Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Probiotic Properties of Enterococcus durans LP44 Isolated from Pigs Feces

돼지의 분변에서 분리한 Enterococcus durans LP44의 생균제로서의 특성

  • 홍종욱 (단국대학교 동물자원과학과) ;
  • 김인호 (단국대학교 동물자원과학과) ;
  • 이상환 (단국대학교 동물자원과학과) ;
  • 권오석 (단국대학교 동물자원과학과) ;
  • 한영근 (농협중앙회) ;
  • 김지훈 (애그리브랜드푸리나코리아) ;
  • 강국희 (성균관대학교 식품생명자원학과)
  • Published : 2002.10.01
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Abstract

We have screened the microorganisms from pigs feces for the development of probiotics which have acid-and bile-tolerance. Among them, a strain which was identified as Enterococcu durans LP44 was selected. Sixty Duroc$\times$Yorkshire$\times$Landrace pigs (6.30$\pm$0.04 kg average initial body weight) were used in a 14 days growth assay to determine the effects of Enterococco duran Lf44 culture on growth performance of weaned pigs. Dietary treatments included 1) DF (dry feeding),2) W (wet feeding),3) WF+5ED (wet feeding+5% Enterocucu duran LP44 culture),4) WF+ 10ED (wet feeding +10% Enterococcus durans LP44 culture). For overall periods, average daily gain in pigs fed % diet tended to increase compared to pigs fed DF diet without significant difference. Also, there was no significant difference in gain/feed. At 5 days after the onset of the experiment, pigs fed WF+5ED and WF+10ED diets were significantly increased in dry matter and nitrogen digestibilities compared to pigs fed DF and W diets (p<0.05). At 14 days after the onset of the experiment, pigs fed WF+ 10ED diet were significantly increased in dry matter digestibility compared to pigs fed DF diet (p<0.05). Also, pigs fed WF + 10ED diet were significantly increased in nitrogen digestibility compared to other treatments (p<0.05). In conclusion, supplemental Enterococcus durans LP44 was an effective means of improving ADG and nutrient digestibility.

본 시험은 국내 사육 돼지 분변에서 분리, 동정한 E. duran LP44의 생균제로서의 효과 및 습식급이 형태로 생균제를 급여하였을 경우, 생균제 급여 이후 자돈의 성장에 미치는 영향을 조사하기 위하여 실시하였다. 돈분으로부터 180균주의 혐기성 세균을 분리한 후, 내산성 및 내담즙성이 있는 E. duran LP44균주를 선발하였다 E. durans LP44 배양물을 이유자돈에게 급여한 사양시험에서, 전체사양 시험기간 동안, 일당증체량 및 일당식이 섭취량에 있어서는 WF 처리군이 DF 처리구와 비교하여 높게 평가되었으나, 통계적으로 유의적인 차이를 보이지 않았다. 또한, 식이효율에 있어서도 처리구간에 유의적인 차이를 보이지 않았다. 또한, 영양소 소화율에 있어서는 사양시험 개시 후 5일째 되는 날에 건물과 질소 소화율은 WF+SED군과 WF+10ED군이 DF군과 WF군과 비교하여 통계적으로 높게 평가되었다(p<0.05). 또한, 14일째 되는 날, 건물 소화율에 있어서는 WF+10ED군이 DF군과 비교하여 유의적으로 높게 평가되었으며, 질소 소화율에 있어서는 WF+10ED군이 다른 처리군과 비교하여 통계적으로 높게 평가되었다(p<0.05). 결론적으로 국내 사육 돼지 분변에서 분리, 동정한 E. duran LP44 배양물을 습식급이 형태로 급여한 후 자돈 성장에 미치는 영향에 대한 시험에서,E. durans LP44 배양물을 급여하였을 경우 자돈 시기에 성장 및 영양소 소화율을 향상시키는 것으로 사료된다.

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