital sac elliptical, 79 µm by 87 µm with genital pore and ventral sucker. Two testes semielliptical and slightly lobed, located in the posterior region, right testis 173 µm by 155 µm, left testis 130 µm by 134 µm. In a phylogenetic tree, the fluke specimen of this study was grouped with C. lata divergent from Cryptocotyle lingua. We report here N. procyonoides koreensis first as a natural definitive host of C. lata.

scholarly journals The First Record of Echinococcus ortleppi (G5) Tapeworms in Grey Wolf (Canis lupus)

Pathogens ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 853
Author(s):  
Jacek Karamon ◽  
Małgorzata Samorek-Pieróg ◽  
Jacek Sroka ◽  
Ewa Bilska-Zając ◽  
Joanna Dąbrowska ◽  
...  
Keyword(s):  
Small Intestine ◽  
Molecular Identification ◽  
Canis Lupus ◽  
Sequence Comparison ◽  
First Record ◽  
Grey Wolf ◽  
South Eastern ◽  
Counting Technique ◽  
Small Intestines ◽  
First Time

The aim of this study is to confirm the presence and molecular identification of Echinococcus tapeworms in wolves from south-eastern Poland. An investigation was carried out on the intestines of 13 wolves from south-eastern Poland. The small intestines were divided into three equal segments. Each segment was separately examined using the sedimentation and counting technique (SCT). The detected Echinococcus tapeworms were isolated and identified by PCRs and sequencing (nad1 and cox1 genes). Additionally, DNA isolated from the feces of wolves positive for Echinococcus tapeworms was examined with two diagnostic PCRs. The intestines of one wolf were positive for E. granulosus s.l. when assessed by SCT; the intestine was from a six-year-old male wolf killed in a communication accident. We detected 61 adult tapeworms: 42 in the anterior, 14 in the middle, and 5 in the posterior parts of the small intestine. The PCRs conducted for cox1 and nad1 produced specific products. A sequence comparison with the GenBank database showed similarity to the deposited E. ortleppi (G5) sequences. An analysis of the available phylogenetic sequences showed very little variation within the species of E. ortleppi (G5), and identity ranged from 99.10% to 100.00% in the case of cox1 and from 99.04 to 100.00% in the case of nad1. One of the two diagnostic PCRs used and performed on the feces of Echinococcus-positive animals showed product specific for E. granulosus. This study showed the presence of adult E. ortleppi tapeworms in wolves for the first time.

Winter Diet of the Raccoon Dog (Nyctereutes procyonoides) in Urban Parks, Central Tokyo

Mammal Study ◽  
2018 ◽  
Vol 43 (4) ◽  
Author(s):  
Takaaki Enomoto ◽  
Masayuki U. Saito ◽  
Masato Yoshikawa ◽  
Yayoi Kaneko
Keyword(s):  
Urban Parks ◽  
Nyctereutes Procyonoides ◽  
Raccoon Dog ◽  
Winter Diet

scholarly journals Diet composition of the raccoon dog (Nyctereutes procyonoides) and badger (Meles meles) in Czech Republic

2004 ◽  
Vol 52 (1) ◽  
pp. 81-90
Author(s):  
Hana Šuláková
Keyword(s):  
Protected Area ◽  
Diet Composition ◽  
Meles Meles ◽  
Relative Volume ◽  
Food Sources ◽  
Nyctereutes Procyonoides ◽  
Raccoon Dog ◽  
Food Items ◽  
Competition For Food ◽  
Frequency Occurrence

Diets of the raccoon dog and badger were studied in the Landscape Protected Area (LPA) Litovelské Pomoraví from 2000 to 2001 by collecting faeces from latrines during March – December every year. The relative volume and frequency occurrence of each food item in the feaces were calculated. Vertebrates and invertebrates constituted the bulk of the raccoon dog diet, while plants and invertebrates were most frequently eaten by the badger. Insecta and Rodentia were important to the raccoon dog, but it also consumed other food items. The raccoon dog was more omnivorous that the badger. Badger fed very frequently on plant material, raccoon dog, instead, frequently ate insects, especially beetles. In conclusion, the diet of the raccoon dog overlaps largely with that of badger, and some competition for food may occur between these species in the LPA Litovelské Pomoraví; however, their preferred food sources differ to some extent, which helps them to avoid competition.

scholarly journals Garbage in the diet of carnivores in an agricultural area

2016 ◽  
Vol 2 (1) ◽  
pp. 81-86 ◽  
Author(s):  
Łukasz Jankowiak ◽  
Anna W. Malecha ◽  
Agata J. Krawczyk
Keyword(s):  
Urban Areas ◽  
Red Fox ◽  
American Mink ◽  
Natural Food ◽  
Nyctereutes Procyonoides ◽  
Raccoon Dog ◽  
Eurasian Otter ◽  
Spatial Changes ◽  
Mammalian Predators ◽  
Agricultural Areas

AbstractHuman food waste is considered to be richer in carbohydrates, lipids and proteins than most natural food supplies; however, it is very well digested in scats. So, as an indication of this kind of food in the diet, we have used each indigestible, anthropogenic origin element found in faeces (e.g., glass, plastic, rubber, etc.). There are few studies discussing the importance of garbage in the diet of mammalian predators living in farmland; definitely, most focus on this issue in urban areas. We studied the contribution of garbage in the diet of raccoon dog (Nyctereutes procyonoides), red fox (Vulpes vulpes), marten (Martessp.), polecat (Mustela putorius), stoat (Mustela erminea), American mink (Neovison vison) and Eurasian otter (Lutra lutra) in the agricultural areas of western Poland in 2006-2010. In addition, we examined the spatial changes in the diet of red fox and polecat. The largest contribution of garbage was found in scats of raccoon dog (8.8%), red fox (4.8%) and marten (4.3%). The diet of polecat, stoat and Eurasian otter contained 2.5%, 1.7% and 0.2% garbage items respectively. The most frequent item was plastic. Our analysis showed that garbage consumption by red fox and polecat was greater closer to human settlements. The results reveal a continuous gradient in the garbage consumption that corresponds with the degree of synanthropization of particular species.

scholarly journals The invasive raccoon dog (Nyctereutes procyonoides, gray) – an update of its distribution on the Balkans

2017 ◽  
Vol 19 (2) ◽  
pp. 77-82
Author(s):  
Elitsa Popova ◽  
Diana Zlatanova
Keyword(s):  
Literature Search ◽  
Nyctereutes Procyonoides ◽  
Raccoon Dog ◽  
Invasion Pathways ◽  
The Balkans ◽  
Secondary Invasion ◽  
Low Humidity ◽  
In The Beginning ◽  
Distribution In Europe ◽  
Scarce Data

Abstract The raccoon dog, which lives especially near water and is rare in areas with low humidity, has been spreading throughout Europe since its introduction to Western Russia in the beginning of the 20th century. Official accounts of its distribution in Europe are often inaccurate due to scarce data. A literature search was conducted to identify records of the raccoon dog in the Balkans. More than 60 records were identified, including ones unlisted by the cited source from central and western Bulgaria, southern Serbia, Macedonia, Bosnia, Herzegovina, and Greece. The raccoon dog can be found on the Balkans either along the Danube (which is a major corridor for its invasion) or along its tributaries, which might represent secondary invasion pathways.

Leptospiral meningoencephalitis in a raccoon dog

2021 ◽  
Vol 33 (6) ◽  
pp. 1137-1141
Author(s):  
Risako Yamashita ◽  
Toshinori Yoshida ◽  
Mio Kobayashi ◽  
Suzuka Uomoto ◽  
Saori Shimizu ◽  
...  
Keyword(s):  
T Cells ◽  
Small Intestine ◽  
Foreign Body ◽  
Pulmonary Edema ◽  
Molecular Layer ◽  
Leptospira Interrogans ◽  
Raccoon Dog ◽  
Recumbent Position ◽  
Pathogenic Leptospira ◽  
Glial Nodules

Neuroleptospirosis is a rare disease caused by pathogenic Leptospira interrogans in humans; however, it has not been fully studied in animals. A young wild raccoon dog was found convulsing in the recumbent position and died the next day. Histologic examination revealed nonsuppurative meningoencephalitis in the cerebrum, cerebellum, midbrain, and medulla oblongata. The lesions consisted of mixed infiltrates of Iba1-positive macrophages and CD3-positive T cells, with a small number of CD79α-positive B cells and myeloperoxidase-positive neutrophils. In the frontal cortex, perivascular cuffs and adjacent microglial nodules were distributed diffusely, especially in the molecular layer. Glial nodules were comprised of Iba1- and myeloperoxidase-positive activated microglia. Immunohistochemistry revealed leptospires in mononuclear cell perivascular cuffs, but not in glial nodules. Neuroleptospirosis was accompanied by Leptospira-related nonsuppurative interstitial nephritis, pulmonary edema and hemorrhage, and coronary periarteritis, as well as Toxocara tanuki in the small intestine and nonspecific foreign-body granulomas in the lungs and stomach.

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