African animal trypanosomiasis; Berenil index .; Diminazen-aceturate
Abstract :
[en] A longitudinal study was conducted within a cattle
ranch in Gabon to determine the diminazene aceturate (Berenil)
index (DAI) in a group of Zebu, raised under low tsetse density;
this measure providing an assessment of trypanosomiasis risk.
The objective was to evaluate the trypanosomiasis pressure thus
informing trypanosomiasis control methods and cattle management.
Twenty female adult Zebu were monitored for 24 weeks
during the dry season. Blood samples were collected on aweekly
basis and subjected to parasitological and haematological analysis
(n = 480), using the buffy-coat method and the packed cell
volume value (PCV), respectively, infected animals were treated
with a single intramuscular injection of diminazene aceturate
(8 mg/kg). Twenty-nine single infectious events were recorded
and a DAI of 1.45 was calculated. Two trypanosome species
were identified: Trypanosoma congolense (96.2%) and Trypanosoma vivax (3.8%). The mean PCV value of the infected
animals was lower (26.6) compared to non-infected animals
(32.0). This study shows that DAI may be a useful tool to assess
trypanosomiasis. However, this is a time-consumingmethod that
may be improved by using randomly selected sentinel animals to
adapt the chemoprophylactic schemes, hence decreasing the
costs and the drug resistance risk.
Disciplines :
Veterinary medicine & animal health
Author, co-author :
COSSIC, Brieuc; University of Edinburgh, > Edinburgh Medical School: Biomedical Sciences, > Biomedical Sciences, > 2017
ADJAHOUTONON, B
GLOAGUEN, P
DIBANGANGA, GL
MAGANGA, G
Leroy, Pascal ; Université de Liège > Département des productions animales (DPA) > Conseillers du Recteur
Picozzi, K
Language :
English
Title :
Trypanosomiasis challenge estimation using the diminazene aceturate (Berenil) index in Zebu in Gabon.
Publication date :
March 2017
Journal title :
Tropical Animal Health and Production
ISSN :
0049-4747
eISSN :
1573-7438
Publisher :
Kluwer Academic Publishers, Boston, United States - Massachusetts
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