Effects of single or trickle Haemonchus contortus experimental infection on digestibility and host responses of naïve Creole kids reared indoor

The objective of this study was to compare the effects of the type of Haemonchus contortus experimental infection (trickle infection, TI versus single infection, SI) on feed intake, nutrients digestibility, parasitological and haematological measures, and plasma leptin in Creole kids. The animals we...

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Bibliographic Details
Published in:Veterinary parasitology 2013-01, Vol.191 (3-4), p.284-292
Main Authors: Bambou, J.C., Cei, W., Camous, S., Archimède, H., Decherf, A., Philibert, L., Barbier, C., Mandonnet, N., González-García, E.
Format: Article
Language:English
Subjects:
Agricultural sciences
Animals
Diet
Digestibility
Digestion - physiology
Eating
Goat Diseases - blood
Goat Diseases - parasitology
Goats
Haemonchiasis - blood
Haemonchiasis - parasitology
Haemonchiasis - veterinary
Haemonchus
Haemonchus contortus
Housing, Animal
Immunity
Intake
Leptin - blood
Life Sciences
Parasite Egg Count
Parasitology - methods
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Summary:The objective of this study was to compare the effects of the type of Haemonchus contortus experimental infection (trickle infection, TI versus single infection, SI) on feed intake, nutrients digestibility, parasitological and haematological measures, and plasma leptin in Creole kids. The animals were infected over 2 periods (challenge 1 and challenge 2) of 6 weeks each, corresponding respectively to the primary and the secondary infection. Periods prior infection (1 week each) were considered as controls. The primary infection was realized with 35 Creole kids (18.40±3.76kgBW) housed in individual boxes and fed a hay-based diet. The secondary infection continued with 29 kids (21.90±3.40kgBW) from the initial 35. A total of 6 kids and 8 kids were slaughtered for measuring nematode burden at the end of the primary and the secondary infection, respectively. Measurements of nutrients digestibility were made at 0, 3 and 5 weeks post-infection for both challenges. Faecal egg count (FEC), blood eosinophilia and packed cell volume (PCV) were monitored weekly. Feed intake (dry matter intake, DMI) and nutrients digestibility were negatively affected by H. contortus infection only during the primary infection. Plasma leptin changed significantly over time (P=0.0002) but was not affected by the infection type. Effect of infection type was observed only on crude protein digestibility during the primary infection, which was lower in the TI group (P
ISSN:0304-4017
1873-2550
DOI:10.1016/j.vetpar.2012.09.026