Popis: |
Trypanosomiasis is one of the most important problems to man and his livestock. The in vitro Trypanosoma congolense activity of sera from some ruminants viz: West African dwarf goat, Red Sokoto goat, Sahel goat, Yankassa sheep, Uda sheep, Balami sheep, N’Dama cattle, Sokoto Gudali cattle, Friesian cross/Bunaji cattle, White Fulani cattle was investigated. Blood samples from the donor ruminants were screened for trypanosomes using the thick film and haematocrit centrifugation technique (HCT). Trypanosoma congolense was suspended in RPMI supplemented with FCS. After the addition of each test serum, the motility of the parasite was used as index of viability. None of the sera from the selected small ruminants exhibited any anti-trypanosomal activity against T. congolense in vitro. Their survival times were all significantly higher (p |