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This paper determines whether tumour necrosis factor (TNF alpha) (a cytokine that is predominantly secreted by cells of the monocyte/macrophage lineage) production is induced during bovine trypanosomiasis and wheather or not production is correlated with disease. TNF alpha titres in plasma from B...
This paper determines whether contact between parasite-specific CD4+ T cells and CD8+ T cells is an essential requirement for helper function, additional experiments were performed using two-chamber culture plates incorporating semi-porous membranes. TpM were co-cultured with naive or immune CD8 ...
Techniques for in vivo depletion of lymphocytes using monoclonal antibodies have been well documented for murine systems. This model has played an important role in analysing the involvement of various lymphocyte subsets in several immune mechanisms. In mice 600 ug of Ab are generally injected in...
Presents results of a study of grazing behaviour and forage resources utilisation by herded cattle belonging to agropastoralists at Abet & Kurmin Biri in the subhumid zone of Nigeria as well time spent on walking, resting & watering. Subdivides grazing activities into natural range grazing, brows...
The grazing behaviour of Maasai cattle was influenced by season, area and grazing orbit. In a grazing day the cattle spent 1, 8, 14, 15 and 62 percent of their time drinking, ruminating, resting, walking and grazing respectively. The mean length of the grazing day of Maasai cattle is defined, as ...
Presents 3-year results testing weight losses of cattle on 2 or 4-hour dry season grazing of fodder banks, compared to controls, within ILCA's subhumid zone programme in Nigeria and observations on diet selection and grazing activity on fodder banks and natural range.
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