INFECÇÃO POR Strongyloides westeri EM POTRO

2021 ◽  
Author(s):  
Marisa Rodrigues Borges Mendonça ◽  
Larissa Carla Bezerra Costa E Silva ◽  
JUCIANA APARECIDA NASCIMENTO SILVA ◽  
Profa. Dra. Muriel Magda Lustosa Pimentel ◽  
Gilsan Aparecida de Oliveira ◽  
...  
Keyword(s):  
Strongyloides Westeri

scholarly journals Мікробоносійство личинок Strongyloides westeri

2017 ◽  
Vol 19 (73) ◽  
pp. 3-6
Author(s):  
V.O. Yevstafieva ◽  
I.N. Shendryk ◽  
Yu.A. Gugosyan
Keyword(s):  
The Body ◽  
Genus Bacillus ◽  
Nutrient Media ◽  
Experimental Animals ◽  
Nematode Larvae ◽  
Cultural Properties ◽  
Strongyloides Westeri

The associations of parasites in animals are diverse both in taxonomic respect (helminthes, protozoa, viruses, bacteria) and due to pathology caused by them. Strongyloides are often associated with parasitocenosis of animals, forming close symbiotic links with pathogens of infections. Penetrating into the body percutaneous or alimentary, larvae of helminthes inoculate bacteria and viruses, thereby complicating the course of diseases. In order to study the probability of persistence of microorganisms in the body of Strongyloides westeri larvae, larva homogenate was sown to nutrient media. Isolated microorganisms differed in terms of appearance, pigmentation and cultural properties, forming on colonies of S- and R-forms on dense nutrient media. In the broth, turbidity was detected, the formation of a precipitate and a film on its surface. Bacteriological studies of Strongyloides westeri homogenate larvae identified 7 cultures of microorganisms that were identified as representatives of the families: Enterobacteriaceae (genera Enterobacter, Escherichia, Klebsiella, Proteus) Micrococcaeae (genus Streptococcus, Staphylococcus) Bacillaceae (genus Bacillus). In the homogenate samples of larvae of all experimental animals (100%), bacteria of genera were found: Enterobacter, Escherichia, Klebsiella, Bacillus, Staphylococcus, 60% identified bacteria of the genus Proteus, 20% of the genus Streptococcus. The conducted studies established the parasitocenotic connections of Stongyloides westeri larvae and the microorganisms of seven different genera belonging to three families. The results of the studies confirm the ability of nematode larvae of the species Strongyloides westeri to be bacterial reservoirs. Helminthes is one of the probable ways of getting microorganisms into the body of a receptive host.

Efficacy of ivermectin paste against Strongyloides westeri in foals

1985 ◽  
Vol 117 (8) ◽  
pp. 169-170 ◽  
Author(s):  
W. Ryan ◽  
P. Best
Keyword(s):  
Strongyloides Westeri

EFFICIENCY OF ANTIPARASITIC DRUG IVERPRADAG IN THE TREATMENT OF PARASITOSES OF HORSES

2018 ◽  
Vol 1 (1) ◽  
pp. 110-113
Author(s):  
D. I. Ruban ◽  
◽  
I. G. Glamazdin ◽  
D. I. Udavliev ◽  
M. D. Mamedberdyeva ◽  
...  
Keyword(s):  
Body Weight ◽  
High Efficiency ◽  
Active Principle ◽  
Parascaris Equorum ◽  
High Effectiveness ◽  
Antiparasitic Drug ◽  
Anoplocephala Perfoliata ◽  
Prevention And Treatment ◽  
Setaria Equina ◽  
Strongyloides Westeri

The article provides information about the new preparation Iverpradag, developed by the firm "Gudratli lukman" (Turkmenistan), which is being tested in Russian Federation and Turkmenistan, intended for the prevention and treatment of parasitosis in horses. The active principle of the developed preparation is widely known and very effective ivermectin and praziquantel (in complex). Studies conducted in Russia and Turkmenistan showed high effectiveness of the drug against nematodes including Delafondia vulgaris, Alfortia edentatus, Dictyocaulus arnfieldi, Parascaris equorum, Strongylus equinus, Strongyloides westeri, Setaria equina, and cestode, including Anoplocephala magna, Anoplocephala perfoliata and Paranoplocephala mamillana, as well as against gastric larvae (Gastrophilus spp.) parasitizing in horses. The conducted studies showed high efficiency of the drug Iverpradag in the form of paste when applied at the rate of 1 dose (0,9 ml) per 100 kg of body weight.

scholarly journals Monitoring of anthelmintic resistance in small strongyles in the Czech Republic in the years 2006–2009

2013 ◽  
Vol 82 (3) ◽  
pp. 243-248
Author(s):  
Štěpán Bodeček ◽  
Eva Vavrouchová
Keyword(s):  
Czech Republic ◽  
Anthelmintic Resistance ◽  
Drug Resistant ◽  
The Czech Republic ◽  
Parascaris Equorum ◽  
Reduction Test ◽  
Anoplocephala Perfoliata ◽  
Faecal Egg Count ◽  
Pre Treatment ◽  
Strongyloides Westeri

The aim of the field study performed in 2006 was to investigate the occurrence and distribution of intestinal helminths in horses based on pre-treatment faecal egg counts. In total, 948 horses bred on 37 farms were tested. Thirty six (97.2%) farms tested were positive for cyathostomins; horses in 9 (24.3%), 6 (16.2%) and 1 (2.7%) different herds tested were positive for Parascaris equorum, Anoplocephala perfoliata and Strongyloides westeri, respectively. In 21 herds, 344 horses with values exceeding 100 eggs per gram were included in the trial for the presence of drug resistant cyathostomins by a faecal egg count reduction test. Horses were treated orally with recommended doses of fenbendazole and ivermectin. Resistance to fenbendazole was detected on 20 farms (95.24%) with values of faecal egg count reduction test ranging from 0 to 90%. Ivermectin remained effective in all tested herds with the value of faecal egg count reduction test 96–100%. In autumn 2008, 178 horses on 10 farms were examined. Of these, only seven horses tested were negative for cyathostomins. One farm was tested positively for Anoplocephala perfoliata, and one for Parascaris equorum. In spring 2009, six farms were examined, four of which were the same farms as in 2006. We found a decreased number of eggs per gram in all horses, but an increase in benzimidazole resistance, which was found in 5 farms out of 6 (faecal egg count reduction test 15.2–84.6%). This is the first wide survey in horses from the Czech Republic. Based on this study, we can conclude that benzimidazole resistant cyathostomins in horses are widespread but ivermectin is still fully effective.

scholarly journals Mortalidade em potros associada ao parasitismo por Strongyloides westeri

2012 ◽  
Vol 32 (5) ◽  
pp. 401-404 ◽  
Author(s):  
Ricardo B. Lucena ◽  
Rafael A. Fighera ◽  
Claudio S.L. Barros
Keyword(s):  
Lamina Propria ◽  
Strongyloides Westeri

É descrito um surto da infecção por Strongyloides westeri em potros. Cinco de seis potros recém desmamados desenvolveram diarreia, perda de peso, hipoalbuminemia e anemia. Grande número de ovos de nematódeos foi detectado nas fezes de dois desses potros. Três potros morreram naturalmente e um quarto foi eutanasiado in extremis. Os achados de necropsia em três potros consistiam de edema subcutâneo, ascite, hidrotórax e petéquias na mucosa do duodeno. Histologicamente, as alterações eram restritas à mucosa do duodeno e caracterizadas por atrofia das vilosidades e infiltrado inflamatório linfoplasmocítico na lamina propria. Múltiplas pequenas cavidades preenchidas por parasitas nematódeos e ovos embrionados ocorriam na ponta das vilosidades duodenais. Com base na epidemiologia, nas características morfológicas dos nematódeos e nos achados de necropsia no três potros necropsiados, um diagnóstico de infecção por S. westeri foi feito.

Strongyloides westeri worm and egg counts in naturally infected young horses

2017 ◽  
Vol 248 ◽  
pp. 1-3 ◽  
Author(s):  
F.L. Miller ◽  
J.L. Bellaw ◽  
E.T. Lyons ◽  
M.K. Nielsen
Keyword(s):  
Young Horses ◽  
Strongyloides Westeri

scholarly journals Strongyloides westeri and Parascaris equorum: Observations in field studies in Thoroughbred foals on some farms in Central Kentucky, USA

2014 ◽  
Vol 51 (1) ◽  
pp. 7-12 ◽  
Author(s):  
E. Lyons ◽  
S. Tolliver
Keyword(s):  
Parasitic Nematode ◽  
Geographical Area ◽  
Field Tests ◽  
Nematode Species ◽  
Field Studies ◽  
Current Data ◽  
Prevalence Study ◽  
Parascaris Equorum ◽  
Strongyloides Westeri ◽  
Thoroughbred Foals

Abstract Observations were made on the intestinal threadworm (Strongyloides westeri) and ascarid (Parascaris equorum) in field studies in 373 Thoroughbred foals on nine farms in Central Kentucky (USA) in 2013. Qualitative examination was made of feces of the foals for presence of S. westeri and P. equorum eggs. The main purpose of the prevalence study was to obtain current data on S. westeri in Thoroughbred foals. This was done to compare these findings with earlier studies in this geographical area where the prevalence of this parasite has been very low the last several decades. All the foals except on one farm had been treated one or more times with a parasiticide before the study. Prevalence of S. westeri in foals was 0 to 3 % on two farms, 6 to 9 % on three farms, and 20 to 51 % on four farms. The prevalence of P. equorum in foals was 0 to 14 % on three farms, 27 to 38 % on three farms, and 46 to 51 % on three farms. Effect of drugs given before the current study, on the prevalence of the two parasitic nematode species, is discussed. Also, three field tests were done by the present authors to evaluate activity of three individual or combination of drugs against ascarids. Evaluation was somewhat limited because, on two of the farms, a relatively small number of foals was passing ascarid eggs before treatment. However, oxibendazole and oxibendazole/piperazine combination were much more efficacious than fenbendazole.

scholarly journals Helminth infections in Italian donkeys: Strongylus vulgaris more common than Dictyocaulus arnfieldi

2021 ◽  
Vol 95 ◽  
Author(s):  
F. Buono ◽  
F. Veronesi ◽  
L. Pacifico ◽  
C. Roncoroni ◽  
E. Napoli ◽  
...  
Keyword(s):  
Herd Size ◽  
Parasite Control ◽  
Sedimentation Technique ◽  
Helminth Infections ◽  
Strongylus Vulgaris ◽  
Faecal Samples ◽  
Flotation Method ◽  
The Mean ◽  
Living Area ◽  
Strongyloides Westeri

Abstract Donkeys have been used as working animals for transport and farm activities worldwide. Recently, in European countries, there has been an increasing interest in donkeys due to their use as pets, onotherapy or milk production. During 2014–2016, a countrywide survey was conducted to determine prevalence and risk factors of principal helminth infections in 1775 donkeys in 77 Italian farms. A questionnaire on management and parasite control practices was filled out for each farm. Faecal samples were examined using a modified McMaster technique, a centrifugation/flotation method and a sedimentation technique. Pooled coprocultures were performed for differentiation of strongylid eggs. Strongyles were the most common parasites detected (84.9%), followed by Dictyocaulus arnfieldi (6.9%), Oxyuris equi (5.8%), Parascaris spp. (3.6%), Anoplocephala spp. (1.0%), Strongyloides westeri (0.3%). Coprocultures revealed an omnipresence of cyathostomins (100%), followed by Strongylus vulgaris (31.0%), Poteriostomum spp. (25.0%), Triodontophorus spp. (9.0%), Strongylus edentatus (7.0%), Strongylus equinus (5.0%). Logistic regression analysis identified breed, co-pasture with horses, living area, herd size and number of treatments as significantly associated with strongyles. Sex, age, living area and herd size were significantly associated with Parascaris spp. Dictyocaulus arnfieldi was significantly associated with sex, grass, co-pasture with horses, living area and herd size. Strongylus vulgaris was significantly associated with living area and herd size. The mean number of anthelmintic treatments/year was 1.4; most of the donkeys (71.8%) were dewormed using an ivermectin drug. It is important to design parasite programs to specifically address both D. arnfieldi and S. vulgaris in donkeys, and this is especially important if donkeys co-graze with horses.

Sign in / Sign up

Export Citation Format

Share Document