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Swine Nutrition and Feed Technology
Asian-Australasian Journal of Animal Sciences 2000;13(1): 46-52.
https://doi.org/10.5713/ajas.2000.46    Published online January 1, 2000.
Nutritional Evaluation of Chinese Nonconventional Protein Feedstuffs for Growing-Finishing Pigs - 2. Rapeseed Meal
Defa Li, S. Y. Qiao, G. F. Yi, J. Y. Jiang, X. X. Xu, P. Thacker, X. S. Piao, In K. Han
Two experiments were conducted to determine ileal digestibilities for the amino acids contained in rapeseed meal using the regression technique and then applying the values obtained, in a growth trial, using growing-finishing pigs. For the digestibility trial, four 20 kg crossbred (Yorkshire횞Landrace횞Beijing Black) barrows were fitted with simple T-cannula in the terminal ileum. After recovery, the barrows were fed one of four experimental diets according to a 4횞4 Latin Square design. The pigs were fed corn-soybean meal based diets supplemented with 0, 25, 50 or 75% rapeseed meal. For the growth trial, 80 crossbred (Yorkshire횞Landrace횞Beijing Black) growing pigs (20 2.4 kg) were fed corn-soybean meal diets supplemented with 0, 3, 6, 9 or 12% rapeseed meal. Four pens (2 gilts and 2 castrates) were assigned to each treatment. With the exception of isoleucine and methionine, the digestibility coefficients for the indispensible amino acids declined as the level of rapeseed meal in the diet increased. There was little agreement between the amino acid digestibilities determined with the regression technique and values previously published for rapeseed meal. During the growing (22-42 kg) period, the addition of rapeseed meal had no significant effects on gain, feed intake or feed conversion. During the finishing period (58-91 kg), daily gain was not affected by rapeseed meal inclusion but feed conversion declined (p<0.04) as the level of rapeseed meal in the diet increased.
Keywords: Rapeseed Meal; Ileal Digestibility; Amino Acids; Growth Performance; Pigs

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