논문 : 뽕잎과 잠분 추출물 급여가 육계의 생산성, 혈액 성상 및 맹장 내 미생물군에 미치는 영향
분야
농학 > 기타(농학)
저자
한상훈 ( Sang Hoon Han ) , 김동욱 ( Dong Wook Kim ) , 지상윤 ( Sang Yoon Ji ) , 홍성구 ( Seong Koo Hong ) , 김상호 ( Sang Ho Kim ) , 이희삼 ( Heui Sam Lee )
발행기관
한국잠사학회
간행물정보
한국잠사곤충학회지(구 한국잠사학회지) 2012년, 제50권 제2호, 150~160페이지(총11페이지)
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    영문초록
    The object of this study was to evaluate the effects of dietary supplementation of mulberry leaves and silkworm excreta ethanol extracts on weight performances, blood characteristics, cecal microflorae of chickens. Two hundred forty male broiler chicks(Ross) were fed diets for five weeks containing 0.1%(MLA) and 1%(MLB) of mulberry leaves ethanol extracts, and 0.1%(SEA) and 1%(SEB) of silkworm excreta ethanol extracts. Weight performance did show no significant difference in all test groups which were fed with supplementation of mulberry leaves and silkworm excreta ethanol extracts. They showed better weight gain and feed conversion than the negative control group which was fed only with forage without antibiotics. ABTS(2`-azine-bis[3-ethylbenzothiazoline-6-sulfonic acid]) test was conducted to investigate free radical scavenging activity of blood in tested groups. ABTS scavenging activities of tested groups were higher than control groups in significant level, though there was no significant difference(P = 0.396). Specifically, MLB group showed the highest scavenging activity. Blood-level concentration of MDA, which is an indicator of lipid peroxidation, was also decreased in tested groups and the lowest level was observed in SEA(P = 0.001). As storage time increased at 4oC, muscle-level MDA concentrations of all tested groups were generally increased and significant difference was obsereved between tested groups and controls in total increase of MDA concentration(P = 4.417 × 10-3). In cecal microflorae, SEA and SEB showed decreased total microbe population compared to NC(P = 6.462 × 10-5) and even to PC. Supplementation of mulberry leave and silkworm excreta ethanol extract did show a similar inhibition effect against Salmonella sp., furthermore, MLB did enhanced the growth of Lactobacillus sp.(P = 3.636 × 10-7). In summary, ethanol extract of silkworm excreta may be a potential alternative of antibiotics for chicks. In addition, both of ethanol extracts supplementation to broiler chicks would be very useful not only to improve antioxidant effect of blood but also to suppress lipid peroxidation without any loss of weight performance in poultry farming.
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