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Effect of Dietary α-1,6-Galactosidase and β-1,4-Mannanase on Growth Performance and Nutrient Digestibility in Nursery and Growing Pigs

자돈 및 육성돈에 있어 α-1,6-galactosidase와 β-1,4-mannanase의 사료내 첨가가 성장 및 영양소 소화율에 미치는 영향

  • Kwon, O. S. (Department of Animal Resource & Science, Dankook University) ;
  • Kim, I. H. (Department of Animal Resource & Science, Dankook University) ;
  • Lee, S. H. (Department of Animal Resource & Science, Dankook University) ;
  • Hong, J. W. (Department of Animal Resource & Science, Dankook University) ;
  • Kim, J. H. (Agribrands Purina Korea, Inc.) ;
  • Moon, T. H. (Easybio System, Inc.) ;
  • Lee, J. H. (Easybio System, Inc.)
  • 권오석 (단국대학교 동물자원과학과) ;
  • 김인호 (단국대학교 동물자원과학과) ;
  • 이상환 (단국대학교 동물자원과학과) ;
  • 홍종욱 (단국대학교 동물자원과학과) ;
  • 김지훈 (㈜애그리브랜드 퓨리나코리아) ;
  • 문태현 (이지바이오시스템) ;
  • 이지훈 (이지바이오시스템)
  • Published : 2003.04.30

Abstract

For the Exp. 1, a total of sixty pigs (10.57$\pm$0.30kg average initial body weight) were used in a 15-d growth assay to determine the effect of dietary $\alpha$-1,6-galactosidase and $\beta$-1,4-mannanase on growth performance and nutrient digestibility. Dietary treatments included 1) CON (corn-dried whey-SBM based diet), 2) EC0.1 (CON diet+0.1% enzyme complex of $\alpha$-1,6-galactosidase and $\beta$-1,4-mannanase). Through the entire experimental period, gain/feed of pigs fed EC0.1 diet was higher (0.43 vs 0.52) than that of pigs fed CON diet (P<0.05). Pigs fed EC0.1 diet showed significant (P<0.05) improvement in dry matter (74.82% vs 82.41%) and nitrogen (70.59% vs 77.88%) digestibilities compared to pigs fed CON diet. For the Exp. 2, a total of thirty six pigs (22.30$\pm$0.45kg average initial body weight) were used in a 30-d growth assay to determine the effects of dietary $\alpha$-1,6-galactosidase and $\beta$-1,4-mannanase in low energy diet on growth performance and nutrient digestibility. Dietary treatments included 1) AME (adequate ME diet), 2) AME+EC0.1 (AME diet+0.1% enzyme complex) and LME+EC0.1 (low ME diet + 0.1% enzyme complex). Through the entire experimental period, average daily feed intake of pigs fed enzyme complex supplemented diets was higher than that of pigs fed CON diet (P<0.05). Also, pigs fed AME+EC0.1 diet showed significant (P<0.05) increase in ADFI (1,401g vs 1,733g) compared to pigs fed CON diet. Pigs fed enzyme complex supplemented diet showed significant (P<0.05) improvement in dry matter and nitrogen digestibilities compared to pigs fed CON diet. In conclusion, the results obtained from these feeding trials suggest that the supplementation of $\alpha$-1,6-galactosidase and $\beta$-1,4-mannanase was an effective means for improving growth performance and dry matter and nitrogen digestibilities in nursery and growing pigs.

본 연구는 양돈사료내 대두박 항영양인자인 $\alpha$-galactosides와 galatomannan의 분해를 유도하는 $\alpha$-1,6-galactosidase와 $\beta$-1,4-mannanase의 사료내 첨가가 자돈 및 육성돈의 성장과 영양소 소화율에 미치는 영향을 조사하기 위하여 실시하였다. 시험 1은 개시시 체중 10.57$\pm$0.30kg의 3원 교잡종 자돈 60두를 공시하였으며, 시험설계는 옥수수-건조유청-대두박 위주의 사료에 NRC (1998)의 영양소 요구량에 따라 처리한 대조구 (CON), 대조구 사료내 복합효소제를 0.1% 첨가한 처리구로 하였다. 사양시험기간동안, 일당증체량에 있어서는 대조구와 비교하여 EC0.1 처리구가 높은 것으로 평가되었으나 유의적인 차이는 보이지 않았다. 그러나 사료효율에 있어서는 대조구와 비교하여 EC0.1 처리구가 유의적으로 높게 평가되었다 (P<0.05). 건물과 질소 소화율에 있어서 대조구와 비교하여 처리구가 향상된 것으로 조사되었다 (P<0.05). 시험 2는 개시시 체중 22.30$\pm$0.45kg의 3원 교잡종 육성돈 36두를 공시하였으며, 시험설계는 옥수수-대두박 위주의 사료에 NRC (1998)의 영양소 요구량에 따라 처리한 대조구 (AME, adequate ME diet), 대조구 사료내 복합효소제를 0.1% 첨가한 처리구 (AME+EC0.1, Adequate ME diet+ 0.1% 복합효소제), 대조구 사료에서 대사에너지 함량을 4% 낮춘 사료에 복합효소제를 0.1% 첨가한 처리구 (LME+EC0.1, Low ME diet + 0.1% 복합효소제)로 하였다. 총 30일간의 사양시험 기간동안, 일당증체량에 있어서는 AME 처리구와 비교하여 복합효소제 처리구가 유의적인 성장율이 높은 것으로 조사되었다 (P<0.05). 건물 및 질소 소화율에 있어서는 AME 처리구와 비교하여 복합효소제 첨가구가 유의적으로 높게 평가되었다 (P<0.05). 결론적으로, 자돈 및 육성돈 사료에 복합효소제의 첨가는 성장능력 및 영양소 소화율을 향상시키는 것으로 사료된다.

Keywords

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