EFFECT OF DIETARY MULTI-ENZYME COMPLEX AND FIBRE SOURCES ON PERFORMANCE AND NUTRIENT DIGESTIBILITY OF GROWING PIGS

Résumé

Six dietary treatments were formulated. Diet 1, 2 and 3 contained 200g kg-1 soya bean meal (SBM), wheat bran (WB) and rice bran (RB), respectively. Diets 4, 5 and 6 were the same as 1,2 and 3 but contained a multienzyme complex supplemented at the rate of 4g kg-1 diet. Each dietary treatment was fed to three weaner pigs and each pig served as a replicate for 42 days with daily performance measurement. Faecal sample were collected and analysed for nutrient digestibility calculations using standard procedures. Data were analysed using descriptive statistics and ANOVA at α0.05. Irrespective of enzyme addition or not, FI and feed efficiency of pigs on the SBM and WB diets were similar (P>0.05). Pigs on the RB diet had significantly higher FI than those on the SBM and WB diets. Enzyme supplementation had no effect on FI and feed efficiency. Daily weight gain was similar in pigs on the 3 diets without enzyme. Enzyme supplementation resulted in significantly higher daily weight gain in pigs on the RB diets compared to those on the SBM and WB diets. Crude fibre digestibility was significantly higher in pigs on the RB diet with or without enzyme supplementation. SBM resulted in significantly higher digestibility of ether extract with or without enzyme supplementation while similar results were obtained for CP and ash digestibility in RB diet. The use of exogenous multi-enzyme supplementation in rice bran diet can be recommended as alternative to soya bean meal diet.