Rivista e Edizione

Volume 59 (2022): Edizione 2 (June 2022)

Volume 59 (2022): Edizione 1 (March 2022)

Volume 58 (2021): Edizione 4 (December 2021)

Volume 58 (2021): Edizione 3 (September 2021)

Volume 58 (2021): Edizione 2 (June 2021)

Volume 58 (2021): Edizione 1 (March 2021)

Volume 57 (2020): Edizione 4 (December 2020)

Volume 57 (2020): Edizione 3 (September 2020)

Volume 57 (2020): Edizione 2 (June 2020)

Volume 57 (2020): Edizione 1 (March 2020)

Volume 56 (2019): Edizione 4 (December 2019)

Volume 56 (2019): Edizione 3 (September 2019)

Volume 56 (2019): Edizione 2 (June 2019)

Volume 56 (2019): Edizione 1 (March 2019)

Volume 55 (2018): Edizione 4 (December 2018)

Volume 55 (2018): Edizione 3 (September 2018)

Volume 55 (2018): Edizione 2 (June 2018)

Volume 55 (2018): Edizione 1 (March 2018)

Volume 54 (2017): Edizione 4 (December 2017)
Special Edizione: This issue is dedicated to the memory of Milan Ryboš, DVM, D.Sc.

Volume 54 (2017): Edizione 3 (September 2017)

Volume 54 (2017): Edizione 2 (June 2017)

Volume 54 (2017): Edizione 1 (March 2017)

Volume 53 (2016): Edizione 4 (December 2016)

Volume 53 (2016): Edizione 3 (September 2016)

Volume 53 (2016): Edizione 2 (June 2016)

Volume 53 (2016): Edizione 1 (March 2016)

Volume 52 (2015): Edizione 4 (December 2015)

Volume 52 (2015): Edizione 3 (September 2015)

Volume 52 (2015): Edizione 2 (June 2015)

Volume 52 (2015): Edizione 1 (March 2015)

Volume 51 (2014): Edizione 4 (December 2014)

Volume 51 (2014): Edizione 3 (September 2014)

Volume 51 (2014): Edizione 2 (June 2014)

Volume 51 (2014): Edizione 1 (March 2014)

Volume 50 (2013): Edizione 4 (December 2013)

Volume 50 (2013): Edizione 3 (September 2013)

Volume 50 (2013): Edizione 2 (June 2013)

Volume 50 (2013): Edizione 1 (May 2013)

Volume 49 (2012): Edizione 4 (December 2012)

Volume 49 (2012): Edizione 3 (September 2012)

Volume 49 (2012): Edizione 2 (June 2012)

Volume 49 (2012): Edizione 1 (March 2012)

Volume 48 (2011): Edizione 4 (December 2011)

Volume 48 (2011): Edizione 3 (September 2011)

Volume 48 (2011): Edizione 2 (June 2011)

Volume 48 (2011): Edizione 1 (March 2011)

Volume 47 (2010): Edizione 4 (December 2010)

Volume 47 (2010): Edizione 3 (September 2010)

Volume 47 (2010): Edizione 2 (June 2010)

Volume 47 (2010): Edizione 1 (March 2010)

Volume 46 (2009): Edizione 4 (December 2009)

Volume 46 (2009): Edizione 3 (September 2009)

Volume 46 (2009): Edizione 2 (June 2009)

Volume 46 (2009): Edizione 1 (March 2009)

Volume 45 (2008): Edizione 4 (December 2008)

Volume 45 (2008): Edizione 3 (September 2008)

Volume 45 (2008): Edizione 2 (June 2008)

Volume 45 (2008): Edizione 1 (March 2008)

Volume 44 (2007): Edizione 4 (December 2007)

Volume 44 (2007): Edizione 3 (September 2007)

Volume 44 (2007): Edizione 2 (June 2007)

Volume 44 (2007): Edizione 1 (March 2007)

Volume 43 (2006): Edizione 4 (December 2006)

Volume 43 (2006): Edizione 3 (June 2006)

Volume 43 (2006): Edizione 2 (June 2006)

Volume 43 (2006): Edizione 1 (March 2006)

Dettagli della rivista
Formato
Rivista
eISSN
1336-9083
ISSN
0440-6605
Pubblicato per la prima volta
22 Apr 2006
Periodo di pubblicazione
4 volte all'anno
Lingue
Inglese

Cerca

Volume 47 (2010): Edizione 4 (December 2010)

Dettagli della rivista
Formato
Rivista
eISSN
1336-9083
ISSN
0440-6605
Pubblicato per la prima volta
22 Apr 2006
Periodo di pubblicazione
4 volte all'anno
Lingue
Inglese

Cerca

13 Articoli
access type Accesso libero

Estimated egg production of Fasciola gigantica (Japanese strain) in goats experimentally infected with 50 metacercariae

Pubblicato online: 17 Dec 2010
Pagine: 199 - 203

Astratto

Abstract

Egg production capacity in Fasciola gigantica (Japanese strain) was estimated from egg count data obtained by the experimental infection of two goats. The goats were inoculated with a single dose of 50 metacercariae. The first goat was necropsied 132 days after infection (DAI) and the second goat 732 DAI. After patency, daily faecal production was collected and weighed and number of eggs per gram was counted. At necropsy, 23 flukes were recovered from the liver of the first goat, and five from the second goat. The mean number of eggs produced per day per worm (± 95 % confidence limits) was 9 477.9 (± 764.92) for the first goat at 106 to 132 DAI, and 8,064.1 (± 416.49) at 195 to 561 DAI for the second goat. The number of eggs produced per day per worm in F. gigantica (Japanese strain) has thus reached values ranged from approximately 8 000 to 10 000 eggs.

Parole chiave

  • Fasciola gigantica (Japanese strain)
  • goats
  • experimental infection
  • egg production capacity
  • fecundity
access type Accesso libero

Nematode infections in Slovak children hospitalised during 2008–2009

Pubblicato online: 17 Dec 2010
Pagine: 204 - 211

Astratto

Abstract

A study involved 1800 hospitalised children (age: 9 months to 16 years) examined by ovoscopic analyses and confirmed the occurrence of Ascaris lumbricoides and Trichuris trichiura in 46 patients (2.55 %). Of these, 30 patients had Ascaris infection, 13 were positive for both nematodes and 3 patients had Trichuris infection. The mean count of A. lumbricoides eggs in positive cases was 1050 eggs per gramme (EPG) in range 150–4450 EPG. The mean count of T. trichiura eggs was 150 EPG (50–250 EPG). The highest intensities of A. lumbricoides and T. trichiura infections occurred in children 3–5 years of age living in poor hygienic conditions. Most common clinical conditions in all the patients included anaemia combined with complicated bronchopneumonia, colitis and gastritis. The strongest correlation between the parasite burden and selected laboratory test data (eosinophil count, haemoglobin, total serum iron) was found in children of 2 years of age (P < 0.05) and decreased with age.

Parole chiave

  • children
  • ascariasis
  • trichuriasis
  • McMaster technique
  • clinical manifestations
access type Accesso libero

Structure of Metastrongylidae in wild boars from southern Poland

Pubblicato online: 17 Dec 2010
Pagine: 212 - 218

Astratto

Abstract

Of 25 wild boars (Sus scrofa) collected in southern Poland during the winter season of 2009/2010 and examined for lung nematodes, 20 (80.0 %) were concominantly infected, and the mean ± SD intensity reached 84.8 ± 67.6 (range 7–250) parasites. From the whole of 1695 gathered Metastrongylidae specimens, 1121 (66.1 %) were distinguished to five species: Metastrongylus pudendotectus, M. salmi, M. asymmetricus, M. elongatus and M. confusus. The species ratios were 3.4:2.7:1.5:1.1:1.0, respectively, with the average male to female worms proportion of 1:2.7. M. pudendotectus and M. confusus affected most (76.0 %) of animals, followed by M. salmi (72.0 %), M. elongatus (64.0 %) and M. asymmetricus (40.0 %). Compared to juveniles under 1 year and females, adults and male hosts tended to be more infected, and wild boars inhabiting primeval forest were more affected by lung nematodes than those living in the arable land, all the differences being however not significant. Possible factors structuring Metastrongylidae communities are discussed.

Parole chiave

  • Metastrongylus spp.
  • wild boars
  • southern Poland
access type Accesso libero

Parasitic infections of the European brown hare (Lepus europaeus Pallas, 1778) in south -western Slovakia

Pubblicato online: 17 Dec 2010
Pagine: 219 - 225

Astratto

Abstract

A total of 74 European brown hares (Lepus europaeus Pallas, 1778), hunted during the winter seasons of 2006 and 2007, were examined by dissection for the presence of helminths and coprologically for protozoa. The animals came from five districts with a high population density of this species. Our results revealed 54.5 % of specimens being infected with one or more helminth species and a high prevalence of eimeriid coccidia (91.89 %). The most prevalent helminth species was Trichuris leporis (55.41 %). Lower prevalence was found for Passalurus ambiguus (12.16 %) and Trichostrongylus retortaeformis (6.76 %). The intensity of infection was low for all parasite species. As for coccidia, Eimeria semisculpta (74.35 %) and E. leporis (61.54%) were recorded in all districts. Other coccidia showed lower prevalence rates: E. robertsoni (15.38 %), E. europaea (12.82 %), E. babatica (12.82 %), E. hungarica (5.13 %) and E. towsendi (2.56 %), occurring only in some districts. The highest infection rate was observed in E. semisculpta, 7657.8 oocysts per gram of faeces (OPG). The potential effect of protozoan infection on hare mortality is discussed.

Parole chiave

  • hares
  • eimeriid coccidia
  • helminths
  • Slovakia
access type Accesso libero

Metazoan endoparasites of three species of anurans collected from the Middle Black Sea Region of Turkey

Pubblicato online: 17 Dec 2010
Pagine: 226 - 232

Astratto

Abstract

In this report, European common toads; Bufo bufo, European green toads Bufo viridis and marsh frogs Rana ridibunda were collected in Amasya, Çorum, and Tokat Provinces (Middle Black Sea Region of Turkey) 2005 and 2006 and examined for helminths. Two of 2 (100 %) Bufo bufo and 8 of 8 (100 %) Bufo viridis and 57 of 63 (90.5 %) Rana ridibunda were infected with 1 or more helminths. The helminths of B. bufo included Oswaldocruzia filiformis and Oxysomatium brevicaudatum. The helminth fauna of B. viridis comprised 5 species: 1 species of trematode (Pleurogenoides medians), 1 species of cestode (Nematotaenia dispar) and 3 species of nematodes, (Oswaldocruzia filiformis, Cosmocerca ornata, and Oxysomatium brevicaudatum), while the helminth fauna of Rana ridibunda comprised 9 species: 4 species of trematodes (Gorgodera cygnoides, Gorgoderina vitelliloba, Haematoloechus breviansa, and Opisthioglyphe ranae), 3 species of nematodes Oswaldocruzia filiformis, Cosmocerca ornata, and Oxysomatium brevicaudatum), and 2 species of acanthocephalans (Pomphorhynchus laevis and Acanthocephalus ranae). Oswaldocruzia filiformis, Cosmocerca ornata, and Oxysomatium brevicaudatum were collected from all three host species. In addition, Pleurogenoides medians represents a new host record for Bufo viridis in Turkey.

Parole chiave

  • Bufo bufo
  • Bufo viridis
  • Rana ridibunda
  • endoparasites
  • helminths
  • Middle Black Sea Region
  • Turkey
access type Accesso libero

Drinking water ivermectin treatment for eradication of pinworm infections from laboratory rat colonies

Pubblicato online: 17 Dec 2010
Pagine: 233 - 237

Astratto

Abstract

The effects of ivermectin were studied in laboratory rats naturally infected with the pinworm Syphacia muris. Ivermectin was administered over four 5-days periods in drinking water; the ivermectin dose was 2.5 mg/kg of body weight per day. All the rats were weighed every five days and their ova production was monitored by a cellophane — tape test. Every fifth day six males and six females from the experimental group were euthanized and examined for adult pinworms and larvae. The rats’ health condition, behaviour and consumption of food and water were monitored every day. The aim of this study was to investigate the effectiveness of orally administered ivermectin as a treatment against adult pinworms and their larvae in laboratory rat colonies.

Parole chiave

  • Syphacia muris
  • Aspiculuris tetraptera
  • ivermectin
  • laboratory rat
  • pinworm
access type Accesso libero

Helminths of the brown rat (Rattus norvegicus) (Berkenhout, 1769) in the city of Palermo, Italy

Pubblicato online: 17 Dec 2010
Pagine: 238 - 240

Astratto

Abstract

A helminthological survey was performed on 143 brown rats (Rattus norvegicus) from the city of Palermo (Italy). The overall prevalence of helminth infection was 98.60 %. The following parasites were found: Brachylaima sp. (prevalence 8.39 %) (Trematoda); Taenia taeniaeformis larvae (11.89 %), Rodentolepis nana (13.29 %), Hymenolepis diminuta (24.48 %) (Cestoda); Gongylonema sp., (4.90 %), Syphacia muris (8.39 %), Nippostrongylus brasiliensis (18.88 %), Eucoleus gastricus (30.07 %), Mastophorus muris (30.77 %), Capillaria hepatica (54.55 %), Heterakis spumosa (82.52 %) (Nematoda) and one acanthocephalan (0.70 %). The species found in males were also present in females, with the exception of the acanthocephalan. No significant differences were found between males and females in prevalence (P%) or mean infection intensity (MI). However, a significant correlation between both P% and MI, as well as host age, was observed in some helminth species. Hosts were infected by one to six helminth species (median = 3). This is the first report from Sicily of helminths in R. norvegicus.

Parole chiave

  • Rattus norvegicus
  • wild brown rats
  • helminths
  • Sicily
  • Italy
access type Accesso libero

Seasonal population dynamics of the monogeneans Pseudorhabdosynochus coioidesis and P. serrani on wild versus cultured groupers in Daya Bay, South China Sea

Pubblicato online: 17 Dec 2010
Pagine: 241 - 250

Astratto

Abstract

In this paper, seasonal samples of wild versus cultured groupers, Epinephelus spp., from Daya Bay, South China Sea were examined to survey the seasonality of two important species, Pseudorhabdosynochus coioidesis and P. serrani (Monogenea: Diplectanidae), and to analyze the interspecific relationships between these two parasites. Between April 2008 and January 2009, P. coioidesis and P. serrani were found to be parasitic only on E. coioides Hamilton during summer and winter in the natural waters of Daya Bay, exhibiting a high degree of host specificity, whereas they co-occurred and persisted on several species of hosts, such as E. coioides, E. bruneus Block and E. awoara Temminck & Schlegel, in an experimental polyculture pond during several seasons. E. coioides is the main host for both of these two monogenean species. The overall prevalences and mean intensities of these two parasites on polycultured Epinephelus spp. showed the same pattern of seasonal fluctuations, with the maximum values during autumn, except for the overall prevalence of P. serrani, which reached its maximum values during summer and winter and the minimum values during spring and autumn. Prevalence and mean intensity were found to be related to host size. In the wild, medium-sized fishes harboured higher infections, whereas under cultured conditions the small-sized and large-sized fishes were more heavily infected. Simultaneous infections of P. coioidesis and P. serrani were common, and there was a significant positive interspecific correlation between these two parasites.

Parole chiave

  • population dynamics
  • Monogenea
  • Pseudorhabdosynochus coioidesis
  • Pseudorhabdosynochus serrani
  • Epinephelus
  • Daya Bay, South China Sea
access type Accesso libero

Helminth fauna of two cyprinid fish (Campostoma ornatum and Codoma ornata) from the upper Piaxtla River, Northwestern Mexico

Pubblicato online: 17 Dec 2010
Pagine: 251 - 256

Astratto

Abstract

The helminth parasite fauna of 2 species of freshwater fishes from the upper Piaxtla River in northwestern Mexico was studied. A total of 41 cyprinids, corresponding to 20 Campostoma ornatum and 21 Codoma ornata were analyzed. Six species of platyhelminths were recorded, including 2 species of monogeneans (Gyrodactylus sp. and Dactylogyrus sp.), 3 species of digeneans (Posthodiplostomum minimum, Clinostomum complanatum, and Margotrema sp.), and 1 species of tapeworm (Bothriocephalus acheilognathi). Helminth parasite infracommunities were depauperate, showed low richness and diversity values, and were dominated by 1 or 2 helminth species. This pattern is consistent with that observed for the helminth parasite communities in other freshwater fishes in central and northern Mexico.

Parole chiave

  • Platyhelminthes
  • Digenea
  • Monogenea
  • Cestoda
  • parasite communities
  • Cyprinidae
  • Mexico
access type Accesso libero

Ultrastructure of the mature spermatozoon of Eubothrium rugosum (Batsch, 1786) with a re-assessment of the spermatozoon ultrastructure of Eubothrium crassum (Bloch, 1779) (Cestoda: Bothriocephalidea)

Pubblicato online: 17 Dec 2010
Pagine: 257 - 263

Astratto

Abstract

The ultrastructure of the mature spermatozoon of the bothriocephalidean tapeworm Eubothrium rugosum, a parasite of the burbot, Lota lota (L.), was studied by transmission electron microscopy for the first time. In addition, spermatozoon ultrastructure of Eubothrium crassum has been re-assessed. New is the finding, that the mature spermatozoa of both species of the genus Eubothrium exhibit essentially the same general morphology. They are filiform cells tapering at both extremities, and they possess the two axonemes with 9+“1” pattern of Trepaxonemata, attachment zones, a nucleus, cortical microtubules (CMs), electron-dense granules, and a single crested body. Structural polymorphism of the CBs has been found within the two Eubothrium species for the first time. The anterior ring of electron-dense tubular structures surrounding a single axoneme marks the border between the two defined regions, region I and region II of the spermatozoon. This unique feature has only been observed in the Bothriocephalidea. The anuclear axoneme region II of Eubothrium spermatozoa fluently verges into a nuclear region III. The posterior part of the spermatozoon contains one-axoneme, few CMs and a posterior extremity of the nucleus that subsequently disappears. The posterior extremity of the male gametes of the genus Eubothrium exhibits elements of a disorganized axoneme which characterize also spermatozoa of the family Triaenophoridae. Discussed are interspecific similarities and differences between the spermatozoa of the two Eubothrium species as well as between these and other Eucestoda.

Parole chiave

  • ultrastructure
  • spermatozoon
  • Eubothrium
  • Bothriocephalidea
  • Cestoda
access type Accesso libero

The notes on the occurrence of Longidorus poessneckensis Altherr, 1974 (Nematoda: Dorylaimida) in the Slovak Republic

Pubblicato online: 17 Dec 2010
Pagine: 264 - 268

Astratto

Abstract

The record of occurrence of Longidorus poessneckensis Altherr, 1974 in forest soils with Betuleto-Carpineto-Quercetum in geographically specific conditions of a hilltop contributes to the broadening of ecological knowledge about this species. To date, the species was considered to prefer the habitats along river banks — narrow or large valleys and plains. The ecological, morphometrical and molecular characteristics of recorded L. poessneckensis are presented here.

Parole chiave

  • Longidorus poessneckensis
  • ecology
  • morphology
  • molecular characteristic
  • Slovak Republic
access type Accesso libero

The effects of flubendazole and its metabolites on the larval development of Haemonchus contortus (Nematoda: Trichostrongylidae): an in vitro study

Pubblicato online: 17 Dec 2010
Pagine: 269 - 272

Astratto

Abstract

The anthelmintic effects of flubendazole (FLU), its two main metabolites reduced flubendazole (FLU-R) and hydrolyzed flubendazole (FLU-H), and thiabendazole (TBZ) were compared using an in vitro larval development test in two isolates of Haemonchus contortus, a fully susceptible isolate (HCS) and a multi-resistant isolate (HCR). Results were quantified as 50 % lethal concentration (LC50), 99 % lethal concentration (LC99), efficacy factor (EF), and resistance factor (RF). For HCS, both LC50 and LC99 of FLU were lower than those of the reference TBZ. The anthelmintic activity of FLU-R in HCS and HCR was 13 and 6 times lower than the activity of FLU, respectively. The anthelmintic activity of FLU-H was negligible (approximately 363–853 times lower) compared to that of FLU. Although a marked resistance of the HCR isolate to TBZ was confirmed, only a low tolerance to FLU-R and slightly higher tolerance to FLU were found.

Parole chiave

  • benzimidazoles
  • biotransformation
  • anthelmintic resistance
  • larval development test
access type Accesso libero

First record of Schulmanela petruschewskii Shulman, 1948 (Nematoda: Capillariidae) from cultured Rainbow trout (Oncorhynchus mykiss) in Turkey

Pubblicato online: 17 Dec 2010
Pagine: 273 - 275

Astratto

Abstract

The nematode Schulmanela petruschewskii (Shulman, 1948) was identified during the parasitological examination on the liver parenchyma in one specimens of a cultured rainbow trout (Oncorhynchus mykiss) which reared in Derbent Dam Lake in Samsun, Turkey (41°25′6′’ North latitude, 35°49′52′’ East longitude) in August 2008. This parasite species was not previously reported from Turkey. With the present study we report S. petruschewskii for the first time in Turkey. This specimen which is a parasite of cultured rainbow trout (Oncorhynchus mykiss) is a new record for the Turkish parasite fauna. Original measurements and figures are presented.

Parole chiave

  • Schulmanela petruschewskii
  • Oncorhynchus mykiss
  • Turkey
13 Articoli
access type Accesso libero

Estimated egg production of Fasciola gigantica (Japanese strain) in goats experimentally infected with 50 metacercariae

Pubblicato online: 17 Dec 2010
Pagine: 199 - 203

Astratto

Abstract

Egg production capacity in Fasciola gigantica (Japanese strain) was estimated from egg count data obtained by the experimental infection of two goats. The goats were inoculated with a single dose of 50 metacercariae. The first goat was necropsied 132 days after infection (DAI) and the second goat 732 DAI. After patency, daily faecal production was collected and weighed and number of eggs per gram was counted. At necropsy, 23 flukes were recovered from the liver of the first goat, and five from the second goat. The mean number of eggs produced per day per worm (± 95 % confidence limits) was 9 477.9 (± 764.92) for the first goat at 106 to 132 DAI, and 8,064.1 (± 416.49) at 195 to 561 DAI for the second goat. The number of eggs produced per day per worm in F. gigantica (Japanese strain) has thus reached values ranged from approximately 8 000 to 10 000 eggs.

Parole chiave

  • Fasciola gigantica (Japanese strain)
  • goats
  • experimental infection
  • egg production capacity
  • fecundity
access type Accesso libero

Nematode infections in Slovak children hospitalised during 2008–2009

Pubblicato online: 17 Dec 2010
Pagine: 204 - 211

Astratto

Abstract

A study involved 1800 hospitalised children (age: 9 months to 16 years) examined by ovoscopic analyses and confirmed the occurrence of Ascaris lumbricoides and Trichuris trichiura in 46 patients (2.55 %). Of these, 30 patients had Ascaris infection, 13 were positive for both nematodes and 3 patients had Trichuris infection. The mean count of A. lumbricoides eggs in positive cases was 1050 eggs per gramme (EPG) in range 150–4450 EPG. The mean count of T. trichiura eggs was 150 EPG (50–250 EPG). The highest intensities of A. lumbricoides and T. trichiura infections occurred in children 3–5 years of age living in poor hygienic conditions. Most common clinical conditions in all the patients included anaemia combined with complicated bronchopneumonia, colitis and gastritis. The strongest correlation between the parasite burden and selected laboratory test data (eosinophil count, haemoglobin, total serum iron) was found in children of 2 years of age (P < 0.05) and decreased with age.

Parole chiave

  • children
  • ascariasis
  • trichuriasis
  • McMaster technique
  • clinical manifestations
access type Accesso libero

Structure of Metastrongylidae in wild boars from southern Poland

Pubblicato online: 17 Dec 2010
Pagine: 212 - 218

Astratto

Abstract

Of 25 wild boars (Sus scrofa) collected in southern Poland during the winter season of 2009/2010 and examined for lung nematodes, 20 (80.0 %) were concominantly infected, and the mean ± SD intensity reached 84.8 ± 67.6 (range 7–250) parasites. From the whole of 1695 gathered Metastrongylidae specimens, 1121 (66.1 %) were distinguished to five species: Metastrongylus pudendotectus, M. salmi, M. asymmetricus, M. elongatus and M. confusus. The species ratios were 3.4:2.7:1.5:1.1:1.0, respectively, with the average male to female worms proportion of 1:2.7. M. pudendotectus and M. confusus affected most (76.0 %) of animals, followed by M. salmi (72.0 %), M. elongatus (64.0 %) and M. asymmetricus (40.0 %). Compared to juveniles under 1 year and females, adults and male hosts tended to be more infected, and wild boars inhabiting primeval forest were more affected by lung nematodes than those living in the arable land, all the differences being however not significant. Possible factors structuring Metastrongylidae communities are discussed.

Parole chiave

  • Metastrongylus spp.
  • wild boars
  • southern Poland
access type Accesso libero

Parasitic infections of the European brown hare (Lepus europaeus Pallas, 1778) in south -western Slovakia

Pubblicato online: 17 Dec 2010
Pagine: 219 - 225

Astratto

Abstract

A total of 74 European brown hares (Lepus europaeus Pallas, 1778), hunted during the winter seasons of 2006 and 2007, were examined by dissection for the presence of helminths and coprologically for protozoa. The animals came from five districts with a high population density of this species. Our results revealed 54.5 % of specimens being infected with one or more helminth species and a high prevalence of eimeriid coccidia (91.89 %). The most prevalent helminth species was Trichuris leporis (55.41 %). Lower prevalence was found for Passalurus ambiguus (12.16 %) and Trichostrongylus retortaeformis (6.76 %). The intensity of infection was low for all parasite species. As for coccidia, Eimeria semisculpta (74.35 %) and E. leporis (61.54%) were recorded in all districts. Other coccidia showed lower prevalence rates: E. robertsoni (15.38 %), E. europaea (12.82 %), E. babatica (12.82 %), E. hungarica (5.13 %) and E. towsendi (2.56 %), occurring only in some districts. The highest infection rate was observed in E. semisculpta, 7657.8 oocysts per gram of faeces (OPG). The potential effect of protozoan infection on hare mortality is discussed.

Parole chiave

  • hares
  • eimeriid coccidia
  • helminths
  • Slovakia
access type Accesso libero

Metazoan endoparasites of three species of anurans collected from the Middle Black Sea Region of Turkey

Pubblicato online: 17 Dec 2010
Pagine: 226 - 232

Astratto

Abstract

In this report, European common toads; Bufo bufo, European green toads Bufo viridis and marsh frogs Rana ridibunda were collected in Amasya, Çorum, and Tokat Provinces (Middle Black Sea Region of Turkey) 2005 and 2006 and examined for helminths. Two of 2 (100 %) Bufo bufo and 8 of 8 (100 %) Bufo viridis and 57 of 63 (90.5 %) Rana ridibunda were infected with 1 or more helminths. The helminths of B. bufo included Oswaldocruzia filiformis and Oxysomatium brevicaudatum. The helminth fauna of B. viridis comprised 5 species: 1 species of trematode (Pleurogenoides medians), 1 species of cestode (Nematotaenia dispar) and 3 species of nematodes, (Oswaldocruzia filiformis, Cosmocerca ornata, and Oxysomatium brevicaudatum), while the helminth fauna of Rana ridibunda comprised 9 species: 4 species of trematodes (Gorgodera cygnoides, Gorgoderina vitelliloba, Haematoloechus breviansa, and Opisthioglyphe ranae), 3 species of nematodes Oswaldocruzia filiformis, Cosmocerca ornata, and Oxysomatium brevicaudatum), and 2 species of acanthocephalans (Pomphorhynchus laevis and Acanthocephalus ranae). Oswaldocruzia filiformis, Cosmocerca ornata, and Oxysomatium brevicaudatum were collected from all three host species. In addition, Pleurogenoides medians represents a new host record for Bufo viridis in Turkey.

Parole chiave

  • Bufo bufo
  • Bufo viridis
  • Rana ridibunda
  • endoparasites
  • helminths
  • Middle Black Sea Region
  • Turkey
access type Accesso libero

Drinking water ivermectin treatment for eradication of pinworm infections from laboratory rat colonies

Pubblicato online: 17 Dec 2010
Pagine: 233 - 237

Astratto

Abstract

The effects of ivermectin were studied in laboratory rats naturally infected with the pinworm Syphacia muris. Ivermectin was administered over four 5-days periods in drinking water; the ivermectin dose was 2.5 mg/kg of body weight per day. All the rats were weighed every five days and their ova production was monitored by a cellophane — tape test. Every fifth day six males and six females from the experimental group were euthanized and examined for adult pinworms and larvae. The rats’ health condition, behaviour and consumption of food and water were monitored every day. The aim of this study was to investigate the effectiveness of orally administered ivermectin as a treatment against adult pinworms and their larvae in laboratory rat colonies.

Parole chiave

  • Syphacia muris
  • Aspiculuris tetraptera
  • ivermectin
  • laboratory rat
  • pinworm
access type Accesso libero

Helminths of the brown rat (Rattus norvegicus) (Berkenhout, 1769) in the city of Palermo, Italy

Pubblicato online: 17 Dec 2010
Pagine: 238 - 240

Astratto

Abstract

A helminthological survey was performed on 143 brown rats (Rattus norvegicus) from the city of Palermo (Italy). The overall prevalence of helminth infection was 98.60 %. The following parasites were found: Brachylaima sp. (prevalence 8.39 %) (Trematoda); Taenia taeniaeformis larvae (11.89 %), Rodentolepis nana (13.29 %), Hymenolepis diminuta (24.48 %) (Cestoda); Gongylonema sp., (4.90 %), Syphacia muris (8.39 %), Nippostrongylus brasiliensis (18.88 %), Eucoleus gastricus (30.07 %), Mastophorus muris (30.77 %), Capillaria hepatica (54.55 %), Heterakis spumosa (82.52 %) (Nematoda) and one acanthocephalan (0.70 %). The species found in males were also present in females, with the exception of the acanthocephalan. No significant differences were found between males and females in prevalence (P%) or mean infection intensity (MI). However, a significant correlation between both P% and MI, as well as host age, was observed in some helminth species. Hosts were infected by one to six helminth species (median = 3). This is the first report from Sicily of helminths in R. norvegicus.

Parole chiave

  • Rattus norvegicus
  • wild brown rats
  • helminths
  • Sicily
  • Italy
access type Accesso libero

Seasonal population dynamics of the monogeneans Pseudorhabdosynochus coioidesis and P. serrani on wild versus cultured groupers in Daya Bay, South China Sea

Pubblicato online: 17 Dec 2010
Pagine: 241 - 250

Astratto

Abstract

In this paper, seasonal samples of wild versus cultured groupers, Epinephelus spp., from Daya Bay, South China Sea were examined to survey the seasonality of two important species, Pseudorhabdosynochus coioidesis and P. serrani (Monogenea: Diplectanidae), and to analyze the interspecific relationships between these two parasites. Between April 2008 and January 2009, P. coioidesis and P. serrani were found to be parasitic only on E. coioides Hamilton during summer and winter in the natural waters of Daya Bay, exhibiting a high degree of host specificity, whereas they co-occurred and persisted on several species of hosts, such as E. coioides, E. bruneus Block and E. awoara Temminck & Schlegel, in an experimental polyculture pond during several seasons. E. coioides is the main host for both of these two monogenean species. The overall prevalences and mean intensities of these two parasites on polycultured Epinephelus spp. showed the same pattern of seasonal fluctuations, with the maximum values during autumn, except for the overall prevalence of P. serrani, which reached its maximum values during summer and winter and the minimum values during spring and autumn. Prevalence and mean intensity were found to be related to host size. In the wild, medium-sized fishes harboured higher infections, whereas under cultured conditions the small-sized and large-sized fishes were more heavily infected. Simultaneous infections of P. coioidesis and P. serrani were common, and there was a significant positive interspecific correlation between these two parasites.

Parole chiave

  • population dynamics
  • Monogenea
  • Pseudorhabdosynochus coioidesis
  • Pseudorhabdosynochus serrani
  • Epinephelus
  • Daya Bay, South China Sea
access type Accesso libero

Helminth fauna of two cyprinid fish (Campostoma ornatum and Codoma ornata) from the upper Piaxtla River, Northwestern Mexico

Pubblicato online: 17 Dec 2010
Pagine: 251 - 256

Astratto

Abstract

The helminth parasite fauna of 2 species of freshwater fishes from the upper Piaxtla River in northwestern Mexico was studied. A total of 41 cyprinids, corresponding to 20 Campostoma ornatum and 21 Codoma ornata were analyzed. Six species of platyhelminths were recorded, including 2 species of monogeneans (Gyrodactylus sp. and Dactylogyrus sp.), 3 species of digeneans (Posthodiplostomum minimum, Clinostomum complanatum, and Margotrema sp.), and 1 species of tapeworm (Bothriocephalus acheilognathi). Helminth parasite infracommunities were depauperate, showed low richness and diversity values, and were dominated by 1 or 2 helminth species. This pattern is consistent with that observed for the helminth parasite communities in other freshwater fishes in central and northern Mexico.

Parole chiave

  • Platyhelminthes
  • Digenea
  • Monogenea
  • Cestoda
  • parasite communities
  • Cyprinidae
  • Mexico
access type Accesso libero

Ultrastructure of the mature spermatozoon of Eubothrium rugosum (Batsch, 1786) with a re-assessment of the spermatozoon ultrastructure of Eubothrium crassum (Bloch, 1779) (Cestoda: Bothriocephalidea)

Pubblicato online: 17 Dec 2010
Pagine: 257 - 263

Astratto

Abstract

The ultrastructure of the mature spermatozoon of the bothriocephalidean tapeworm Eubothrium rugosum, a parasite of the burbot, Lota lota (L.), was studied by transmission electron microscopy for the first time. In addition, spermatozoon ultrastructure of Eubothrium crassum has been re-assessed. New is the finding, that the mature spermatozoa of both species of the genus Eubothrium exhibit essentially the same general morphology. They are filiform cells tapering at both extremities, and they possess the two axonemes with 9+“1” pattern of Trepaxonemata, attachment zones, a nucleus, cortical microtubules (CMs), electron-dense granules, and a single crested body. Structural polymorphism of the CBs has been found within the two Eubothrium species for the first time. The anterior ring of electron-dense tubular structures surrounding a single axoneme marks the border between the two defined regions, region I and region II of the spermatozoon. This unique feature has only been observed in the Bothriocephalidea. The anuclear axoneme region II of Eubothrium spermatozoa fluently verges into a nuclear region III. The posterior part of the spermatozoon contains one-axoneme, few CMs and a posterior extremity of the nucleus that subsequently disappears. The posterior extremity of the male gametes of the genus Eubothrium exhibits elements of a disorganized axoneme which characterize also spermatozoa of the family Triaenophoridae. Discussed are interspecific similarities and differences between the spermatozoa of the two Eubothrium species as well as between these and other Eucestoda.

Parole chiave

  • ultrastructure
  • spermatozoon
  • Eubothrium
  • Bothriocephalidea
  • Cestoda
access type Accesso libero

The notes on the occurrence of Longidorus poessneckensis Altherr, 1974 (Nematoda: Dorylaimida) in the Slovak Republic

Pubblicato online: 17 Dec 2010
Pagine: 264 - 268

Astratto

Abstract

The record of occurrence of Longidorus poessneckensis Altherr, 1974 in forest soils with Betuleto-Carpineto-Quercetum in geographically specific conditions of a hilltop contributes to the broadening of ecological knowledge about this species. To date, the species was considered to prefer the habitats along river banks — narrow or large valleys and plains. The ecological, morphometrical and molecular characteristics of recorded L. poessneckensis are presented here.

Parole chiave

  • Longidorus poessneckensis
  • ecology
  • morphology
  • molecular characteristic
  • Slovak Republic
access type Accesso libero

The effects of flubendazole and its metabolites on the larval development of Haemonchus contortus (Nematoda: Trichostrongylidae): an in vitro study

Pubblicato online: 17 Dec 2010
Pagine: 269 - 272

Astratto

Abstract

The anthelmintic effects of flubendazole (FLU), its two main metabolites reduced flubendazole (FLU-R) and hydrolyzed flubendazole (FLU-H), and thiabendazole (TBZ) were compared using an in vitro larval development test in two isolates of Haemonchus contortus, a fully susceptible isolate (HCS) and a multi-resistant isolate (HCR). Results were quantified as 50 % lethal concentration (LC50), 99 % lethal concentration (LC99), efficacy factor (EF), and resistance factor (RF). For HCS, both LC50 and LC99 of FLU were lower than those of the reference TBZ. The anthelmintic activity of FLU-R in HCS and HCR was 13 and 6 times lower than the activity of FLU, respectively. The anthelmintic activity of FLU-H was negligible (approximately 363–853 times lower) compared to that of FLU. Although a marked resistance of the HCR isolate to TBZ was confirmed, only a low tolerance to FLU-R and slightly higher tolerance to FLU were found.

Parole chiave

  • benzimidazoles
  • biotransformation
  • anthelmintic resistance
  • larval development test
access type Accesso libero

First record of Schulmanela petruschewskii Shulman, 1948 (Nematoda: Capillariidae) from cultured Rainbow trout (Oncorhynchus mykiss) in Turkey

Pubblicato online: 17 Dec 2010
Pagine: 273 - 275

Astratto

Abstract

The nematode Schulmanela petruschewskii (Shulman, 1948) was identified during the parasitological examination on the liver parenchyma in one specimens of a cultured rainbow trout (Oncorhynchus mykiss) which reared in Derbent Dam Lake in Samsun, Turkey (41°25′6′’ North latitude, 35°49′52′’ East longitude) in August 2008. This parasite species was not previously reported from Turkey. With the present study we report S. petruschewskii for the first time in Turkey. This specimen which is a parasite of cultured rainbow trout (Oncorhynchus mykiss) is a new record for the Turkish parasite fauna. Original measurements and figures are presented.

Parole chiave

  • Schulmanela petruschewskii
  • Oncorhynchus mykiss
  • Turkey

Pianifica la tua conferenza remota con Sciendo