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Previous issue date: 2007-02-23 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico / The aim of this study was to investigate the prevalence of zoonotics parasites of dogs and cats in
soil of public squares at Serop?dica City in state of the Rio de Janeiro according to diagnostic
tests. All 25 registered squares of this city participated in this study being visited at least once.
Considering the soil area as rectangular, five soil samples were collected, with about 250g each
one. All fresh fecal samples of dogs and cats found during the visits were collected. In total were
125 soil samples submitted to Dunsmore et al. s technique (1984) and Adaptation of Rugai s
methods (CARVALHO et al., 2005) and 81 fecal samples were analyzed according to Willis',
Hoffman s and centrifuge- flotation techniques. The soil and feces samples were processed and
analyzed at the laboratory of Cocc?dios e Coccidioses PSA (EMBRAPA/UFRRJ). The ?2 test
with 5% of significance was made in Epinfo program 2002 to evaluate the association between
parasites prevalence and diagnostic tests used. Eggs of Ancylostomatids, Toxocarids, Trichuris
spp., Ascaris spp. and larvae of Ancylostomatids and Strongyloides spp. were detected in soil of
seven (28.00%) squares. The Adaptation of the of Rugai s method (CARVALHO et al., 2005), to
the soil s analysis, is more efficient than the Dunsmore et al. s technique (1984) because is
cheaper and easier to executed besides detecting eggs of Ancylostomatids (4.80%), Ascaris spp.
(1.60%), Trichuris spp. (2.40%), larvae of Ancylostomatids (8.80%) and Strongyloides spp.
(1.60%) and free living nematodes (36.80%), forms that were not detected by the Dunsmore et
al. s technique (1984). The prevalence of Toxocarids eggs was similar (p= 0.213) in both
techniques. In 92.50% of the 81 fecal samples collected was observed at least a parasite type in
one of the technique use. The most prevalent parasite in animals` feces was Ancylostomatids
(80.25%) following for Toxocarids (11.11%), cestoids (8.64%), Cryptosporidium spp. (7.41%)
and Trichuris spp. (6.17%). In 34.57% fecal were observed multiple infections by two or three
different types of parasites. The low prevalence of Ancylostomatids eggs in soil samples contrast
with the high prevalence observed in feces, suggesting that the environment conditions are not
favourable to the development and survival of its infectants forms, although it can be present in
fewer amount than those capable by the techniques used. The low prevalence of Toxocarids in
feces in comparison of Ancylostomatids, indicated that animals, which have access to those
places, are adults and not litter, which are the main responsible to spread Toxocarids eggs in the
environment. Although have been identified in feces, any cyst or protozoan oocyst was diagnosed
in soil sample indicating the necessity of diagnostic techniques efficient enough to detect such
parasites in soil. / Este estudo foi realizado com o objetivo de investigar a preval?ncia de parasitos zoon?ticos de
c?es e gatos em solo de pra?as p?blicas do Munic?pio de Serop?dica segundo t?cnicas de
diagn?stico. Todas as 25 pra?as registradas no munic?pio foram inclu?das no estudo sendo
visitadas uma ?nica vez. Considerando a ?rea de solo como retangular, foram coletadas cinco
amostras de solo com cerca de 250g cada uma. Todas as amostras fecais frescas de c?es e gatos
encontradas no momento da visita foram coletadas. Ao total foram 125 amostras de solo
submetidas ?s t?cnicas de Dunsmore et al. (1984) e a de Adapta??o do m?todo de Rugai
(CARVALHO, et al., 2005) e 81 amostras fecais analisadas segundo as t?cnicas de Willis,
Hoffman e centrifugo- flutua??o. As amostras de solo e fezes foram processadas e analisadas no
laborat?rio de Cocc?dios e Coccidioses do Projeto sanidade Animal (EMBRAPA/UFRRJ). O
teste do ?2 com 5% de signific?ncia foi realizado com aux?lio do programa Epinfo 2002 para
avaliar a associa??o entre as preval?ncias de parasitos e as t?cnicas de diagn?stico empregadas.
Ovos de Ancylostomat?deos, Toxocar?deos, Trichuris spp., Ascaris spp. e larvas de
Ancylostomat?deos e Strongyloides spp. foram diagnosticados no solo de sete (28,00%) pra?as. A
t?cnica de Adapta??o do m?todo de Rugai (CARVALHO et al., 2005), para an?lise do solo, foi
mais eficiente que a t?cnica de Dunsmore et al. (1984) visto que ? mais barata e de f?cil execu??o
al?m de detectar ovos de Ancylostomat?deos (4,80%), Ascaris spp.(1,60%), Trichuris spp.
(2,40%), larvas de Ancylostomat?deos (8,80%) e de Strongyloides spp. (1,60%) e nemat?ides de
vida livre (36,80%) formas que n?o foram detectadas pela t?cnica de Dunsmore et al. (1984). A
preval?ncia de ovos de Toxocar?deos foi similar (p= 0,213) nas duas t?cnicas. Em 92,50% das 81
amostras fecais foi observado pelo menos um tipo de parasito em uma das t?cnicas. Os
Ancylostom?deos foram os mais prevalecentes (80,25%) nas fezes dos animais, seguidos por
Toxocar?deos (11,11%) cest?ides (8,64%), Cryptosporidium spp. (7,41%) e Trichuris spp.
(6,17%). Em 34,57% das amostras fecais foram observadas infec??es m?ltiplas por dois e tr?s
g?neros de parasitos. A baixa preval?ncia de ovos de Ancylostomat?deos nas amostras de solo das
pra?as contrasta com a alta preval?ncia observada nas fezes, sugerindo que as condi??es
ambientais do local s?o inadequadas ao desenvolvimento e sobreviv?ncia de suas formas
infectantes, embora possam estar presentes em quantidades inferiores ?quelas capazes de serem
detectadas pelas t?cnicas utilizadas. J?, a baixa preval?ncia de Toxocar?deos nas fezes quando
comparada ? preval?ncia de Ancylostomat?deos indica que os animais que t?m acesso a essas
pra?as s?o adultos e n?o filhotes, principais disseminadores de ovos de Toxocar?deos. Embora
identificados nas fezes, nenhum cisto ou oocisto de protozo?rio foi diagnosticado nas amostras de
solo, indicando a necessidade do desenvolvimento de t?cnicas diagn?stico eficazes na detec??o
desses.
| Identifer | oai:union.ndltd.org:IBICT/oai:localhost:tede/749 |
| Date | 23 February 2007 |
| Creators | Pereira, Arisa Mandarino |
| Contributors | Pereira, Maria Julia Salim |
| Publisher | Universidade Federal Rural do Rio de Janeiro, Curso de P?s-Gradua??o em Ci?ncias Veterin?rias, UFRRJ, Brasil, Parasitologia Veterin?ria |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | Portuguese |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações da UFRRJ, instname:Universidade Federal Rural do Rio de Janeiro, instacron:UFRRJ |
| Rights | info:eu-repo/semantics/openAccess |
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