THE EFFECT OF TRYPANOSOMA VIVAX INFECTION ON ENERGY AND NITROGEN METABOLISM AND SERUM METABOLITES AND HORMONES IN WEST AFRICAN DWARF GOATS ON DIFFERENT FOOD INTAKE LEVELS

摘要

Effects of Trypansoma vivax infection on nitrogen and energy metabolism and serum hormones and metabolites were measured using 24 castrated West African Dwarf bucks. In order to discriminate between the effect of infection and the effect of food intake level on energy and nitrogen balance, food quantity restriction was applied for isonutritional comparison; a number of the animals were not infected and served as controls. Daily dry-matter (DM) intake was measured, and energy and nitrogen balance for a 7-day period in weeks 2, 4 and 6 after infection. Weekly blood sampling for analysis of hormones and metabolites was carried out.