• 제목/요약/키워드: mold inhibitor

검색결과 15건 처리시간 0.026초

USE OF MOLD INHIBITOR FOR FEED STORAGE AND IMPROVED CHICK PERFORMANCE

  • Nahm, K.H.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • 제4권3호
    • /
    • pp.285-291
    • /
    • 1991
  • Two experiments were conducted to evaluate the effect of mold inhibitor in the ration which had two different protein levels (18% and 12%) and two different particle sizes (80 or 40% of the particles in the ration less than 1.19 mm). The experimental diets with ave. 12.7% moisture which were treated at the level of 0.1% mold inhibitor were stored under 85% humidity and at $29{\pm}1^{\circ}C$ for 10 to 40 days. In experiment 1, after 40 days of storage the $CO_2$ production in the feed treated with mold inhibitor was higher (p < 0.01) than when 40% of the ration's panicle size was 1.19 mm. Aflatoxin production in the experimental diet with mold inhibitor was affected (p<0.05) by the levels of protein and the different particle size ranges after 40 days storage. The interaction of protein levels and particle size ranges on the anatoxin and $CO_2$ production was significant (p<0.05) at 40 days storage. In experiment 2, there was a decrease in total body weight gain and total feed intake observed in chicks fed the untreated diet of 18% protein with 40% of the particles in the ration less than 1.19 mm stored for 40 days. Feed conversion was depressed (p<0.05) in the chicks fed the untreated diets of both particle sizes. Particle size X types of feed interaction in feed conversion was significant (p<0.05).

배합사료에 대한 항곰팡이제의 효과적인 처리 방법과 사료내 영양소 보전 방법 II. 항곰팡이제의 이용이 사료 영양소 보전 및 병아리 성장에 미치는 요인 (Studies on Factors to Increase Mold Inhibitor Effectiveness in Livestock Rations II. Effects of the Usage of a Mold Inhibitor in the Ration on the Nutritional Status and Performance of Chicks)

  • 남기홍;남기석
    • 한국가금학회지
    • /
    • 제15권4호
    • /
    • pp.269-275
    • /
    • 1988
  • 단백질 수준이 18%인 초생추 사료와 12%인 비육우 후반기 사료를 입자도의 크기에 따라 전 사료의 80%가 1.19mm 이하인 것과 전 사료의 40%가 1.19mm 이하인 것으로 나누어서 40일간 저장후 각 처리구의 영양소 변화를 비교하였다. 영양소 변화를 비교한 후 초생추 사료만을 이용하여 입자의 크기를 다르게 하여 항곰팡이제를 처리한 사료와 처리하지 않은 사료에 대한 병아리의 성장 및 사료이용 정도 그리고 장기의 발달을 비교하였다. 항곰팡이가 처리되지 않은 사료에서는 2개의 다른 단백질 수준에서 공히 지방과 카로틴 함량은 현저히(P<0.05) 감소를 초래하였다. 항곰팡이제가 처리된 사료에서도 입자 크기가 1.1mm 보다 작은 것이 전체 사료의 40% 이하인 구에서는 지방과 카로틴의 함량이 40일간의 저장 후 에는 감소하는 추세를 보였다. 또 입자가 큰 사료에서 항곰팡이제를 처리하지 않았을 때는 신선한 사료나 항곰팡이제를 처리한 구에 비교하여 병아리의 성장이나 사료 섭취량은 현저히 감소(P<0.05)를 나타냈다. 사료효율 역시 항곰팡이제를 처리하지 않은 구에서 현저히 맞았다. (P<0.05), 그러나 각 장기의 무게에는 처리간에 차이를 나타내지 못하였다.

  • PDF

배합사료에 대한 항곰팡이제의 효과적인 처리 방법과 사료내 영양소 보전 방법 I. 사료의 입자 크기와 사료내 단백질 수준이 항곰팡이제의 작용에 미치는 영향 (Studies on Factors to Increase Mold Inhibitor Effectiveness In Livestock Rations I. Effects of Particle Size and the Levels of Protein in the Ration on the Usage of a Mold Inhibitor)

  • 남기홍;남기석
    • 한국가금학회지
    • /
    • 제15권4호
    • /
    • pp.261-268
    • /
    • 1988
  • 단백질 수준이 각각 18%(초생추 사료)와 12% (비육우 사료)인 사판 사료를 사료 입자 크기로 나누어서 1.1mm이하가 전사료에 대한양외 80%와 40%인 것으로 만든 다음 각각 다른 단백질 수준과 입자 크기가 배합 사료내에 함유된 항곰광이제(0.1% W/W)의 효능에 어떻게 영향을 미치는지에 관하여 연구하였다. 시험 사료내에 함유된 수분의 함량은 12.6% (초생추 사료)와 12.7%(비육우 사료)였다. 시험 사료를 각 처리 별로 1kg씩 나누어 플라스틱통에 넣은 후 뚜껑을 약간 열어둔 상태로 상대습도가 85% 저장 온도를 $29{\pm}$$1^{\circ}C$ 되게 유지시킨 채 5일에서 40일 동안 보전한 후 곰팡이수, 생성된 탄산 가스양 그리고 생성된 아플라 톡신의 양을 측정하였다. 형성된 곰팡이 수(P<0.05)와 탄산가스 발생양(P<0.01)은 항곰팡이제가 가해졌을 때 사료의 입자 크기가 1.1mm이하인 것이 전사료의 40%인 구에서 현저히 높았으나 단백질 수준의 차이는 항곰팡이제의 작용에 영향을 미치지 못했다. 그러나 아플라 톡신의 생성은 사료중의 단백질 수준이 높을 수록 많았고(P<0.05) 또 입자가 큰 것이 많은 사료일수록 현저히 높았다(P<0.05).

  • PDF

사료내 곰팡이 발육 억제제의 효과에 관한 연구 - Mold-X의 효과에 관한 연구 - (Studies on Effect of Mold Inhibitor in Corn - Study on Inhibitory Effect of Mold-X -)

  • 윤화중;장경진;김태종;원송대
    • 대한수의사회지
    • /
    • 제18권7호
    • /
    • pp.27-34
    • /
    • 1982
  • 본 연구팀은 1981년 10월 부터 1982년 3월까지 시행한 광범위 곰팡이 발육억제제인 Mold-X의 효과에 관한 시험을 시행한 결과 그 성적을 요약하면 다음과 같다. 1. $12\%$의 수분함량이 함유된 옥수수와 옥수수가루 저장에 있어서의 250ppm수준의 Mold-X가 곰팡이의 발육을 억제하였다. 2 수분이 많이 함유된 배지에서 곰팡이의 발육을 억제할 수 있는 Mold-X의 함량은 500ppm수준이었다.

  • PDF

닭에 있어서 Aspergillosis 증례 및 곰팡이 발육억제제의효과에 관한 연구 (A Case of Avian Aspergillosis and Effect of Mold Inhibitor)

  • 박세종;김선희;신인환;안신욱;정태수
    • 한국동물위생학회지
    • /
    • 제17권2호
    • /
    • pp.83-88
    • /
    • 1994
  • The studies were carried out to diagnose of disease chickens that were raised at the chicken farms located in Chung -nam province and evaluated potential of mold growth inhibition of antifungal agent, Mold-X. The diseased 25 chickens that were shown clinical sign such as anorexia, respiratory symptoms, were suspected aspergillosis. The results obtained were summarized as follows ; 1. The diseased thickens were diagnosed aspergillosis according to clinical sign, pathological finding, isolation of etiological agent. 2. The growth of mold was conciderable inhibited by the Mold-X of 300 ppm level.

  • PDF

Influence of a Novel Mold Inhibitor on Mechanical Properties and Water Repellency of Bamboo Fiber-based Composites

  • Qi, Yue;Huang, Yu-Xiang;Ma, Hong-Xia;Yu, Wen-Ji;Kim, Nam-Hun;Zhang, Ya-Hui
    • Journal of the Korean Wood Science and Technology
    • /
    • 제47권3호
    • /
    • pp.336-343
    • /
    • 2019
  • Effects of a novel mold inhibitor specifically for bamboo, on the properties of composite products have been confirmed in this study. The mechanical and dimensional stability properties of bamboo fiber-based composites (BFBCs) from different bamboo species were also investigated. The results showed that Burmanica Gamble possessed the highest values of modulus of elasticity (MOE) of 33.2 GPa, modulus of rupture (MOR) of 286.9 MPa, compressive strength of 182.6 MPa and shear strength of 24.0 MPa. By contrast, Phyllostochys heterocycla among all of species showed the lowest MOE of 16.3 GPa, MOR of 170.3 MPa and compressive strength of 128.9 MPa were the lowest among all of species. Moreover, there is a remarkable variation in the swelling and water absorption between the samples with 4 h and 28 h water immersion treatment, especially Phyllostachys iridenscens. Overall, the results suggested that TCIT (Tebuconazole and 3(2H)-isothiazolone) had no significant effect on the mechanical properties compared with the control condition, and it would be utilized as an antimould of BFBCs manufacturing.

사료 중의 곰팡이와 곰팡이 독소에 대한 문제점과 가능한 대책 (Problems and Possible Solutions about Feed Fungi and Mycotoxins)

  • 남기홍
    • 한국가금학회지
    • /
    • 제21권2호
    • /
    • pp.113-117
    • /
    • 1994
  • Of the 200, 000 known species of molds, only 50 or 60 are known to be harmful to humans or livestock. Certain fungi that grow on grains and grasses can produce chemical substances called mycotoxins that adversely affect performance in poultry. There are several methods of preserving feed ingredients. The list includes: drying, antioxidants, mold inhibitors, organic acids, phosphates, cooking or toasting, fat extraction, blending and fermenting. Mold inhibitors are manufactured to inhibit mold growth and prevent the production of toxic substances. They are fungistats and not fungicides, that is, they only stop the growth of molds. Practical and cost-effective methods to detoxify mycotoxin containing feedstuffs are in great demand. 0.5% hydrated sodium calcium aluminosilicate added to the diet protected chicks from the deleterious effects of aflatoxin-contaminated feed. The dietary addition of antioxidants and methionine also significantly diminished the negative effects on body weight in chicks toxicated with 3.0 ppm aflatoxin B1.

  • PDF

석이(Umbilicaria esculenta) 추출물에 의한 식후 혈당강하작용 (Effect of extract from Umbilicaria esculenta on postprandial hyperglycemia)

  • 이경애;김무성
    • 생약학회지
    • /
    • 제31권1호
    • /
    • pp.101-104
    • /
    • 2000
  • An inhibitory activity against ${\alpha}-glucosidase$ was identified in extract of an edible lichen, Umbilicaria esculenta. The inhibitor was very stable retaining above 95% of its original activity when treated with heat, acid and alkaline conditions, and some hydrolytic enzymes. Partially purified inhibitor showed strong inhibition against disaccharide hydrolytic enzymes of mammalian and mold origin, but weak or no inhibition against polysaccharide hydrolytic enzymes except glucoamylase. The inhibitor suppressed elevation of blood glucose level in rats after oral administration of soluble starch or sucrose.

  • PDF

식후 혈당강하작용에 대한 매화지의류 추출물의 효과 (Inhibitory Effect of Extracts from Parmelia austrosinensis and P. praesorediosa on Postprandial Hyperglycemia)

  • 이경애;정혜영
    • 한국식품영양학회지
    • /
    • 제13권2호
    • /
    • pp.134-138
    • /
    • 2000
  • An inhibitory activity against ${\alpha}$-glucosidase was identified in extracts of medicinal lichens, Parmelia austrosinensis and P. praesorediosa. The extracts retained almost all of their original activities when treated with heat, acid and alkaline conditions, and some hydrolytic enzymes. Partially purified inhibitor showed strong inhibition against disaccharide hydrolytic enzymes of mammalian and mold origin, but weak or no inhibition against polysaccharide hydrolytic enzymes except glucoamylase. The inhibitors from the two Parmelia sp. showed almost same retention time in HPLC. The inhibitor suppressed elevation of blood glucose level in rats after oral administration of soluble starch or sucrose.

  • PDF

Synergistic Interactions of Schizostatin Identified from Schizophyllum commune with Demethylation Inhibitor Fungicides

  • Park, Min Young;Jeon, Byeong Jun;Kang, Ji Eun;Kim, Beom Seok
    • The Plant Pathology Journal
    • /
    • 제36권6호
    • /
    • pp.579-590
    • /
    • 2020
  • Botrytis cinerea, which causes gray mold disease in more than 200 plant species, is an economically important pathogen that is mainly controlled by synthetic fungicides. Synergistic fungicide mixtures can help reduce fungicide residues in the environment and mitigate the development of fungicide-resistant strains. In this study, we screened microbial culture extracts on Botrytis cinerea to identify an antifungal synergist for tebuconazole. Among the 4,006 microbial extracts screened in this study, the culture extract from Schizophyllum commune displayed the most enhanced activity with a sub-lethal dosage of tebuconazole, and the active ingredient was identified as schizostatin. In combination with 5 ㎍/ml tebuconazole, schizostatin (1 ㎍/ml) showed disease control efficacy against gray mold on tomato leaf similar to that achieved with 20 ㎍/ml tebuconazole treatment alone. Interestingly, schizostatin showed demethylation inhibitor (DMI)-specific synergistic interactions in the crossed-paper strip assay using commercial fungicides. In a checkerboard assay with schizostatin and DMIs, the fractional inhibitory concentration values were 0.0938-0.375. To assess the molecular mechanisms underlying this synergism, the transcription levels of the ergosterol biosynthetic genes were observed in response to DMIs, schizostatin, and their mixtures. Treatment with DMIs increased the erg11 (the target gene of DMI fungicides) expression level 15.4-56.6-fold. However, treatment with a mixture of schizostatin and DMIs evidently reverted erg11 transcription levels to the pre-DMI treatment levels. These results show the potential of schizostatin as a natural antifungal synergist that can reduce the dose of DMIs applied in the field without compromising the disease control efficacy of the fungicides.