이유자돈에 있어 대두유, 건조팜유분말과 Monoglyceride의 첨가가 성장 및 혈청 지질변화에 미치는 영향
The Effect of Soybean Oil, Dried Palm Oil Power and Monoglyceride Supplementation on Growth Performance and Serum Lipid Changes in Weaned Pigs
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본 실험은 이유자돈에 있어 대두유, 건조팜유분말과 monoglyceride의 첨가가 성장 및 혈청 내 콜레스테롤 변화에 미치는 영향을 조사하기 위하여 실시하였다. 3원 교잡종[(Y×L)×D] 자돈 125두(개시시 체중 6.00±0.79kg)를 공시하여 21일간 사양시험을 실시하였다. 시험설계는 기초사료 내 일반대두유 5%를 함유한 처리구(SOY), 건조팜유분말 5.5%를 함유한 처리구(PALM), 일반대두유 2.5%와 0%, 12.5%, 25%의 monoglyceride를 각각 첨가한 건조팜유분말 2.7%를 함유한 처리구(SOPM0, SOPM12.5, SOPM25)의 5개 처리를 두었다. 0－21일간의 총 사양시험기간동안, 일당사료섭취량은 monoglyceride를 함유한 SOPM 구와 PALM 구가 SOY 구, monoglyceride를 함유하지 않은 SOPM 구와 비교하여 증가하였다(P<0.05). 일당증체량 및 사료효율에 있어서는 처리구간 차이를 보이지 않았다. 지방소화율에 있어서는 SOY 구가 가장 높았으며(P<0.05), monoglyceride를 함유한 SOPM 구는 PALM 구와 비교하여 유의적으로 소화율이 증가하였다(P<0.05). SOPM12.5 구와 SOPM25 구는 SOY 구와 비교하여 통계적인 차이를 보이지 않았다(P>0.05). 그러나, DM, N 및 DE의 소화율에 있어서는 처리구간 차이를 보이지 않았다(P>0.05). 등지방 두께는 처리구간 유의적인 차이를 나타내지 않았다(P>0.05). 혈청 내 콜레스테롤 농도에 있어서는 SOY 구는 다른 처리구와 비교하여 혈청 내 total cholesterol, HDL- cholesterol과 total lipid 함량에 있어서는 유의적으로 감소하였으며(P<0.05), free fatty acid 함량에 있어서는 증가하였다(P<0.05). 또한, triglyceride 함량에 있어서는 PALM 구가 SOPM 구와 비교하여 증가하였다(P=0.06). 결론적으로, 이유자돈에 있어 대두유의 급여는 건조팜유분말의 단일 급여보다 높은 지방 소화율을 나타내었으며, 혈청 콜레스테롤 및 triglyceride 함량에 있어서도 감소하는 것으로 나타났다. 또한, monoglyceride가 함유된 건조팜유분말은 건조팜유분말만을 급여한 처리구와 비교하여 이유자돈의 지방 소화율을 개선하는 효과를 가지는 것으로 사료된다.(색인: 건조팜유분말, 모노글리세라이드, 성장율, 혈청 지질, 이유자돈)
Abstract
This experiment was conducted to determine the Effect of soybean oil, dried palm oil powder and monoglyceride supplementation on growth performance and serum lipid changes in weaned pigs. One hundred twenty five cross-bred pigs((Y×L)×D, 6.00±0.79kg average initial BW) were used in a 21 d growth trial. Dietary treatments included SOY(containing 5% soybean oil), PALM(containing 5.5% dried palm oil powder) and SOPM0, 12.5 and 25(containing 2.5% soybean oil and 2.7% dried palm oil powder containing 0%, 12.5% and 25.0% monoglyceride, respectively). For the whole period, ADFI was increased in dried palm oil powder containing monoglyceride and PALM treatments compared with SOY and SOPM0 treatment(P<0.05). ADG and G/F were not affected by treatments. Digestibility of fat was higher(P<0.05) for pigs fed SOY diet than fed other diets. SOPM diets containing monoglyceride showed increased fat digestibility compared with PALM diet(P<0.05). SOPM12.5 and SOPM25 treatments were no difference with SOY treatment. However, there were no significant differences in digestibilities of DM, N and DE(P>0.05). Backfat thicknesses were not significantly different among treatments. Pigs fed SOY diet was decreased in serum total cholesterol, HDL-cholesterol, total lipid and was increased in free fatty acid than those fed other diet. Also, triglyceride concentration in serum was increased in PALM treatment compared with SOPM treatment(P=0.06). In conclusion, feeding soybean oil in weaned pigs showed higher fat digestibility and lower cholesterol and triglyceride concentration in serum than feeding only dried palm oil powder. Also, pigs fed monoglyceride were improved fat digestibility compared with those fed dried palm oil powder only.
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