NUTRITIVE VALUE OF RICE POLISH

Abstract

The present study was undertaken to observe the chemical composition of different types of rice polish available in the metropolitan areas of Chittagong, Bangladesh. Twenty different types of rice polishes were collected from study areas. Chemical analyses of the samples were carried out in triplicate for moisture, dry matter (DM), crude protein (CP), crude fiber (CF), nitrogen free extracts (NFE), ether extracts (EE) and total ash in the animal nutrition laboratory, Chittagong Veterinary and Animal Sciences University, Chittagong, Bangladesh. Metabolizable energy (ME) was calculated mathematically for all samples by using standard formula. Results indicated that, there were no marked variations (P0.05) in the moisture, dry matter and total ash contents of the samples. However, metabolizable energy, crude protein, crude fiber, nitrogen free extracts and ether extracts content significantly differed (P0.01) from one sample to another. Moisture content varied from 4.0 to 11.4 g/100g, dry matter content varied from 88.6 to 96.0 g/100g, metabolizable energy content varied from 1321.8 to 3086.9, crude protein content varied from 4.73 to 14.9 g/100g, crude fiber content varied from 6.4 to 41.5 g/100g, ether extract content varied from 1.0 to 18.0 g/100g, nitrogen free extracts content varied from 25.1 to 52.9 g/100g and total ash content varied from 7.13 to 17.6. It could therefore, be inferred that, the chemical composition rice polish currently available in the local market are widely variable.