Details

Autor(en) / Beteiligte

• Cedillo, C.J.R.
• Martínez, M.J.J.
• Santacruz, A.M.
• Banda, R.V.M.
• Morales, S.E.

Titel

Models for experimental infection of dogs fed with tissue from fetuses and neonatal cattle naturally infected with Neospora caninum

Ist Teil von

• Veterinary parasitology, 2008-06, Vol.154 (1), p.151-155

Ort / Verlag

Netherlands: Elsevier B.V

Erscheinungsjahr

2008

Quelle

MEDLINE

Beschreibungen/Notizen

• Three models were designed to investigate the development and enteroepithelial phase of Neospora caninum in dogs, and to induce oocyst production by the parasite. In the first model, three dogs were fed raw fetal bovine tissue on two occasions. The bovine fetal tissue had been stored at 4 °C for 14 days and 16 days, respectively, and had tested positive for neosporosis using histopathology and immunohistochemistry. In the second model, nine dogs from the beginning of the experiment until euthanasia were fed portions of tissue from bovine fetuses that been stored at 4 °C for between 1 and 2 days. Three fetuses had tested positive for neosporosis using histopathology and immunohistochemistry. In the third model, three dogs were fed pieces of raw tissue from two neonatal calves that had not received colostrum, and which had tested positive for antibodies against N. caninum. The brains of these calves were positive for neosporosis by histopathology and immunohistochemistry. In all three models, none of the dogs excreted oocysts of N. caninum, developed intestinal parasites or seroconverted.