Eimeria species in young and adult sheep raised under intensive and/or semi-intensive systems of a herd from Umuarama city, Parana State, Brazil
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2013-11
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Resumo
The present study aimed to identify Eimeria species
in young and adult sheep raised under intensive and / or semiintensive
systems of a herd from Umuarama city, Parana State,
Brazil using the traditional diagnostic methods and to correlate
the infection level/types of infection in the different age/system in
this herd. Fecal samples were collected from the rectum of 210
sheep and were subjected to laboratory analysis to differentiate
the species. Furthermore, animals were observed to determine
the occurrences of the clinical or subclinical forms of eimeriosis.
Out of the 210 collected fecal samples, 147 (70%) were positive
for Eimeria oocysts, and 101 (47.86%) belonged to young animals
that were raised under intensive and / or semi-intensive farming
systems. Oocysts from 9 species of Eimeria parasites were identifi ed
in the sheep at the following prevalence rates: E. crandallis, 50.0%;
E. parva, 21.6%; E. faurei, 8.1%; E. ahsata, 8.1%; E. intricata,
5.4%; E. granulosa, 2.7%; E. ovinoidalis, 2.0%; E. ovina, 1.3%;
and E. bakuensis, 0.6%. There were no differences regarding the
more frequent Eimeria species among the different ages of animals
or between the different farming management systems. Based
on these data, E. crandallis was the most prevalent, followed
by E. parva and E. faurei species, regardless of the age. Higher
parasitism was diagnosed in the young animals that were raised in a
confi nement regime, and the disease found in the herd was classifi ed
as subclinical. Further studies should be conducted in this herd, to
verify if the eimeriosis subclinical can cause damage especially in
young animals with a high level of infection.
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Palavras-chave
Coccídeos, Eimeriose, OoPG, Ovinos, Sheep
Citação
LOPES, Welber Daniel Zanetti; BORGES, Fernando de Almeida; FAIOLLA, Thais de Paula; ANTUNES, Liliane Tada; BORGES, Dyego Gonçalves Lino; RODRIGUEZ, Fernando de Souza; FERRARO, Gisela; TEIXEIRA, Weslen Fabricio; MACIEL, Willian Giquelin; FELIPPELLI, Gustavo; COSTA, Alvimar José da; PEREIRA, Valdomiro; MARTINEZ, Antônio Campanha. Eimeria species in young and adult sheep raised under intensive and/or semi-intensive systems of a herd from Umuarama city, Parana State, Brazil. Ciência Rural, Santa Maria, v. 43, n. 11, p. 2031-2036, Nov. 2013.