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- Title
The effects of fermented soy protein in simple or complex diet on growth performance and amino acids digestibility in weaned pigs.
- Authors
Min, B. J.; Cho, J. H.; Chen, Y. J.; Kim, H. J.; Yoo, J. S.; Kim, I. H.; Lee, S. S.; Cho, W. T.
- Abstract
120 weaned pigs(D×Y×L, 5.68±0.80kg average initial BW, weaned at 21 d) were used to evaluate the effect of fermented soy protein in simple or complex diet on growth performance and amino acids digestibility during 30 days. Experimental diets consisted of simple(using soybean meal as protein sources) and complex(using SBM, rice protein concentrate, potato protein concentrate and fish meal as protein sources) diet which contained 0 or 5% fermented soy protein(FSP), respectively. Pigs were provided each experimental diet for 20 days (phase 1) and then, all pigs fed same common diet for 10 days (phase 2). In 0-10 days, pigs fed complex diet gained more than those fed simple diet(P<0.05). However, in 10-30 days, ADG was not affected by treatments. In 20-30 days, G/F was higher in pigs fed 5% FSP diet than those fed 0% FSP diet(P<0.09). In whole period, growth performance of pigs fed complex diet including 5% FSP was tended to increase without significant differences. Also, including FSP in both diets improved feed efficiency of pigs(P<0.05). DM and N digestibilities of pigs fed complex diet was higher than those fed simple diet at 10 d(P<0.001). However, there was no effect on N digestibility at 20, 30d. Lysine, methionine and valine digestibilities were greater(P<0.02) in pigs fed 5% FSP diet than in those fed 0% FSP diet. Pigs fed only soybean meal as protein source was increased NH3-N in feces compared with pigs fed 5% FSP in simple diet and 0% FSP in complex diet(P<0.05).
- Subjects
SOY proteins; FISH protein concentrate; LYSINE; AMINO acid metabolism; AMINO acids; METHIONINE; SWINE; SOYBEAN meal
- Publication
Journal of Animal Science, 2006, Vol 84, p41
- ISSN
0021-8812
- Publication type
Article