Data/hora: 13/06/2024 08:03:30

Biblioteca(s): | Embrapa Caprinos e Ovinos.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | Internacional - A
Data corrente: | 02/06/1998
Data da última atualização: | 11/12/2023
Autoria: | VIEIRA, L. da S.; LIMA, J. D.; SANTA ROSA, J.
Afiliação: | LUIZ DA SILVA VIEIRA, CNPC; JOSÉ D. LIMA, Universidade Federal de Minas Gerais; JANETE SANTA ROSA, CNPC.
Título: | Development of Eimeria ninakohlyakimovae Yakimoff & Rastegaieff, 1930 emend, Levine, 1961 in experimentally infected goats (Capra hircus).
Ano de publicação: | 1997
Fonte/Imprenta: | Journal of Parasitology, v. 83, n. 6, p. 1015-1018, Dec. 1997.
DOI: | https://doi.org/10.2307/3284354
Idioma: | Inglês
Conteúdo: | Abstract: The endogenous development and prepatent and patent periods of Eimeria ninakohlyakimovae were studied in 43 1-3-wk-old coccidia-free kids inoculated with 5.0 x 10(4), 1.5 x 10(5), 2.0 x 10(5), or 9.0 x 10(5) sporulated oocysts/kg. Twenty-five kids were killed at 24- or 48-hr intervals, 2-18 days after inoculation (DAI). Two generations of meronts, gamonts, gametes, and oocysts were found in sections stained with hematoxylin and eosin and examined using under light microscopy. The first generation of meronts developed in the endothelium of the lacteals, in the lamina propria, and in the lymphatic vessels of the ileum submucosa. Mature, first-generation meronts, 165.5 x 123.6 microm, were first found 10 DAI. Second-generation merogony developed in the crypt epithelial cells of the cecum and colon; mature meronts, 16.8 x 11.6 microm, were first seen 12 DAI. Gametogenesis occurred in the cecum and colon epithelium; mature microgamonts (16.1 x 13.0 microm), microgametes, macrogametes (14.7 x 12.5 microm), and oocysts (18.3 x 13.3 microm) were seen at 13 DAI. The course of the infection was followed in 18 kids examined every day until 24 DAI. The prepatent period was 14.7 (13-17) days and the patent period 6.8 (4-10) days. The sporulation time at 30 C, with constant aeration, was 2-3 days.
Palavras-Chave: | Aetiology; Desenvolvimento; Eimeria ninakohlyakimovae; Experimental infection; Gametes; Growth; Infeccao experimental; Mucosa intestinal.
Thesagro: | Caprino; Crescimento; Doença animal; Etiologia; Gameta.
Thesaurus Nal: | Animal diseases; Brazil; Cecum; Coccidiosis; Eimeria; Endothelium; Etiology; Gametogenesis; Goat diseases; Goats; Ileum; Intestinal mucosa; Parasitology.
Categoria do assunto: | H Saúde e Patologia
Registro original: | Embrapa Caprinos e Ovinos (CNPC)
Exemplares: | CNPC - (1185-1) - UPC - AP - PP - SP 04517 -  - SP 04517 - DIS