SECTION A: AGRICULTURAL AND HOME SCIENCES
Nutrient intake and digestibility of common Agro-industrial by-products (Maize bran, MZB; Wheat offal WOF and Rice bran RCB) were evaluated with twelve West African Dwarf (WAD) rams of 18kg average body weight. The animals were randomly allocated to three experimental treatments consisting of sole MZB, WOF and RCB. Animals were housed in individual metabolism crates where the quantities of feed intake, faecal and urinary outputs were monitored. Ten percent (10%) aliquot of the total faeces and urine were collected quantitatively and bulked for each animal. The results showed that dry matter of the experimental treatments ranged from 83.30 – 90.00%, RCB had the highest value (90.00%) followed by WOF (86.00%) and MZB (83.30%). Crude protein values recorded were 11.43, 10.39 and 9.42% in WOF, RCB and MZB respectively. There was a significant difference (P<0.05) of feed and water intake across the treatments. Rams fed WOF diet had highest (P<0.05) feed intake, followed by animals fed RBC and MZB with 450, 200 and 150g/day respectively. Animals placed on RCB were significantly higher (P<0.05) in all the physiological status of the nutrients considered than animals fed MZB. Rams placed on MZB and RCB had highest (P<0.05) digestibility coefficients of CP, ADF and NDF. Nitrogen retention percentage was significantly higher (P<0.05) in rams fed WOF followed by RCB (64.33%) and least MZB (56.48%). Conclusively, MZB, WOF and RCB contain nutrients in proportion required by sheep and thus, can be effectively incorporated into the sheep ration. It was recommended that these feedstuffs should be given to WAD sheep together with other feed ingredients, in particular forages so as to improve their digestibility.
Keywords: Agro-industrial Products, Digestibility, Nutrients, Sheep,
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