Effects of Phase Feeding and Sugar Beet Pulp on Growth Performance, Nutrient Digestibility, Blood Urea Nitrogen, Nutrient Excretion and Carcass Characteristics in Finishing Pigs

  • Ko, T.G. (School of Agricultural Biotechnology, Seoul National University) ;
  • Lee, J.H. (Easy Bio System, Inc.) ;
  • Kim, B.G. (School of Agricultural Biotechnology, Seoul National University) ;
  • Min, T.S. (Korea Science and Engineering Foundation) ;
  • Cho, S.B. (National Livestock Research Institute, RDA) ;
  • Han, In K. (School of Agricultural Biotechnology, Seoul National University) ;
  • Kim, Y.Y. (School of Agricultural Biotechnology, Seoul National University)
  • Received : 2003.09.09
  • Accepted : 2003.12.30
  • Published : 2004.08.01


This experiment was conducted to investigate effects of phase feeding and sugar beet pulp (SBP) on growth performance, nutrient digestibility, nitrogen excretion, blood urea nitrogen (BUN) concentration and carcass characteristics in finishing pigs. A total of 128 pigs were allotted at 53.9 kg BW to 8 replicates in a 2$\times$2 factorial arrangement in a randomized complete block (RCB) design. The first factor was phase feeding (2 or 3 phase feeding) and SBP (SBP: 0% or 10%) was the second factor. Ten percent SBP supplement groups showed lower average daily feed intake (ADFI) than 0% SBP supplement groups (p<0.05). However, there were no significant difference in average daily gain (ADG) and feed:gain ratio among treatments during overall experimental period. Nutrient digestibility was not affected by phase feeding or SBP supplementation. Urinary nitrogen excretion in 10% SBP supplement group was lower than that in 0% SBP supplement group (p<0.05) and total nitrogen excretion was lower in SBP supplement group than in the group without SBP. Urinary and total nitrogen were numerically decreased in three phase feeding compared to two phase feeding. The BUN concentration in three phase feeding groups was lower than two phase feeding groups at 47 and 63 day (p<0.05). Consequently, results of this experiment demonstrated that three phase feeding was more acceptable than two phase feeding for finishing pigs. And sugar beet pulp could be supplemented in finishing pig diet for decreasing urinary nitrogen excretion without retardation in growth performance of pigs.


Phase Feeding;Sugar Beet Pulp;Growth Performance;Nitrogen Excretion;Finishing Pigs


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