Abstract:
21A A PRELIMINARY STUDY OF DEFATTED RICE BRAN IN THE DIETS OF PIGS AND RATS B.E. WARREN*, R.G. GERDES* and D.J. FARRELL* . There are limited data on the nutritional value of defatted rice bran for monogastric animals. The effects of feeding diets containing different amounts of defatted rice bran to pigs and rats were examined in experiments described here. Thirty male Landrace x Large White pigs of mean liveweight (W, kg) 19.3 + l.4 were,allocated to 5 diets (Table '1) and grown to 45 kg. Feed allowance (g/d) was 120 Woo7'. Weanling rats (S/group) were offered ad libitum the same diets for 18 d. ' The Tamworth) and wheat determine TABLE 1 diets were a commercial pig-grower diet (Fielders Stockfeed, substituted with defatted rice bran (186 g CP/kg, 11.2 MJ'DE/kg) bran (Table 1). Standard analytical procedures were used to chemical composition of the diets. Diet composition (g/kg), determined analysis and production parameters There were no differences (P>O.OS) in growth rate or FCR of pigs or rats on any diet. However differences approach significance (O.l>P>O.OS) ' for pig growth between diets 1 and 3. Differences' (Pl;O.OS) in dry matter (DM) intake of rats were observed. This was in part due to spillage and ingredient selection particularly on diet 5 containing wheat bran. This latter diet also contained the highest amount of ADF (89 g/kg). It appears that defatted rice bran at up support an acceptable growth rate in pigs and effect on FCR. There is some indication from rates that the inclusion of defatted rice bran optimal. to 30% of the diet can rats without an adverse both rat and pig growth at 20% of the diet may be *Department of Biochemistry and Nutrition, University of New England, Armidale, N.S.W. 2351.
