Abstract:

In smallholder zero grazing dairy systems of Uganda, elephant grass (Pennisetiun purpurenm) is
the main basal diet offered, and is supplemented with legume forages among others. Recent
observations indicate reduction in fodder yields of R purpureum although farmers are
cattie manure to improve soil fertility and hence increase fodder production. This study evaluated
the effect of legume supplementary feeding to dairy cattle offered R purpureuni basal diet on feed
intake, and the output and manuring qualityof the resultant faeces. Four diets consisting of P.
purpureum fodder fed ad libitum as a control, R purpiiremn •? Calliandra, I3, purpureuni + Centrosema
and R purpureuni + Desniodiuni were offered to cows in a 4 x 4 switchover Latin square design.
Legume supplementation increased (P<0.05) the total organic and dry matter, metabolisable
energy (ME) and nutrient intake, and the apparent dry matter digestibilities (ADMD) as compared
applying
with the control. Faecal excretion was increased by CaHiundra and Centrosema. Cows
which were supplemented with Calliandra excreted larger amounts of N, P and K than
cows fed either Centrosema or Desmodiuni. Supplementation with Calliandra proved to be better
option since it enhanced feed intake and the output and quality of faeces that could be recycled
within the crop-livestock production systems.