• Title/Summary/Keyword: feedstuff

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Distribution of airborne microorganism in the feedstuff manufacture factory (사료제조공장 내 공기 중 세균과 진균 분포에 관한 연구)

  • Kim, Ki-Youn;Jeong, Youn-Il;Kim, Chi-Nyon;Won, Jong-Uk;Roh, Jaehoon
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.17 no.4
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    • pp.335-342
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    • 2007
  • The objective of the study is to investigate the distribution patterns of airborne bacteria and fungi in the feedstuff manufacture factory. The mean levels of airborne bacteria and fungi in the feedstuff manufacture factory were $113({\pm}18)cfu/m^3$ and $89({\pm}5)cfu/m^3$ for pelleting process and $198({\pm}5)cfu/m^3$ and $124({\pm}12)cfu/m^3$ for powdering process, respectively. The percentage of respirable and total concentration of airborne bacteria and fungi in the feedstuff manufacture factory ranged from 60% to 90% and were higher in pelleting process than powdering process. The ratio of indoor and outdoor airborne microorganism exceeded 1.0 regardless of types of feedstuff manufacture process. Based on the result of the study, there would be an association between environmental factors such as relative humidity and carbon dioxide and airborne microorganism's bioactivity.

$Co_{2}$ Fixation by Chlorella KR-1 Using Flue Gas and its Utilization as a Feedstuff for Chicks

  • Lee, Jin-Suk;Kim, Deog-Keun;Lee, Joon-Pyo;Park, Soon-Chul;Koh, Jong-Ho;Ohh, Sang-Jip
    • Journal of Microbiology and Biotechnology
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    • v.11 no.5
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    • pp.772-775
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    • 2001
  • A highly $CO_2$ tolerant microalga, Chlorella KR-1, has been isolated and used to fix $CO_2$ from actual flue gas. Growth of Chlorella KR-1 with the supply of flue gas from a liquified natural gas boiler was comparable to that obtained with 10% $CO_2$. Chlorella KR-1 produced from $CO_2$ fixation using the flue has about 50% crude protein with balanced amino acid profiles. Toxicity was not detected when the microalga was used as a feedstuff for chicks. These results indicate that the KR-1 cells could be a favorable protein source for poultry.

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Filtration Characteristics of the Fugitive Dust Emitting from Animal Feedstuff Handling (사료 부원료 하역과정에서 발생하는 비산먼지의 여과특성)

  • Bang Jin-Chul;Han Se-Hyun;Jung Yong-Won
    • Journal of Korean Society for Atmospheric Environment
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    • v.22 no.2
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    • pp.191-199
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    • 2006
  • Animal feedstuff handling is one of the major fugitive dust sources in the port of Incheon. For the effective control of fugitive dusts emitting from the port of Incheon, dust control facilities with bag filter systems should be designed properly considering the characteristic of the fugitive dusts including those from animal feedstuffs. The ultimate goal of this study is thus to develop the optimum fugitive dust control system which will be applicable for the renovation of the port. As the first step to achieve this longstanding goal, filtration characteristics of soybean shell, the largest dust sources in the port, were investigated with the specially designed filter testing apparatus for this study. The variables tested for the experiments included filter materials, dust concentrations, relative humidities, and filtration velocities. Also, the filtration characteristics of the other animal feedstuffs such as sunflower seed shell, tapioca, and palm shell were investigated to determine $K_2$ as a function of filtration velocity. The information on $K_2$ will be used to design the optimum bag filter systems for animal feedstuffs handling in the port.

Optimization of Solid-State Fermentation Condition Using Distiller's Dried Grain (주정박을 이용한 고체발효 조건의 최적화)

  • Choi, Gi-Wook;Moon, Se-Kwon;Kim, Yule;Jang, Byung-Wook;Kim, Young-Ran;Chung, Bong-Woo
    • KSBB Journal
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    • v.23 no.4
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    • pp.345-349
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    • 2008
  • To enhance the value as a feedstuff of distiller's dried grain (DDG) and develop fermented feedstuff, we investigated the effects of the culture conditions affecting glucoamylase activity, such as pH in submerged culture and moisture content in solid-state culture. Also, we investigated the optimal mixing ratio of DDG and wheat bran for the production of fermented feedstuff containing high content of amino acids. In culture conditions for high fermented activity, pH and moisture were optimum at pH 4 and 60%, respectively. In the case of mixing ratio, the glucoamylase activity was decreased with increase of DDG content. On the other hand, the content of crude protein was increased slowly. For the development of fermented feedstuff, the optimal mixing ratio of DDG and wheat bran was 1 to 4. Finally, we could produce approximately 1 ton (dry matter) of trial product in incubator of pilot-scale. The glucoamylase activity and the crude protein content were 1,024 U/g and 33.6%, respectively.

Effects of Supplementing Coated Vitamin C+E with Cottonseed on Meat Composition, Meat Color and Carcass Grade in Hanwoo Steers Fed Brewers Grain and Cracked Corn-Based Fermented Feedstuff (맥주박과 옥수수 위주의 발효사료에 대한 Coated Vitamin C+E 및 면실의 첨가가 거세한우의 육조성분, 육색 및 도체등급에 미치는 영향)

  • 박병기;성대경;김창혁;권응기;오상집;신종서
    • Journal of Animal Science and Technology
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    • v.48 no.2
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    • pp.227-236
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    • 2006
  • Twenty four Hanwoo steers(average body weight=550.4±42.8kg) were used in the experiment to determine the effects of supplementing coated vitamin C+E with cottonseed on meat quality, meat color and carcass grade in Hanwoo steers fed brewers grain and cracked corn-based fermented feedstuff. Steers were randomly assigned to feeding groups of fermented feedstuff without any supplements(T1) and fermented feedstuff supplemented with coated vitamin C+E and cottonseed(T2). Ether extract content of longissimus dorsi was higher in T2 than in T1(p<0.05). Yellowness and hue-angle among surface colors of longissimus dorsi was lower(p<0.05) in T2 than in T1 but lightness was higher(p<0.05) in T2 than in T1. Ratio of yield grade ‘A’ was higher from T2 group than from T1 group. Marbling score was higher in T2 than in T1(p<0.05). Present results indicate that supplementation of coated vitamin C+E and cottonseed to brewers grain and cracked corn-based fermented feedstuff has positive effects on ether extract content, color, marbling score of longissimus dorsi in Hanwoo steers.

Resource of Food Waste using Indigenous Bacteria Isolated from Soils (토양으로부터 분리한 토착유효미생물을 이용한 음식물쓰레기의 자원화)

  • Lee, Sang-Woo;Ham, Sun Nyeoo;Shin, Taek-Soo;Kim, Hye-Kyung;Yeon, Ik-Jun;Kim, Kawng-Yul
    • Journal of Korean Society of Environmental Engineers
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    • v.31 no.1
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    • pp.35-41
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    • 2009
  • This study was conducted to investigate feasibility of feedstuff for animal using food waste by fermentation mechanism of indigenous microorganism. To achieve this purpose, indigenous bacteria was isolated from soils to use as an inoculant. Enzyme test was performed to verify activity of amylase, protease and lipase using isolated bacteria. Bacteria(H1, D1), which vigorously express the enzyme activity, was selected and used in the fermentation experiments of food waste. From the analysis of 16s rDNA sequencing, H1 and D1 were identified as Bacillus subtilis and Paenibacillus polymyxa, respectively. In the fermentation experiment, food waste was mixed with rice bran and popped rice to control moisture and nutrient content. Isolated bacteria(B. subtilis and P. polymyxa) was used as an inoculant. From the measured data such as temperature, pH and ORP, it can be verified that food waste adding the indigenous bacteria was effectively fermented. From the nutritional analysis of manufactured feedstuff, it showed that the contents of crude protein, crude fat and crude fiber were enough to use as feedstuff for animal. In addition, harmful components such as Pb, Hg, Cd, aflatoxin and salmonella concentration were not exceeded permitted standards. Therefore, fermented food waste using indigenous bacteria can be used as feedstuff.

A Case Study on the Regional Agricultural Cluster at Asan Area (지역농업 클러스터의 추진사례에 관한 연구 - 아산시 자원순환형 친환경지역농업 클러스터를 중심으로 -)

  • Kim, Ho
    • Korean Journal of Organic Agriculture
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    • v.17 no.4
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    • pp.463-481
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    • 2009
  • Regional Agricultural Cluster(RAC) at Asan area has been formed with Purundeul farming union corporation(Purundeul) as the center from the year 2005. Originally, RAC has been proceeded by Ministry for Food, Agriculture, Forestry and Fisheries (MFAFF) all over the nation from 2005. This RAC has helped Asan area to establish the foundation of environmentally friendly agriculture(EFA) searching for nutritional cycle. This also made jumping age turn developing age in EFA at Asan area. The number of Purundeul producer members was 386 farmers in 2008. Purundeul introduced organic livestock farming(Korean beef cattle; Hanwoo) for proceeding EFA searching for nutritional cycle in 2007, and had 719 cattle at the end of March 2009. Feedstuff materials for organic livestock is mostly produced from seeding farming by-products within Asan or the country. Asan RAC had built factories for feedstuff producing and beef processing with producers' investment.

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Effect of Feedstuffs on Mineral Composition, Antioxidant Capacity, and Protection of Neuronal PC-12 Cells of Deer Antlers (녹용의 무기질 조성, 항산화능 및 PC-12 신경 세포 보호능에 대한 급여 사료의 영향)

  • Cho, Chi-Heung;Lee, Bong-Han;Kim, Hae-Yeong;Kim, Young-Chae;Kim, Dae-Ok
    • KSBB Journal
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    • v.27 no.4
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    • pp.243-250
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    • 2012
  • The ash content, mineral composition, total phenolics, antioxidant capacity, and neuroprotective effect of the antlers of deer fed with herb-incorporated feedstuff (HFS) or normal feedstuff (NFS) were comparatively evaluated. The contents of ash and mineral of the antler of deer fed with HFS were significantly lower than its counterpart. The ash and mineral contents of deer antlers decreased generally from the upper section toward the tip section. The ratios of Ca/ash, Ca/P, and Ca/Fe of antler of deer fed with HFS were lower than those of antler of deer fed with NFS. Antlers of deer fed with HFS had higher total phenolics, nitrite scavenging capacity, and antioxidant capacity than those of deer fed with NFS. Antlers of deer fed with HFS or NFS showed in vitro neuronal protection of PC-12 cells against oxidative stress in a dose-dependent manner, where antler of deer fed with HFS generally had higher cellular viability than NFS. These results above suggest that the incorporation of the medicinal herbal complex into feedstuff may improve the biological effects of deer antlers.

The Influence of Paaax Ginseng Meal on the Milk Production and Milk Quality of Lactating Milk Cow (유중의 유우에 인삼박 급여가 유생산 및 우유품질에 미치는 영향)

  • 한석현;주현규
    • Journal of Ginseng Research
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    • v.3 no.1
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    • pp.54-65
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    • 1979
  • To investigate the feeding value of the concentrated feedstuff including the Korean ginseng meal instead of wheat bran, Holstein milk cows were fed by this feedstuff (10kg/day) for 80 days, and the amounts of milk production and quality of milk were checked. The results are as follows: 1. Milk production of cows fed by the concentrated feedstuff including the ginseng meal was increased as averaged as 1.25kg/day compared with those of controlled cows during same period(SA) and before feeding treatment (SB). Significant different of milk production was found between cows treated and cows of SB plot, but there was no significant difference of milk production between cows treated and cows of SA plot. 2. Milk fat content was significantly increased as moth as 0.22%, 0.69% and 0.455% by the feeding of ginseng meal compared with that of SB Plat and that of SA Plot, and as average value, respectively. 3. Solid not fat (SNF) of milk from cows fed by the ginseng meal was also significantly increased as much as 0.845%, 1.339% and 1.0925 tempered with these of cows before treatment (SB) and cows controlled (SA), and as average value, respectively. 4. Specific gravity of milk produced from cows treated was higher as average as 0.0055 than those of controlled plots (SA and SB). Significant difference of specific gravity was found between cows treated and cows of SA plot, but there was no significant difference between tows treated and cods of SB plot. 5. Acidity of milk produced from cows treated was lower as averaged as 0.0045 than those of controlled plots (SA and SB). Significant difference between cows treated and cows of SA plot was found, but there was no significant difference between cows treated and cows treated and cows of SB plot.

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