Chapter-06.05 Coccidian Parasites

2018 ◽  
pp. 479-483
Author(s):  
Apurba Sastry ◽  
Sandhya K
Keyword(s):  
Coccidian Parasites

STUDY ON SOME COCCIDIAN PARASITES INFECTING CERTAIN FISHES IN SAUDI ARABIA

1999 ◽  
Vol 3 (4) ◽  
pp. 173-195
Author(s):  
Abd-Allah Al-Hoot ◽  
Ahmed Abdel-Aziz ◽  
Mahrashan Abdel-Gawad ◽  
Atif EI-Toukhy
Keyword(s):  
Saudi Arabia ◽  
Coccidian Parasites

A new coccidian parasite (Apicomplexa: Eimeriidae: Eimeria) from the southern black racer, Coluber constrictor priapus (Reptilia: Ophidia: Colubridae) from Arkansas, USA

2018 ◽  
Vol 63 (3) ◽  
pp. 558-562
Author(s):  
Chris T. McAllister ◽  
John A. Hnida ◽  
Henry W. Robison
Keyword(s):  
Polar Granule ◽  
Stieda Body ◽  
Coccidian Parasite ◽  
Sporocyst Residuum ◽  
Coluber Constrictor ◽  
Coccidian Parasites ◽  
Oocyst Residuum

AbstractBetween April 2012 and October 2017, 18 southern black racers,Coluber constrictor priapus, were collected from nine counties of Arkansas (n= 13) and McCurtain County, Oklahoma (n= 5) and their faeces examined for coccidian parasites. One of 18 (6%)C. c. priapusharboured an eimerian that we describe here as new. Oocysts ofEimeria dunnisp. nov. were subspheroidal with a lightly pitted bi-layered wall measuring L × W 24.0 × 21.1 and L/W ratio of 1.2. A micropyle was absent but an oocyst residuum and polar granule were present. Sporocysts were ovoidal and measured 11.9 × 8.1 with L/W of 1.5. A Stieda body was present but substieda and parastieda bodies were absent. The sporocyst residuum was composed of medium-sized granules aligned along perimeter of sporocyst or in a dispersed mass. This represents the first valid eimerian reported from the southern black racer.

scholarly journals Evaluation of Neospora caninum-Associated Abortion in a Seroepidemiological Study of Cattles Using IFAT Method

2020 ◽  
Vol 1 (1) ◽  
pp. 7-10
Author(s):  
Seyed Razi Bahavarnia ◽  
Pedram Ahli ◽  
Arash Rasouli
Keyword(s):  
Neospora Caninum ◽  
Farming System ◽  
Chi Square ◽  
Related Risk ◽  
Coccidian Parasites ◽  
Chi Square Test ◽  
Relationship Of ◽  
Cattle Farms ◽  
The Relationship

Background: Neospora caninum is a cyst forming coccidian parasites and one of the important factors in abortion of cows and neurologic disease in dogs around the world. This study was conducted to investigate the seroprevalence of N. caninum in dairy cows of Tabriz city using immunofluorescence method and related risk factors. Methods: In this study conducted in 2018, 100 samples from industrial cattle farms and 100 samples from traditional cattle farms of Tabriz were randomly collected. By fixing tachyzoites cultured in a culture medium, the kit was prepared in this study and the slides were examined by fluorescence microscopy (Zeiss). The results obtained in relation to the study variables (type of farming system, age, contact with dogs, and abortion history) were analyzed using SPSS software and chi-square test. Results: Neospora caninum antibodies were detected in 33 samples (16.5%). The relationship of positive serums with abortion and contact with dogs was significant statistically (P<0.05). Conclusions: Due to the significant relationship of infection rate in cows with abortion history and contact with dogs, further studies are needed to determine the exact role of Neospora in abortion of cows.

scholarly journals Oocyst wall formation and composition in coccidian parasites

2009 ◽  
Vol 104 (2) ◽  
pp. 281-289 ◽  
Author(s):  
Kelly Mai ◽  
Philippa A Sharman ◽  
Robert A Walker ◽  
Marilyn Katrib ◽  
David De Souza ◽  
...  
Keyword(s):  
Oocyst Wall ◽  
Wall Formation ◽  
Coccidian Parasites

scholarly journals High Exposure to Toxoplasma gondii and Neospora Spp. in Donkeys in Israel: Serological Survey and Case Reports

Animals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1921
Author(s):  
Sharon Tirosh-Levy ◽  
Amir Steinman ◽  
Avital Minderigiu ◽  
Ori Arieli ◽  
Igor Savitski ◽  
...  
Keyword(s):  
Toxoplasma Gondii ◽  
Case Reports ◽  
Palestinian Authority ◽  
Serum Samples ◽  
High Exposure ◽  
Economic Implications ◽  
Animal Shelters ◽  
Source Of Infection ◽  
High Prevalence ◽  
Coccidian Parasites

Toxoplasma gondii and Neospora spp. are closely related cyst-forming coccidian parasites, which infect various animal species and have considerable zoonotic and economic implications, respectively. Both parasites are endemic in Israel and have been reported to infect wild and domestic animals. This study was conceived to evaluate the serologic exposure of donkeys to these parasites. Serum samples were collected from 98 donkeys. Half of them (n = 49) were from animal shelters in Israel, and the rest (n = 49) were working donkeys from the Palestinian Authority. The donkeys were screened for the presence of anti-Toxoplasma and anti-Neospora antibodies by immunofluorescence antibody tests (IFATs). The seroprevalence of T. gondii and Neospora spp. was 94% and 70%, respectively, and 69% of the donkeys were exposed to both parasites. In addition, N. caninum tissue cysts were documented in two donkeys during post-mortem examination. This is the first report of the exposure of donkeys to T. gondii and Neospora spp. in the area. The high prevalence found in this study suggests that donkeys may have a role in the maintenance of these parasites in the area, thus serving as a source of infection for the definitive hosts.

scholarly journals Toxoplasma gondii and Neospora caninum infections in synanthropic rodents from Argentina

2019 ◽  
Vol 28 (1) ◽  
pp. 113-118 ◽  
Author(s):  
Andrea Dellarupe ◽  
Bruno Fitte ◽  
Lais Pardini ◽  
Lucía María Campero ◽  
Mariana Bernstein ◽  
...  
Keyword(s):  
Toxoplasma Gondii ◽  
Neospora Caninum ◽  
Rattus Rattus ◽  
Wide Distribution ◽  
Type I ◽  
Type Ii ◽  
Caninum Infection ◽  
Coccidian Parasites ◽  
Rats And Mice ◽  
Synanthropic Rodents

Abstract Toxoplasma gondii and Neospora caninum are closely related coccidian parasites (phylum Apicomplexa). This is the first study from urban synanthropic rodent species that involved serological and molecular diagnosis of T. gondii and N. caninum infection, and genotyping of T. gondii in Argentina. A total of 127 rodent samples were trap captured: Mus musculus (n = 78), Rattus norvegicus (n = 26) and Rattus rattus (n = 23). Antibodies against T. gondii and N. caninum were detected by IFAT in 32.8% (40/122) and 0.8% (1/122) of rodent samples, respectively, demonstrating contact with these protozoans. Additionally, T. gondii DNA was detected in 3.3% (4/123) of rodent central nervous system samples and 2 samples were genotyped by multilocus nPCR-RFLP. Neospora caninum DNA was not detected by PCR. The 2 genotyped samples were type III allele for all markers except for SAG-1 (type I for Rat1Arg and type II/III for Rat2Arg) and were identified as #48 and #2 (likely) according to the allele combinations reported on Toxo DB (Toxo-DB). The results of the present study revealed a wide distribution of T. gondii and less for N. caninum, in synanthropic rats and mice in the studied area.

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