Article (Scientific journals)
Effects of an experimental Trypanosoma congolense infection on the reproductive performance of West African Dwarf goats.
Faye, Dethie; Sulon, Joseph; Kane, Yaghouba et al.
2004In Theriogenology, 62 (8), p. 1438-51
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Keywords :
Abortion, Veterinary/parasitology; Animals; Animals, Newborn; Birth Weight; Estrus Synchronization; Female; Glycoproteins/blood; Goat Diseases/parasitology/physiopathology; Goats; Pregnancy; Pregnancy Proteins/blood; Premature Birth/parasitology/veterinary; Progesterone/blood; Reproduction; Trypanosoma congolense; Trypanosomiasis, African/blood/physiopathology/veterinary
Abstract :
[en] Thirty-six West African Dwarf (WAD) goats were used to assess the effects of an experimental Trypanosoma congolense infection on their reproductive system. Estrous cycles were synchronised and when confirmed pregnant (n = 31), the does were randomly allocated into control and trypanosome-infected groups. After infection, the animals were carefully observed till parturition. Trypanosome infection caused an increase of rectal temperature, a significant drop in PCV (infected: 23.3 +/- 0.3%; control: 28.5 +/- 0.4%; P < 0.0001) and abortions in 27.8% of the infected does. Kids born from infected does had a lower birth weight than kids born from control goats (0.9 +/- 0.1 kg versus 1.6 +/- 0.1 kg; P < 0.0001). Eight out of 13 kids (61.5%) that were born alive from infected does died during their first week of life. Plasma pregnancy-associated glycoprotein (PAG) and progesterone concentrations were lower in the infected animals than in the controls. In general, PAG concentration in does which aborted dropped before abortion. Our results revealed that artificial T. congolense infection affected reproductive performance of WAD goats with abortions, premature births and perinatal losses being observed. Neither transplacental transmission of T. congolense nor histopathological lesions of the placenta could be demonstrated.
Disciplines :
Veterinary medicine & animal health
Author, co-author :
Faye, Dethie
Sulon, Joseph ;  Université de Liège - ULiège > Département de sciences fonctionnelles > Physiologie de la reproduction
Kane, Yaghouba
Beckers, Jean-François  ;  Université de Liège - ULiège > Département de sciences fonctionnelles > Physiologie de la reproduction
Leak, Stephen
Kaboret, Yalacé ;  Université de Liège - ULiège > Département de morphologie et pathologie > Département de morphologie et pathologie
Melo de Sousa, Noelita ;  Université de Liège - ULiège > Département de sciences fonctionnelles > Physiologie de la reproduction
Losson, Bertrand ;  Université de Liège - ULiège > Département des maladies infectieuses et parasitaires > Parasitologie et pathologie des maladies parasitaires
Geerts, Stanny
Language :
English
Title :
Effects of an experimental Trypanosoma congolense infection on the reproductive performance of West African Dwarf goats.
Publication date :
2004
Journal title :
Theriogenology
ISSN :
0093-691X
eISSN :
1879-3231
Publisher :
Elsevier, New York, United States - New York
Volume :
62
Issue :
8
Pages :
1438-51
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 08 March 2010

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