Coccidia of New World psittaciform birds (Aves: Psittaciformes): Eimeria ararae n. sp. (Apicomplexa: Eimeriidae) from the blue-and-yellow macaw Ara ararauna (Linnaeus).
In the New World, the avian order Psittaciformes comprises 142 species, yet to date only 3 (2%) of the species have been examined for coccidia, and from these only four species of Eimeria Schneider, 1875 have been described. In this study, a new coccidian species (Protozoa: Apicomplexa: Eimeriidae) obtained from the blue-and-yellow macaw Ara ararauna (Linnaeus) is reported from Brazil. Oöcysts of Eimeria ararae n. sp. are ovoidal, measure 28.7 × 20.2 μm and have a smooth, bi-layered wall c.1.1 μm thick. Both micropyle and oöcyst residuum are absent, but polar granules are present. Sporocysts are ovoidal and measure 17.0 × 8.3 µm, with knob-like, prominent Stieda body and sporocyst residuum is composed of granules; sub-Stieda body is absent. Sporozoites are vermiform with one refractile body and a nucleus. This is the fifth description of an eimerid coccidian infecting a New World psittaciform bird.
Programa de Pós-graduação em Ciência, Tecnologia e Inovação em Agropecuária, Universidade Federal Rural do Rio de Janeiro (UFRRJ), BR-465 km 7, Seropédica, RJ, 23897-970, Brazil.
Bruno
B
do Bomfim Lopes
Bruno Pereira
BP
Berto
Lianna Maria
LM
de Carvalho Balthazar
Cleide Domingues
CD
Coelho
Daniel Medeiros
DM
Neves
Carlos Wilson Gomes
CW
Lopes
D000818:Animals; D001715:Bird Diseases / Q000469:parasitology*; D001938:Brazil; D003048:Coccidiosis / Q000469:parasitology / Q000662:veterinary*; D004539:Eimeria / Q000145:classification* / Q000166:cytology*; D005243:Feces / Q000469:parasitology; D006790:Host-Parasite Interactions; D033661:Oocysts / Q000166:cytology; D010311:Parrots / Q000469:parasitology*; D013045:Species Specificity; D034101:Sporozoites / Q000166:cytology