Author : Ronachai Sittihigripong

Summary : Four experiments were conducted to establish the proximate nutrient composition, nutrient digestibility of mungbean meal vermicelli by-product (MBMV) and two feeding trials to evaluate the effect of MBMV on production performance of growing-finishing pigs. The nutrient composition of MBMV from the different sources showed wery wide values. No significant differences were observed in nutrient composition, amino acid, and fatty acid contents between sun-dried and oven-dried MBMV. The MBMV contained an average of crude protein, ether extract and crude fiber contents, 13.08-22.60, 0.46-2.06, and 14.78-35.50 percent, respectively. The drying process for MBMV did not significantly affect the digestibility of different nutrient and metabolizable energy of MBMV during the growing (30 kg) stage. In the finishing (60 kg) period, the digestibility of nutrients and metabolizable energy of sun-dried and oven-dried MBMV were similar, except that of the apparent digestible crude protein of sun-dried MBMV which was higher (P<0.01) than that of oven-dried MBMV. Furthermore, older animals could utilize MBMV more efficiently than younger ones. MBMV replacement affected (P<0.05) production performance at the growing pig stage. The average daily gain, feed intake, metabolizable energy (ME) intake and crude protein (CP) intake quadratically increased with increased the level MBMV in the ration but length of feeding days quadratically decreased. The protein efficiency ratio (PER) and feed conversion ration (FCR) linearly decreased with increasing level of MBMV in the diet. In the finishing period, the production performance of pigs on all levels of MBMV were not significantly different. However, pigs fed the 75 percent MBMV replacing rice bran had the best production performance and those on 100 percent MBMV replacement had the poorest. The results indicated that for every percentage increase of MBMV replacing rice bran the daily feed intake. ME intake and CP intake linearly increased. On the other hand, the PER and FCR.