Intake and digestibility of feed in lamb of Sumatera composite breed when the commercial concentrate diet were substituted by gliricidia (Gliricidia maculata) and rice bran

Abstract

The study was conducted to evaluate the effect of feeding under village condition for Sumatera composite breed. Sumatera composite breed is sheep breed created in Balai Penelitian Ternak Bogor, a crossed bred between Sumatera local sheep and St croix and cross bred between local Sumatera breed with Barbados Blackbelly sheep. The feeding evaluated consist of control diet (K)and treatment diet under village condition (T). In treatment diet K lambs were fed on with King grass adlibitum suplemented with 400 g/head/day concentrate comercial with protein content 16%, while treatment diet T the lambs were fed on King grass and gliricidia mixture in equal amount and offered adlibitum and suplemented with rice bran. This study used 20 head composite sheep breed male lamb and 10 head Barbados crossed male lamb as control. Parameters recorded were feed consumption and feed digestibility. Data obtained was analysed using GLM method from SAS. Result from this study showed that dry matter intake between treatments was not significantly different. Digestibility of organic matter (OM) and crude protein (CP) was similar between treatment K and T (average 65.79% and 64.45% respectively for DM and CP digestibility). DM (dry matter), NDF (neutral detergent fibre) and ADF (acid detergent fibre) digestibility was higher in treatment K than T. Total DMI was higher in breed BC than in Composite breed, however there was no significant different between breed in nutrient digestibility. It can be concluded that substitution of commercial concentrate with gliricidia and rice bran reduced the digestibility DM, NDF and ADF.