• KOREAN POULTRY JOURNAL
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• v.36 no.5 s.415
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• pp.108-110
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• 2004

사료가격 인상. 외국산 축산물의 유입. 힘들게 생산해도 판로가 없다. 우리나라의 현실이다. 일본 역시, 사료원료의 수입과 외국산 농축산물이 수입 그리고 경기침체로 인한 소비부진, 저난가 사료가격 인상이라는 공통점을 가지고 있는 일본 산란계 농가의 현황을 알고 싶어서 농장에 체류하면서 일본 산란계 농장을 경험하였다. 필자가 방문한 곳은 고상식계사로 250,000수 수용이 가능하고 자체 GP시설을 가동하면서 판매점으로 직판하는 곳이었다.

• Life and Agrochemicals
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• s.262
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• pp.28-29
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• 2010

영국 리즈대학과 요크대학의 연구팀은 친환경 유기농장을 유지하는 것보다 기존 농장 주변으로 자연 생태계 지역을 완충지로 두는 것이 식량 생산에 더욱 효과적이라는 연구결과를 냈다. 친환경 유기농업은 상대적으로 수확량이 적어 개간 면적이 넓어지기 때문에 결국 생태계에 악영향을 끼치게 될 것이란 분석이다.

• KOREAN POULTRY JOURNAL
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• v.24 no.6 s.272
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• pp.136-138
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• 1992

브로일러 사육과정에서 3주 이후에 흔히 발생하는 다리, 관절, 발톱 등의 이상으로 압사 또는 발육부전이 나타나 외모가 흉스러운 상품으로 인하여 경제적 손실과 사료요구율을 저하시키는 예가 종종 발생한다. 이때 농장에서는 급여사료의 미량성분 부족이나 병아리의 불량추에서 발생하는 것으로만 생각할 수 있으나 그 요인은 여러 가지가 있을 수 있어 최근 외국에서의 문헌에 실질적인 발생요인을 기술하였기에 인용, 기고하여 각 농장에서 피해를 최소화할 수 있도록 조치하는데 도움이 되었으면 한다.

• KOREAN POULTRY JOURNAL
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• v.25 no.11 s.289
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• pp.136-141
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• 1993

산란계나 종계의 육추, 육성, 성계기에 있어 체중이 낮은 병아리는 계군 전체의 평균체중을 끌어내릴 뿐 아니라 체력이 약하여 육성율, 생존율, 산란율을 저하시키는 주요원인이 되고 있다. 이같은 사실은 육계에서도 같은 결과를 보이고 있어 육계 농장에서의 질병과 관리 및 이에 따른 경제성 개선에 관한 내용을 실예를 들어 살펴보기로 한다.

• KOREAN POULTRY JOURNAL
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• v.39 no.4 s.450
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• pp.97-99
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• 2007

발명왕 에디슨은 주변의 놀림에도 불구하고 도전을 마다하지 않았기에 지금의 발명왕으로 거듭날 수 있었다. 에디슨 같은 발명가가 있었기에 우리가 살고 있는 현재도 발전을 거듭 할 수 있었다. 우리 양계분야에서도 좋은 계란의 생산을 목표로 역경에서도 굴하지 않고 에디슨처럼 끊임없이 새로운 제품개발에 도전을 하고있는 양계농가 현장이 있어 소개하고자 한다.

• KOREAN POULTRY JOURNAL
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• v.54 no.10
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• pp.112-115
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• 2022

현재 농촌의 고령화, 코로나-19로 인한 외국 인력 감소 등으로 농장 운영에 인력의 문제가 커지고 있다. 인력 자율화를 위해 스마트 축사에 대한 수요와 지원사업이 커지는 가운데 양계산업에도 자동화시스템, 스마트 축사에 대한 관심이 계속되고 있다. 이에 본지는 자동화 시스템을 넘어선 ICT 사업으로 최적의 사양관리로 경쟁력을 강화하고 있는 경기 연천군의 팜메이존의 진용일 대표를 만났다.

• Korean Journal of Poultry Science
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• v.33 no.4
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• pp.295-301
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• 2006

This study has been designed to evaluate the efficacy of MD in-ovo vaccination in broiler and to find the contamination level of MD virus in broiler farms. A nested PCR test was used to find the level of filed contamination of pathogenic MD virus in the commercial broiler farms. The positive rate of farms contaminated with pathogenic MD virus was 26.09%. And to evaluate the efficacy of MD vaccination, performance factors such as the mortality, feed conversion rate and body weight at market age has been recorded and compared among farms. There was no difference on these factors between vaccinated and non-vaccinated farms except performance. We need further investigation of the film with low performance index. The B/B ratio, which is common index for the evaluation of bursal changes, was calculated and compared between vaccinated and non-vaccinated group There were significant decreases of B/B ratio in the both group without any statistical difference between groups. The reason of decreased bursal size may be due to other infection such as IBD. From this study, we can know that the contamination rate of fm with pathogenic MD virus was very low and not different from previous study. However, the difference of the contamination rate in different locations recommends periodical monitoring on these areas.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.12 no.6
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• pp.672-680
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• 2019

This paper proposes "A Smart Farm Environment Optimization and Yield Prediction Platform based on IoT and Deep Learning" which gathers bio-sensor data from farms, diagnoses the diseases of growing crops, and predicts the year's harvest. The platform collects all the information currently available such as weather and soil microbes, optimizes the farm environment so that the crops can grow well, diagnoses the crop's diseases by using the leaves of the crops being grown on the farm, and predicts this year's harvest by using all the information on the farm. The result shows that the average accuracy of the AEOM is about 15% higher than that of the RF and about 8% higher than the GBD. Although data increases, the accuracy is reduced less than that of the RF or GBD. The linear regression shows that the slope of accuracy is -3.641E-4 for the ReLU, -4.0710E-4 for the Sigmoid, and -7.4534E-4 for the step function. Therefore, as the amount of test data increases, the ReLU is more accurate than the other two activation functions. This paper is a platform for managing the entire farm and, if introduced to actual farms, will greatly contribute to the development of smart farms in Korea.

• Land and Housing Review
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• v.3 no.4
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• pp.315-322
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• 2012

Recently multifaceted advantages of urban agriculture are emerging in civil society and related policy arena such as food safety, environment, and social welfare. This study tried an estimation of residents' willingness-to-pay for urban farming to examine feasibility of using part of urban green infrastructure as urban farm (e.g. allotment garden). A survey targeting Bundang and Dontan new-town residents was carried out and willingness-to-pay for urban farm rental was estimated by contingent valuation method (CVM). The estimated rent was cross-checked with the rental cost and travel cost paid by hobby farm users in the outskirt of metropolitan area. The result of this study showed that the potential demand for urban farming is ample if urban farms or allotment gardens are planned within new development areas. That is, 72.6 percent of new-town residents questioned had intention of using allotment garden within urban parks and green spaces. Estimated willingness-to-pay for renting a plot, $16.5m^2$ of urban farm, was about 236,000 won(KRW), which is higher than rent for a plot of allotment garden which is located out of city. Variables which were statistically significant to estimated willingness-to-pay for urban farming were sex, age, and occupation of respondents, among other explanatory socio-demographic variables, while expected frequency and duration of visit to urban farm were insignificant.

• Journal of Life Science
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• v.32 no.9
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• pp.706-711
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• 2022

Broiler chickens are exposed to various stresses throughout their lives, and those stresses affect their well-being and meat quality. Therefore, the farm breeding system is critical for reducing stress in broilers and improving animal welfare. This study was conducted to evaluate the difference between general farms and animal welfare farms and to evaluate feather corticosterone as an index for measuring stress. Samples of 28-day-old broilers (blood, feathers, and muscle) were collected from slaughter-houses, and corticosterone, along with HSP70, glycogen, and L-lactate, were extracted from feathers and serum as indicators of broiler stress levels and energy metabolism. The analysis results confirmed a significantly (p<0.01) higher feather cortisone level in the general farm group than in the welfare farm group, but no significance was detected for serum corticosterone. HSP70 levels did not differ in muscles and feathers. Glycogen levels were significantly higher in the general farm group than in the welfare farm group (p<0.01), but L-lactate levels showed no difference. Our results suggest that feather corticosterone can be used as an indicator to evaluate stress differences between general farms and animal welfare farms and that long-term stress can be assessed.