Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Effects of Complex Probiotic Supplementation on Growth Performance, Nutrient Digestibility, Blood Metabolites, Noxious Gas and Fecal Microflora in Weaning Pigs

사료 내 복합생균제 첨가가 이유자돈의 사양성적, 영양소 소화율, 혈액성상, 분내 유해가스 및 분 중 미생물에 미치는 영향

  • Kim, Dong-Woo (Department of Animal Industry Convergence, College of Animal Life Sciences, Kangwon National University) ;
  • Choi, Yo-Han (Swine Science Division, National Institute of Animal Science, Rural Development Administration) ;
  • Kim, Jo-Eun (Swine Science Division, National Institute of Animal Science, Rural Development Administration) ;
  • Cho, Eun Seok (Swine Science Division, National Institute of Animal Science, Rural Development Administration) ;
  • Jung, Hyun-Jung (Swine Science Division, National Institute of Animal Science, Rural Development Administration) ;
  • Oh, Seung-Min (Gyeongsangbuk-do Livestock Research Institute) ;
  • Kim, Jeong-Dae (Department of Animal Industry Convergence, College of Animal Life Sciences, Kangwon National University) ;
  • Kim, Jin-Soo (Department of Animal Industry Convergence, College of Animal Life Sciences, Kangwon National University)
  • 김동우 (강원대학교 동물생명과학대학 동물산업융합학과) ;
  • 최요한 (농진청 국립축산과학원 양돈과) ;
  • 김조은 (농진청 국립축산과학원 양돈과) ;
  • 조은석 (농진청 국립축산과학원 양돈과) ;
  • 정현정 (농진청 국립축산과학원 양돈과) ;
  • 오승민 (경상북도 축산기술연구소) ;
  • 김정대 (강원대학교 동물생명과학대학 동물산업융합학과) ;
  • 김진수 (강원대학교 동물생명과학대학 동물산업융합학과)
  • Received : 2020.02.03
  • Accepted : 2020.05.08
  • Published : 2020.05.31
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Abstract

This study was undertaken to determine the effects of diet supplementation with complex probiotics (CPB), on growth performance, nutrient digestibility, blood metabolites, noxious gas, and fecal microflora in weaning pigs. On the basis of body weight, a total of 234 weaned pigs (Landrace×Yorkshire×Duroc, 6.14±0.78kg) were randomly allotted to 3 treatments and 6 replicates (13 pigs per pen). The experimental diets were fed in a meal form for 28 days (days 0-14, PhaseI, and days 15-28, PhaseII). The dietary treatment groups were as follows: T1 (basal diet), T2 (T1+0.13% CPB) and T3 (T1+0.25% CPB). The CPB supplement contained Bacillus subtilis 1.0×106 CFU/g, Enterococcus faecium 1.0×106 CFU/g, Saccharomyces cerevisiae 1.0×106 CFU/g, Bacillus licheniformis 3.0×108 CFU/g, and Bacillus polyfermenticus 3.0×108 CFU/g. Pigs fed the T3 diet showed an increase (p<0.05) in the overall average daily gain and average daily feed intake, increased (p<0.05) crude protein digestibility in PhaseI, and greater (p<0.05) dry matter and gross energy digestibility in PhaseII. Supplementation of CPB had no effect on the blood profile. Furthermore, pigs fed the T3 diet had lower (p<0.05) NH3 emission and overall count of fecal Clostridium spp. In conclusion, we believe that CPB supplementation has a beneficial effect on growth performance, nutrient digestibility, noxious gas, and fecal microflora in weaning pigs.

본 연구는 생균제의 첨가가 이유자돈의 사양성적, 영양소 소화율, 혈액성상, 분 내 유해가스 및 분 중 미생물에 미치는 영향을 구명하기 위해 수행하였다. 본 실험을 위해 총 234두의 이유자돈(Landrace×Yorkshire× Duroc, 6.14±0.78kg)을 공시하였으며, 개시체중에 기반하여 3처리 6반복, 반복당 13두를 완전임의 배치하였다. 실험은 Phase I(0~14일), PhaseII(15~28일) 총 4주간 조사하였다. 실험 처리구는 T1(basal diet), T2(basal diet+0.13% complex probiotics) 및 T3(basal diet+0.25% complex probiotics)로 구성되었으며, 복합생균제는 Bacillus subtilis 1.0×106 CFU/g, Enterococcus faecium 1.0×106 CFU/g, Saccharomyces cerevisiae 1.0×106 CFU/g, Bacillus licheniformis 3.0×108 CFU/g 및 Bacillus polyfermenticus 3.0×108 CFU/g를 함유하였다. 사양성적은 PhaseII에서 T3 첨가구에서 일당증체량 및 일일사료섭취량이 유의적으로 높게 나타났다(p<0.05). 전기간에서는 PhaseII와 동일한 결과가 나타났다. 영양소 소화율은 PhaseI에서 단백질 소화율이 T3 첨가구에서 유의적으로 높게 나타났으며(p<0.05), PhaseII에서 건물 소화율 및 에너지 소화율이 T3 첨가구에서 유의적으로 높게 나타났다(p<0.05). 혈액성상에서는 PhaseI과 PhaseII에서 모든 처리구간 유의적인 차이가 나타나지 않았다. 분내 유해가스에서는 PhaseII에서 NH3가 T3 첨가구에서 유의적으로 낮게 나타났다(p<0.05). 분 중 미생물에서는 PhaseI과 PhaseII에서 Clostridium spp.이 T3 첨가구에서 유의적으로 낮게 나타났다(p<0.05). 결론적으로 이유자돈 사료 내 복합생균제 첨가는 사양성적, 영양소 소화율, 혈액성상, 분 내 유해가스 및 분 중 미생물을 개선할 수 있다고 사료된다.

Keywords

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