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Aflatoxin B1 과 Vitamin D3 급여가 Broiler 병아리의 제3지열골 무기물 함량에 미치는 영향
장윤환(Y . H . Chiang),여영수(Y . S . Yeoh) 한국축산학회 1991 한국축산학회지 Vol.33 No.1
This study was conducted to investigate the interaction of aflatoxin B₁(AFB₁) and vitamin D₃(VD₃) in broiler chicks. The 336 broiler chicks(Hubbard line) of equally mixed sex were allocated to triplicate 8 (2×4 factorial) treatment groups. The 0 or 1 mg/kg of AFB₁ and 0. 500. 1,000 or 1.500 IU/kg of VD₃ were supplemented to the basal diet. Fourteen broilers of equally mixed sex were allocated to each replica and 24 groups were arranged in a randomized block design. After 3 weeks of feeding the middle toes cut at the joint between second and third bone from distal toenail were collected from the right and left legs of 4 chicks (2 for each sex) per group. The bone ash and minerals were measured. l. In respect to the non-fat dry weight of middle toe bone no significant difference was shown by feeding AFB₁ however, there was a decreasing trend of weight according to the increasing level of VD₃. 2. The ash, Ca, Na. Mg and Fe contents in non-fat dry middle toe of broiler chicks fed 1 mg/kg AFB₁ were decreased. The Ca content in middle toe was increased as fed increasing levels of VD₃. The 1500 IU/Kg of VD₃ was recommended to recover the damage of feeding AFB₁. 3. The Na content in toe was not changed according to the different levels of VD₃ However, the interaction between AFB₁ and VD₃ was recognized in respect to the Na concentration in middle toe(P$lt;.05). When chicks were fed 0 mg/kg AFB₁, the Na contents was decreased according to the increasing amount of VD₃. While 1 mg/kg AFB₁ was fed, an increasing figure was presented. 4. The Mg content was decreased following the increasing levels of VD₃(P$lt;.01), which showed reverse trend with Ca content. 5. The Fe concentration in middle toe was also decreased according to the increasing levels of VD₃(P$lt;.05). The interaction between AFB₁ and VD₃ was found(P$lt;.05). The Fe content was decreased following the increasing amount of VD₃ when fed 0 mg/kg AFB₁ while similar amounts of Fe in middle toe were shown according to the VD₃ feeding when fed 1 mg/kg AFB₁.
상이 (相異) 한 선량의 자외선을 조사한 브로일러 병아리에 있어서 간장 비타민 D 농도의 경시적 변화
장윤환(Y . H . Chiang),강훈석(H . S . Kang),여영수(Y . S . Yeoh),김강수(K . S . Kim),조인호(I . H . Cho),배은경(E . K . Bae) 한국축산학회 1992 한국축산학회지 Vol.34 No.5
This study was carried out to elucidate the time course variation of liver vitamin D(VD) concentration of broiler Hubbard chicks fed VD-deficient diet for 31 days in a subdued light room and exposed to UVB light(maximum intensity at 297 nm) with dose of 0.204 or 0.408 mJ/㎠. The lipid in liver was extracted by chloroform-methanol (2:1) and VD fraction was separated by Sep-Pak silica cartridge. The VD contents were analyzed by normal phase HPLC. The control birds received no UVB irradiation showed the liver VD level of 5 ng/g. When 0.204 mJ/㎠ was treated to whole body of chicks, the liver VD level tended to increase until 90 hrs after irradiation, where the maximum value of 11 ng/g appeared. A decreased level of ng/g was present at 138 hrs after exposure. The peak value (16 ng/g) was shown also at 90 hrs after UVB treatment when 0.408 mJ/㎠ was applied. A low level of 5 ng/g was present at 138 hrs after irradiation. Consequently it was verified that 0.408 mJ/㎠ of UVB treatment produced more VD in liver of broiler chicks than the 0.204 mJ/㎠ did, and the highest level of liver VD appeared at 90 hrs after exposure.
Aflatoxin B1 과 Vitamin D3 급여가 Broiler 병아리의 혈장성상에 미치는 영향
장윤환(Y . H . Chiang),여영수(Y . S . Yeoh) 한국축산학회 1991 한국축산학회지 Vol.33 No.12
This study was conducted to investigate the interaction of aflatoxin B₁ (AFB₁) and vitamin D₃(VD₃) in broiler chicks. Three hundreds and thirty six broiler chicks(Hubbard line) of equally mixed sex were allocated to triplicate 8 (2 × 4 factorial) treatment groups. The 0 or 1 ppm of AFB₁ and 0. 500. 1.000 or 1,500 IU/㎏ of VD₃ were supplemented to the basal diet. Fourteen broilers of equally mixed sex were allocated to each replica and 24 groups were arranged in a randomized block design. After 3 weeks of feeding the blood was collected from 4 chicks (2 for each sex) per group and the plasma characteristics was measured. The VD₃ concentration in plasma decreased when fed AFB₁ although no significance was recognized. while increased by feeding the increasing level of VD₃ (p$lt; .01). It was known that the 1000 IU/㎏ of VD₃, would be needed to diminish the decrease of VD₃ in plasma due to feeding 1 ppm AFB₁. The alkaline phosphatase (ALPase) activity. Ca and P concentrations in plasma were not affected by feeding AFB₁ and/or VD₃.
Aflatoxin B1 과 Vitamin D3 급여가 Broiler 병아리의 일반성분 및 광물질 이용율에 미치는 영향
장윤환(Y . H . Chiang),여영수(Y . S . Yeoh) 한국축산학회 1990 한국축산학회지 Vol.32 No.9
This study was conducted to investigate the interaction effect of aflatoxin B₁(AFB₁) and vitamin D₃(VD₃) in broiler chicks. Three hundred thirty-six broiler chicks(Hubbard line) of equally mixed sex were allocated to triplicate 8(2×4 factorial) treatment groups. The 0 or l ppm of AFB₁, and 0, 500, 1000 or 1500 IU/kg of VD₃ were supplemented to the basal diet. Fourteen broilers of equally mixed sex were allocated to each replica and 24 groups were arranged in a randomized block disign. The metabolism experiment was carried out during 2-3 weeks of age. The utilization efficiencies of proximate composition and minerals were investigated by the total collection of waste. l. The utilization efficiencies of ether extract and crude fiber were decreased by feeding one ppm of AFB₁ (p $lt;.05). The utilization efficiency of ether extract was decreased(p $lt;.05) and that of crude ash was increased (p $lt;01) when increasing level of VD₃(0-1500 IU/kg diet) was fed. The interaction effect between AFB₁ and VD₃ was not recognized in respect to the utilization efficiencies of all proximate compositions. 2. The utilization efficiency of Ca in feed was not significantly changed by feeding one ppm AFB₁ or 500-1500IU/kg VD₃. However, that of p in feed was profoundly decreased by feeding one ppm AFB₁(p $lt;.01). That of Mg showed an increasing trend by mixing one ppm AFB₁(p $lt;.01) or 500-1500 IU/kg VD₃(p $lt;.05) into the diet. It was verified that there was an interaction effect between AFB₁ and VD₃ in terms of the utilization efficiencies of` Mg in treatments(p $lt;.05). Those of Na and K were not significantly changed by feeding AFB₁. However, that of K was increased by supplementing increasing level of VD₃ into the diet (p $lt;.05).
브로일러 병아리의 등 피부에 312 mm 자외선 조사시 상이한 선량이 혈장내 비타민 D3 함량에 미치는 영향
장윤환(Y . H . Chiang),원지웅(J . W . Won),강훈석(H . S . Kang),김강수(K . S . Kim),여영수(Y . S . Yeoh) 한국축산학회 1992 한국축산학회지 Vol.34 No.3
This study was conducted to elucidate the effect of different dose of 312 nm UV light on plasma vitamin D₃(D₃) content of 3 week old broiler chicks. The 0.32, 0.65 or 0.98 J/㎠ of dose was applied on dosal skin of birds and blood samples were collected day 0, 1, 2, 3, 4 and 5 after UV exposure. The plasma was isolated and D₃ concentrations were analyzed by HPLC. When dorsal skin was exposed to 0.32 J/㎠ of UV dose, the mean plasma D₃ content was 24 ng/㎖ immediately after irradiation and 46 ng/㎖ (peak) at day one after exposure. The D₃ level tended to decrease until day 5 (10 ng/㎖). As 0.65 J/㎠ of UV dose was treated, the D₃ concentrations were 20, 22, 37, 14, 29 and 10 ng/㎖ at day 0, 1, 2, 3, 4 and 5 after irradiation, respectively. When 0.98 J/㎠ dose was applied, the plasma D₃ levels were 25, 25 and 34 ng/㎖ at day 0, 1 and 2, respectively and decreased thereafter. Consequently it was shown that the treatment of 0.32 J/㎠ produced more D₃ in chick plasma than 0.65 or 0.98 J/㎠ did (P$lt;.05).