Abstract : Eighty four 7days old (Ross 308) broiler chicks were used to study the effect of addition
of soaked Prosopis seed on the performance and carcass characteristics. Four experimental diets
containing 0, 25%, 50% and 75%soaked Prosopis seed (SPS), replacing sesame cake and sorghum
partially. The experimental was in a completely randomized design (CRD) with four treatments, each
replicated three times with 7 chicks per each. Parameters evaluated were average body weight, average
body weight gain, average feed intake, average feed conversing ratio (FCR), carcass characteristics
as well as apparent nutrient digestibility. Results obtained showed that chicks fed on diets contained
(25, 50%of SPS) consumed more feed flowed by those on (25% SPS) and group (75%) consumed the
lowest feed. Where feed intake during the period of experimental was significantly (P<0.05) increase
with the increasing of SPS up to 50% induction in diets. For live body weight gains chicks in group
B (25%SPS) recorded significant (P<0.05) heaviest value in both parameters compared to other groups.
For feed conversion ratio (FCR), also chicks in group B (25%SPS) recorded the best value compared
to other groups. The economical study showed that SPS could be included in broiler diets up to 50%
without characteristics (P<0.05) effects due to the level of inclusion of SPS in broiler diets. It was
evident from the economical study that SPS could be included up to 50% in broiler diets without any
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