caa a22 4500 465744141 CHVBK 20180323111815.0 cr unu---uuuuu 170327e19900301xx s 000 0 eng 10.1007/BF02243497 doi (NATIONALLICENCE)springer-10.1007/BF02243497 Experimental infection of N'Dama cattle with trypanosomes using Glossina palpalis gambiensis caught in the wild [Elektronische Daten] [R. Dwinger, P. Rawlings, P. Jeannin, A. Grieve] Infection Experimentale De Bovins N'Dama Avec Des Trypanosomes A l'Aide De Glossina Palpalis Gambiensis Capturees A l'Etat Sauvage Summary: The transmissibility of trypanosome infection to N'Dama cattle by tsetse flies caught in the field was examined. Wild-caughtGlossina palpalis gambiensis were transferred singly into small numbered cages and allowed to feed on 14 uninfected N'Dama cattle. Following a completed feed the tsetse were dissected and infection in the proboscis, the salivary glands and the gut was recorded. Each animal was bitten by a number of tsetse ranging from five up to 64 flies. Following dissection of the tsetse flies, seven of the cattle were found to have been bitten by a single infected tsetse, five by two, while the remaining two were each fed upon by three infected tsetse. The tsetse were harbouring eitherTrypanosoma vivax or a trypanosome species belonging to theNannomonas subgenus or both species. The experimental animals were monitored daily over a period of three months for the appearance of trypanosomes in the blood and for antibodies in their sera. Other parameters such as body temperature, local skin reactions, packed red cell volume and weight changes were also measured. Trypanosomes were first detected eight days after the infective bite. Only five of the 14 cattle became infected, of which three had been exposed to a single infected tsetse fly.Trypanosoma vivax was detected in one animal,Trypanosoma congolense in two cattle and mixed infections of both species in the remaining two animals. These findings show that N'Dama cattle can become infected with trypanosomes through the bite of a single infected tsetse fly under field conditions. However, only five (possibly eight) of the 23 infected tsetse were able to transmit the parasites successfully. Centre for Tropical Veterinary Medicine, 1990 Dwinger R. International Trypanotolerance Centre (ITC), PMB 14, Banjul, The Gambia aut Rawlings P. International Trypanotolerance Centre (ITC), PMB 14, Banjul, The Gambia aut Jeannin P. International Trypanotolerance Centre (ITC), PMB 14, Banjul, The Gambia aut Grieve A. International Trypanotolerance Centre (ITC), PMB 14, Banjul, The Gambia aut Tropical Animal Health and Production Kluwer Academic Publishers-Human Sciences Press 22/1(1990-03-01), 37-43 0049-4747 22:1<37 1990 22 11250 https://doi.org/10.1007/BF02243497 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02243497 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dwinger R. International Trypanotolerance Centre (ITC), PMB 14, Banjul, The Gambia aut NATIONALLICENCE 700 1- Rawlings P. International Trypanotolerance Centre (ITC), PMB 14, Banjul, The Gambia aut NATIONALLICENCE 700 1- Jeannin P. International Trypanotolerance Centre (ITC), PMB 14, Banjul, The Gambia aut NATIONALLICENCE 700 1- Grieve A. International Trypanotolerance Centre (ITC), PMB 14, Banjul, The Gambia aut NATIONALLICENCE 773 0- Tropical Animal Health and Production Kluwer Academic Publishers-Human Sciences Press 22/1(1990-03-01), 37-43 0049-4747 22:1<37 1990 22 11250 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer