The growth performance and nutrient digestibility of pigs fed diets
containing rain tree pods (RPs) were evaluated using 20 pigs. Five diets
were formulated with RP replacing maize in the control diet at 10, 20, 30
and 40%. The pigs were randomly allotted to the 5 dietary treatments, with 4
replicates of one (1) pig per replicate, and fed ad libitum for eight weeks.
Data were collected on initial weight, final weight (FW), daily feed intake
(DFI), daily weight gain (DWG), feed conversion ratio (FCR), cost per
kilogram feed (CKF), and feed cost per kilogram weight gain. At week eight,
the pigs were moved into individual metabolic crates for a digestibility
trial. Rain tree pods, feed and fecal samples were analyzed for proximate
composition, and metabolic energy was calculated following standard
procedures. The apparent digestibility of dry matter, crude protein, ether
extract, ash, and nitrogen-free extract were calculated. Data generated were
analyzed using a one-way analysis of variance. The growth performance of
pigs fed a 10% RP diet was similar to those fed a control diet. As the
dietary inclusion of RP increased, the DFI, DWG and FW of the pigs decreased
(p<0.001). The FCR increased while CKF reduced significantly (p<0.001) with
an increasing level of RP in the diets. Apparent nutrient digestibility was
depressed (p<0.01) with the inclusion of RP in the diets of pigs. This study
concluded that the inclusion of 10% RP as a replacement for maize in the
diet of growing pigs gave optimal growth performance and reduced feed cost.