Wyniki wyszukiwania

1

Oocyst production in multispecific eimerian infections in the Wyoming ground squirrel, Spermophilus elegans elegans

100%

Thomas D. M., Seville R. S., Stantom N. L.

Acta Parasitologica

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1992

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tom 37

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nr 3

We have investigated a stable assemblage of 6 species of Eimeria in the intestine of the Wyoming ground squirrel consisting of three abundant species (E. beecheyi, E. callospermophili and E. morainensis) and three rare species E. larimerensis, E. bilamellata and E. spermophili). To test the hypothesis that no interactions occur among these parasite species, five squirrels were inoculated with 12,500 oocysts consisting of 1 E. larimerensis, 10 E. bilamellata, 22 E. beecheyi and 67 % E. callospermophili. The proportion of each species in the output was quite different: 41 E. larimerensis, 5 E. beecheyi, 0 E. bilamellata and 54% E. callospermophili. When the same squirrels were reinoculated with 10,000 oocysts of 85 E. larimerensis, 7 E. beecheyi and 8% E. callospermophili, the output was 9 E. larimerensis, 13 E. beecheyi and 78% E. callospermophili. In the initial infections, the intrinsic rate of increase (r) for E. larimerensis was considerably higher than that of E. beecheyi or E. callospermophili. During the reinfections, (r) for E. larimerensis was significantly lower and for E. beecheyi and E. callospermophili significantly higher than initial values. Although E. larimerensis appears to have initially compromised the reproductive potential of its congenerics, acquired host immunity may have caused its reduced reproductive potential in the second trial.

2

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Mechanical transmission of Cryptosporidium parvum oocysts by flies

100%

Graczyk T. K., Grimes B. H., Knight R., Szostakowska B., Kruminis-Lozowska W., Racewicz M., Tamang L., Dasilva A. J., Myjak P.

Wiadomości Parazytologiczne

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2004

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tom 50

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nr 2

3

Coccidia in passerines from the Nevado de Toluca National Park, Mexico

86%

Medina J. P., Salgado-Miranda C., Garcia-Conejo M., Galindo-Sanchez K. P., Mejia-Garcia C. J., Janczur M. K., Gomes Lopes C. W., Berto B. P., Soriano-Vargas E.

Acta Parasitologica

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2015

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tom 60

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nr 1

4

Identification of a Cyclospora cayetanensis oocyst antigens and their validity in the detection of immunogenic patterns of cyclosporiasis patients

86%

Hussein E. M., El-Gayar E. K., Ismail O. A., Mokhtar A. B., Al-Abbassy M.

Acta Parasitologica

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2021

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tom 66

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nr 2

5

Evaluation of different oocyst DNA extraction methods for Cryptosporidium spp. research in environmental samples

86%

Moreira N. C., Cabrine-Santos M., de Oliveira-Silva M. B.

Acta Parasitologica

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2020

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tom 65

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nr 4

6

DNA isolation from Cryptosporidium oocysts directly from stool samples for diagnostic goals using PCR

86%

Sulima P.

Wiadomości Parazytologiczne

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1998

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tom 44

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nr 3

7

Evaluation of different techniques in the diagnosis of cryptosporidiosis in human and animals

86%

Werner A., Majewska A. C., Sulima P.

Wiadomości Parazytologiczne

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1998

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tom 44

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nr 3

8

Progress in the molecular methods for the detection and genetic characterization of Cryptosporidium in water samples

72%

Skotarczak B.

Annals of Agricultural and Environmental Medicine

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2010

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tom 17

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nr 1

1-8

9

PCR and real time PCR for the detection of Cryptosporidium parvum oocyst DNA

72%

Adamska M., Leonska-Duniec A., Maciejewska A., Sawczuk M., Skotarczyk B.

Folia Biologica

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2011

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tom 59

|

nr 3-4

10

Prevalence of subclinical coccidiosis in river buffalo calves of Southwest of Iran

72%

Bahrami S., Alborzi A. R.

Acta Parasitologica

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2013

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tom 58

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nr 4

Despite the importance of buffalo farming in Iran, little is known in this country about the abundance and distribution of Eimeria spp. in the animal species. The present study was designed to investigate the prevalence and species characterization of Eimeria oocysts in river buffalo calves of Khuzestan province, southwest of Iran. Of the total 108 fecal samples examined for Eimeria, 108 (100%) were found infected with 11 species of the parasite. Among the identified species of Eimeria, E. bovis was found to be the predominant etiological agent (76.85%), followed in order by E. canadensis (62.96%), E. zuernii (47.2%), E. ellipsoidalis (26.85%), E. subspherica (25.92%), E. brasiliensis (19.4%), E. auburnensis (18.51%), E. alabamensis (14.81%), E. pellita (11.1%), E. illinoisensis (5.5%) and E. bukidnonensis (2.7%). In most calves multiple infections with three species were present. While, 20.7% of calves showed heavy infection, 50.4 and 24.8% of calves showed weak and moderate infection, respectively. There was no significant difference in the OPG values between the calves of different localities. There was also no significant difference between the prevalence rate of infection in males and females. A total of 16.6% of all faecal samples were found to be diarrheic. A highly significant relationship could be identified between the occurrence of diarrhea and the level of E. bovis and E. zuernii oocysts excretion. Considering the pervasive occurrence and negative effects of the infection on the health condition and the growth performance of buffalo calves, infections should receive increased attention by both farmers and veterinarians.

11

Life cycle and biology of Neospora caninum

72%

Dubey J. P.

Wiadomości Parazytologiczne. Suplement

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2005

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tom 51

12

Adaptation and immunogenicity of Cryptosporidium parvum to immunocompetent mice

72%

Matsuo T., Tsuge Y., Umemiya-Shirafuji R., Fujino T.

Acta Parasitologica

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2014

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tom 59

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nr 1

The adaptation and immunogenisity of Cryptosporidium parvum isolated from Siberian chipmunks (SC1 strain) in immunocompetent (ICR) mice were examined. The oocysts were received to the severe combined immunodeficiency (SCID) mice by repeated passage. The oocysts collected from the 18th SCID mice were inoculated to 5 ICR mice. The mice began to shed oocysts from 6 days after inoculation, the patency was 5 days, and the maximum oocysts per gram of feces (OPG) value was 104. The maximum of OPG value was gradually increased by successive passage, and finally that in the 22nd mice reached 106 (patency: 11 days). It is considered that these results indicate completion of their adaptation to ICR mice. To examine the immunogenicity of C. parvum to ICR mice, 8 groups of 5 mice each were inoculated with 1.3 × 106 oocysts of SC1 strain, which were collected after adaptation to SCID mice. All groups shed oocysts from 6th day, and their patency was from 8 to 12 days. On the 21st day after the primary infection, these mice were challenged with 1.3 × 106 oocysts. No oocysts shed from any groups, although 2 control groups shed oocysts from the 6th day, and their OPG values were more than 106. These results suggest that this strain has strong immunogenicity against ICR mice. Therefore, the immunological healthy mice were considered a useful experimental model to investigate immunological and drug treatments in the strain of C. parvum.

13

Observations on oocyst development of Eimeria stiedai in rabbits

72%

Ball S. J., Pittilo M. R., Snow K. R.

Acta Parasitologica

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2014

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tom 59

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nr 3

The formation of the oocyst wall was examined in Eimeria stiedai in the bile duct epithelium of the rabbit and was found to follow the general eimerian pattern. However from the beginning of the formation of the outer layer of the oocyst wall the parasite was surrounded by a rarely reported veil membrane. Cell damage of the bile ducts at the gamogony stage of parasite development is depicted.

14

A note on the effect of caprylic acid and triacylglycerols of caprylic and capric acid on growth rate and shedding of coccidia oocysts in weaned piglets

72%

Marounek M., Skrivanova E., Skrivanova V.

Journal of Animal and Feed Sciences

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2004

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tom 13

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nr 2

269-274

15

Oocysts of six new Coccidiomorpha species from pinnipeds of King George Island (South Shetlands, Antarctic)

72%

Drozdz J.

Acta Protozoologica

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1987

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tom 26

|

nr 3

16

In vitro anticoccidial activity of olive pulp (Olea europaea L. var. Chemlal) extract against Eimeria oocysts in broiler chickens

72%

Debbou-Iouknane N., Nerin C., Amrane M., Ghemghar M., Madani K., Ayad A.

Acta Parasitologica

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2019

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tom 64

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nr 4

17

Endogenous stages of Choleoeimeria baltrocki [Daszak et Ball, 1991] n.comb. infecting the gall bladder of gold skink, Eumeces schneiderii Daudin, 1802 from Egypt

72%

AbdeL-Baki A. A. S., El-Fayomi H. M., Sakran T., Abdel-Haleem H. M.

Acta Parasitologica

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2009

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tom 54

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nr 2

85-89

Examination of 98 gold skink, Eumeces schneiderii Daudin, 1802 from Alexandria and Marsa-matroh Governorates, Egypt revealed oocysts of Choleoeimeria baltrocki (Daszak et Ball, 1991) n. comb. in the gall bladder and faeces. The prevalence of the infection was 40.8%. Sporulated oocysts were found in the faeces and the gall bladder contents. Sporulated oocysts were tetrasporocystic, cylindrical, reaching a mean of 38.7 (36–42) × 19.9 (17–25) μm with bilayered smooth and colourless wall. The dizoic sporocysts were subspherical and measuring 10.8 (9.5–13) × 9.3 (8–10.5) μm with a large globular sporocyst residuum. Sporocyst wall was bilayered joined by meridional suture. Sporozoites were crescent-shaped, blunt at one end and slightly tapered at the other. Endogenous stages (meronts, gamonts, gametes and young oocysts) were confined to the gall bladder epithelium and the infected cells were hypertrophied. Based on the morphological features of the exogenous stages and endogenous development of the present parasite, its generic affiliation was revised and placed into the genus Choleoeimeria.

18

A new species of Isospora Schneider, 1881 (Apicomplexa: Eimeriidae) from the Himalayan Black Bulbul Hypsipetes leucocephalus (Gmelin, 1789) (Passeriformes: Pycnonotidae)

72%

Jamriska J., Lopez F. J., Modry D.

Acta Protozoologica

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2012

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tom 51

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nr 1

19

Coprology of a single Northern white-breasted hedgehog (Erinaceus roumanicus): first report of Isospora rastegaievae in Poland

72%

Pyziel A. M., Jezewski W.

Acta Parasitologica

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2016

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tom 61

|

nr 3

20

Toxoplasma gondii infection of cats in epizootiological and clinical aspects

72%

Smielewska-Los E., Pacon J.

Polish Journal of Veterinary Sciences

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2002

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tom 05

|

nr 4

Ograniczanie wyników

Oocyst production in multispecific eimerian infections in the Wyoming ground squirrel, Spermophilus elegans elegans

Mechanical transmission of Cryptosporidium parvum oocysts by flies

Coccidia in passerines from the Nevado de Toluca National Park, Mexico

Identification of a Cyclospora cayetanensis oocyst antigens and their validity in the detection of immunogenic patterns of cyclosporiasis patients

Evaluation of different oocyst DNA extraction methods for Cryptosporidium spp. research in environmental samples

DNA isolation from Cryptosporidium oocysts directly from stool samples for diagnostic goals using PCR

Evaluation of different techniques in the diagnosis of cryptosporidiosis in human and animals

Progress in the molecular methods for the detection and genetic characterization of Cryptosporidium in water samples