• 한국산업보건학회지
• /
• 제17권4호
• /
• pp.335-342
• /
• 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.

• Journal of Microbiology and Biotechnology
• /
• 제11권5호
• /
• pp.772-775
• /
• 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.

• 한국대기환경학회지
• /
• 제22권2호
• /
• pp.191-199
• /
• 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.

• KSBB Journal
• /
• 제23권4호
• /
• pp.345-349
• /
• 2008

본 연구는 에탄올 생산 부산물인 주정박의 사료로서의 가치를 향상시키고 효소 활성을 유지하면서 아미노산이 다량 함유된 발효 사료를 개발하기 위한 고체 발효 조건을 최적화하는데 목적을 두었다. 사용된 균주의 pH에 대한 영향을 살펴본 결과, pH 4에서 효소 활성이 우수하였으며 또한 이 조건은 낮은 pH 조건이므로 잡균에 대한 오염도 예방 할 수 있어 본 실험의 최적 액체배양 조건임을 확인할 수 있었다. 고체 배양을 위한 배양 조건 탐색에서는 60%의 수분을 함유한 고체 배양에서 가장 좋은 효소 활성의 결과를 나타내었으며 적정 배지 조성을 위한 혼합 비율 탐색의 경우 밀기울 함량이 높고 DDG 함량이 낮을수록 효소 활성은 좋았으나 아미노산 함량은 낮은 반면, DDG 함량이 높고 밀기울 함량이 낮을수록 효소 활성은 낮았지만 아미노산 함량은 높은 결과를 나타내었다. 따라서 효소활성 ($\geqq$ 1,000 U/g) 및 아미노산 함량 ($\geqq$ 28%)이 적당한 고체 발효 배지 조성의 비율은 DDG와 밀기울이 1 : 4였다. 이렇게 해서 얻어진 결과로 약 1 ton 정도의 발효 사료 시제품을 생산하였으며 시제품의 효소활성과 조단백질 함량은 각각 1,024 U/g과 33.6%였다.

• Journal of Animal Science and Technology
• /
• 제48권2호
• /
• pp.227-236
• /
• 2006

본 연구는 맥주박과 옥수수 위주의 발효사료에 대한 coated vitamin C+E 및 면실의 첨가 급여가 거세한우의 육조성분, 육색 및 도체등급에 미치는 영향을 구명하고자 평균체중 550.4±42.8kg의 거세한우 24두를 공시하여 실시하였다. 시험구 배치는 발효사료급여구(T1)와 coated vitamin C+E 및 면실 첨가 발효사료구(T2)의 2처리로 하였다. 배최장근의 조지방 함량은 T2구에서 T1구에 비해 높았다(p< 0.05). 배최장근의 표면 육색 중 황색도와 색상색은 T2구에서 T1구에 비해 낮았고(p<0.05) 명도는 T1구에 비해 T2구에서 높았다(p<0.05). 육량 A 등급의 출현은 T2구에서 T1구에 비해 높았다. 근내지방도는 T1구에 비해 T2구에서 높았다. 이상의 결과에서 맥주박과 옥수수 위주의 발효사료에 대한 CVCE 및 면실의 첨가는 거세한우 배최장근의 조지방 함량, 육색 및 근내지방도에 효과적인 것으로 판단된다.

• 대한환경공학회지
• /
• 제31권1호
• /
• pp.35-41
• /
• 2009

본 연구는 토착미생물에 의한 발효기작을 이용하여 음식물쓰레기를 동물 사료로 이용하기 위한 가능성을 평가하기 위하여 수행되었다. 이를 위하여 효소활성 실험을 통하여 anylase, protease, lipase에 대한 우수활성을 나타내는 토착유효미생물을 토양으로부터 분리하여 음식물쓰레기의 사료화를 위한 발효제로 사용하였다. 16s rDNA sequencing의 분석을 통해 우수활성을 나타내는 미생물(H1, D1)은 Bacillus subtilis와 Paenibacillus polymyxa인 것으로 확인되었다. 사료화 실험에서는 수분과 영양소 함량의 조절을 위하여 쌀겨 및 팽화미를 음식물쓰레기에 혼합하여 사료화를 위한 시료로 사용하였으며 효소활성 실험을 통해 분리된 2종의 미생물(Bacillus subtilis, Paenibacillus polymyxa)을 발효제로 사용하여 사료화 실험을 진행하였다. 발효실험 동안의 온도, pH 및 ORP 측정을 통해 토착유효미생물의 접종에 의한 음식물쓰레기의 발효가 효과적으로 진행됨을 확인할 수 있었다. 반응종료후 제조된 사료의 영양분 분석 결과에서 조단백질, 조지방, 조섬유은 동물 급여에 충분한 함량을 나타내었다. 또한 Pb, Hg, Cd, aflatoxin 및 salmonella 등의 유해물질의 분석결과 모든 항목이 허용기준치 이하의 값을 나타내었다. 따라서 토착유효미생물을 이용한 음식물쓰레기의 사료화는 동물의 사료로써 충분히 활용될 수 있을 것으로 기대된다.

• 한국유기농업학회지
• /
• 제17권4호
• /
• pp.463-481
• /
• 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.

• 한국생물공학회:학술대회논문집
• /
• 한국생물공학회 2003년도 생물공학의 동향(XIII)
• /
• pp.246-246
• /
• 2003

• KSBB Journal
• /
• 제27권4호
• /
• pp.243-250
• /
• 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.

• Journal of Ginseng Research
• /
• 제3권1호
• /
• pp.54-65
• /
• 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.