Comparison of the Efficacy of Different Organic Acids on Growth Performance and Nutrient Digestibility in Weaned Pigs

다양한 유기산제들의 급여가 이유자돈의 성장과 영양소 소화율에 미치는 효과

  • Joo, Ji-Whan (Department of Animal Resources Science, Kangwon National University) ;
  • Yang, YuXin (Department of Animal Resources Science, Kangwon National University) ;
  • Choi, Jae-Yong (Department of Animal Resources Science, Kangwon National University) ;
  • Choi, Soon-Chon (Department of Animal Resources Science, Kangwon National University) ;
  • Cho, Won-Tak (Genebiotech. Co.) ;
  • Chae, Byung-Jo (Department of Animal Resources Science, Kangwon National University)
  • 주지환 (강원대학교 동물자원과학과) ;
  • ;
  • 최재용 (강원대학교 동물자원과학과) ;
  • 최순천 (강원대학교 동물자원과학과) ;
  • 조원탁 ((주) 진바이오텍) ;
  • 채병조 (강원대학교 동물자원과학과)
  • Received : 2008.11.11
  • Accepted : 2009.02.18
  • Published : 2009.02.01


Two experiments were conducted to compare the effects of different organic acids on growth performance and apparent nutrients digestibility in weaned pigs. In both the experiments, 180 pigs were assigned to four treatments with three replicates comprising of 15 pigs in each. Formic acid, ammonium-formate, lactic acid, and acid mixture were added to diets at 0.50% (Exp. 1) and 0.30% (Exp. 2) as dietary treatments for 5 and 6 wk feeding trial, respectively. The acid mixture was prepared by mixing formic acid and lactic acid at 50:50 ratios. To investigate the apparent ileal amino acids digestibility, twelve pigs (3 per treatment) were used and fitted with simple ileo-caecal T-cannula for both experiments. In Exp.1, growth performance was comparable (P>0.05) among pigs fed different organic acids, while acid mixture had higher (P<0.05) weight gain than that of lactic acid in Exp.2. The apparent ileal digestibility of amino acids was highest (P<0.05) in pigs fed acid mixture and lowest (P<0.05) in pigs fed formic acid diets in both experiments. These results indicated that supplementation with acid mixture (formic acid and lactic acid) improved performance and ileal amino acid digestibility in weaned pigs.


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