Journal of Animal Science and Technology

  • 제50권4호
  • /
  • Pages.485-498
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  • 2008
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  • 2672-0191(pISSN)
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  • 2055-0391(eISSN)
한국축산학회 (Korean Society of Animal Sciences and Technology)
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사료내 희토 첨가가 비육돈의 생산성, 혈액내 면역관련 세포수, 육질특성 및 분 중 악취방출 가스함량에 미치는 영향

Effects of Rare Earth Supplementation on Growth Performance, Blood Immune-Related Cell Population, Meat Quality and Fecal Odor Emission Gases in Finishing Pigs

  • 신승오 (단국대학교 동물자원학과) ;
  • 유종상 (단국대학교 동물자원학과) ;
  • 이제현 (단국대학교 동물자원학과) ;
  • 장해동 (단국대학교 동물자원학과) ;
  • 김효진 (단국대학교 동물자원학과) ;
  • 황염 (단국대학교 동물자원학과) ;
  • 진영걸 (단국대학교 동물자원학과) ;
  • 조진호 (단국대학교 동물자원학과) ;
  • 김인호 (단국대학교 동물자원학과)
  • Shin, Seung-Oh (Department of Animal Resource & Science, Dankook University) ;
  • Yoo, Jong0Sang (Department of Animal Resource & Science, Dankook University) ;
  • Lee, Je0Hyun (Department of Animal Resource & Science, Dankook University) ;
  • Jang, Hae0Dong (Department of Animal Resource & Science, Dankook University) ;
  • Kim, Hyo0Jin (Department of Animal Resource & Science, Dankook University) ;
  • Huang, Yan (Department of Animal Resource & Science, Dankook University) ;
  • Chen, Ying-Jie (Department of Animal Resource & Science, Dankook University) ;
  • Cho, Jin-Ho (Department of Animal Resource & Science, Dankook University) ;
  • Kim, In-Ho (Department of Animal Resource & Science, Dankook University)
  • 발행 : 2008.08.01
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초록

본 연구는 희토의 첨가가 비육돈의 생산성, 면역관련 혈액학적 지표, 육질특성 및 분내 유해가스발생 함량에 미치는 영향에 대해 알아보기 위하여 시험을 실시하였다. 3원 교잡종 비육돈 64두를 공시하였으며, 시험 개시시 체중이 65.42±1.16kg 이었고, 10주간 사양시험을 실시하였다. 시험설계는 1)Antibiotic free diet (NC), 2)NC diet+6 weeks 44ppm of tylosin/4 weeks 22ppm of tylosin(PC) 3)NC diet+100ppm of RE(RE1) 및 4)NC diet+200ppm of RE (RE2)로 4개 처리를 하여 처리당 4반복, 반복당 4두씩 완전임의 배치하였다. 사양시험 기간 동안 일당증체량, 일당사료섭취량 및 사료효율은 처리구간에 유의적인 차이가 없었다(P>0.05). 건물 및 질소 소화율은 RE2처리구가 다른 처리구와 비교하여 높게 나타났으며(P<0.05). 에너지소화율은 RE2처리구가 NC 및 RE1처리구와 비교하여 높은 소화율을 나타내었다(P<0.05). WBC 수준은 6주에서 RE1처리구가 NC 및 RE2처리구와 비교하여 높은 함량을 나타내었다(P<0.05). 배최장근의 명도를 나타내는 L*값은 희토를 첨가한 RE1 및 RE2처리구가 NC처리구와 비교하여 높게 나타났으나(P<0.05), a* 값은 PC처리구가 RE1처리구와 비교하여 유의적으로 높았다(P<0.05). 근내지방 내 지방산 조성에 있어서 total MUFA는 RE2처리구가 다른 처리구와 비교하여 높은 함량을 나타내었으며(P<0.05), total UFA는 RE2처리구가 PC처리구와 비교하여 높았다(P<0.05). 등지방 내 지방산 조성에 있어서 Total SFA는 PC처리구가 희토를 첨가한 RE1 및 RE2처리구와 비교하여 높은 함량은 나타내었다(P<0.05). Total UFA/SFA는 희토를 첨가한 RE1 및 RE2처리구가 PC처리구와 비교하여 높게 나타났다(P<0.05). 분내 유해가스 물질의 발생 함량에 있어서 암모니아(NH3)는 희토를 첨가한 RE1 및 RE2 처리구가 NC 및 PC처리구와 비교하여 낮은 함량을 나타내었다(P<0.05). 결론적으로, 본 시험의 결과 비육돈에 희토의 첨가는 영양소 소화율, 육질특성, 지방산조성 및 분내 유해가스 함량에 영향을 미치는 것으로 사료된다.

This study was conducted to evaluate effects of dietary rare earth on growth performance, blood immune- related cell population, meat quality and fecal odor emitting gases in finishing pigs. The total of sixty four (Landrace×Yorkshire×Duroc) pigs(65.42±1.16kg in average initial body weight) were used for feeding trial during 10 weeks of experimental period. Dietary treatments included 1) NC(antibiotic free diet), 2) PC (NC diet+6 weeks 44ppm of tylosin/ 4 weeks 22ppm of tylosin) 3) RE1 (NC diet + 100ppm of RE), 4) RE2 (NC diet+200ppm of RE). There were four dietary treatments with four replicate pens per treatment and four pigs per pen. During the overall periods, there were no significant differences in ADG(Average daily gain), ADFI (Average daily feed intake) and gain/feed ratio among treatments(P>0.05). Dry matter and nitrogen digestibility were higher in RE2 treatment group than other groups(P<0.05). Also, energy digestibility was higher in RE2 treatment group than PC and RE1 treatment groups(P<0.05). At the 6th week WBC(white blood cell) was significantly increased(P<0.05) in RE1 treatment group than NC and RE2 treatment groups. L* value of M. logissimus dorsi muscle color was significantly increased(P<0.05) in rare earth supplemented groups compared to NC treatment group(P<0.05). However, a* value was lower in RE1 treatment group than PC treatment group (P<0.05). In fatty acid composition of Intramuscular fat, total MUFA was significantly higher in RE2 treatment group than other groups(P<0.05). Also, total UFA was significantly increased in RE2 treatment group compared with NC and PC treatment groups(P<0.05). In fatty acid composition of back fats, total SFA of rare earth supplemented groups were lower than in PC treatment group(P<0.05). UFA:SFA ratio was significantly higher in rare earth supplemented groups than PC treatment group(P<0.05). In fecal odor emission, NH3 was significantly decreased(P<0.05) in rare earth supplemented groups compared to NC and PC treatment groups. In conclusion, the results of the experiment was affected by rare earth supplementation on digestibilities, meat quality, fatty acid and fecal odor emission gases in finishing pigs.

키워드

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