• KOREAN POULTRY JOURNAL
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• v.43 no.4
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• pp.130-135
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• 2011

본고는 미국 육계사육 농가들이 미국 농업부(USDA)와 법무부(DOJ)가 PSA(도축업자 관련법) 개정안 관련 여론을 수렴하기 위하여 주관하는 각종 회의에서 제공한 생생한 증언을 입수하여 번역한 것이다. 미국에서도 계열화 사업과 관련하여 불공정 사례, 상대평가에 대한 불만 등이 표출되고 있음을 알 수 있다.

• Journal of Animal Environmental Science
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• v.11 no.3
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• pp.169-176
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• 2005

The farm house structure, ventilation system and manure treatment of two-storey buildings and sawdust pig houses were surveyed and analyzed. Based on the data for ten selected farms in five provinces during eight months, the goal is to eventually establish a standard two-storey pig house. Manure treatments were composting, slurry and activated sludge in two-storey pig houses, while fermentation method was done in sawdust pig house. The depth of sawdust as a litter material were 10 to 60cm, with a duration of 1/2, 1, 3 and 6 months, respectively. The ventilation systems were the mechanical type in two-storey pig houses and natural system in the sawdust pig house. Side wall in the two-storey pig house was enclosed with insulation materials such as block, colored metal sheet and sandwich panels. The minimum ceiling height in the first floor of the two-storey pig house was 2.0m and the maximum was 3.0m. On the second floor, ceiling height ranged from 2.0 to 2.7m. The construction cost in the two-storey systems were $700\~140$, and sidewall curtain systems were $30\~40$ thousand Won/pyung.

• Journal of Bio-Environment Control
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• v.7 no.2
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• pp.91-108
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• 1998

This study was carried out to survey basic information of swine farms on the machine holdings. facility type. management of manure by farm scale and operation, and then to develop the mechanization model. Manual feeding was common for sows and nursing sows. but automation feeding was normally furnished for weaners. growing pigs and castrated male pigs. Water supplies was completely automated for all of the surveyed swine farms. Fully mechanized and automated system would not be feasible and affordable for the small scale farms breeding less than 500 heads. Because the environmental control for the nursing sows and weaner was important, some swine houses were constructed with the windowless type. However, the furnished rates ranged from 22.2% to 44.4% of the surveyed nursing sow and weaner houses at the farm scales. In the future, a computerized ventilation system would be commended for the efficient use of heat energy and to maintain the desirable temperature of swine buildings. Over-investment for large scale farm and over-crowded pigpen of small farm would cause wasting construction expenses and spreading epidermic diseases Hence, the size of swine building should follow the recommended scale. The fermentation drier was recommended for the manure management. Urine could be recycled or discharged after treating by the activated sludge process.

• Korean Journal of Animal Reproduction
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• v.22 no.4
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• pp.367-373
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• 1998

A survey was carried out to investigate the effect of the herd size on the reproductive traits of Hanwoo(Korean native cows). Data on the reproductive traits of 670 Korean native cows were collected from January, 1996 to December, 1997 and analyzed by the herd size. The results obtained were summarized as follows: 1. The average ages at first breeding were 437.9, 425.5 and 452.9 days in herd size 1 (less than 20 heads), 2 (21∼50 heads) and 3 (more than 51 heads), respectively (the over all average was 443.0 days). However, there was no significant difference between herd sizes (p＞0.05). 2. The average ages at first conception were 452.8, 438.4 and 467.1 days in herd size 1, 2 and 3, respectively (the over all average was 460.0 days). However, there was no significant difference between herd sizes (p＞0.05). 3. The average ages at first calving were 741.2, 730.2 and 755.9 days in herd size 1, 2 and 3, respectively (the over all average was 746.6 days). However, there was no significant difference between herd sizes (p＞0.05). 4. The average days to first estrus after calving was 70.1 days and it was shortest in herd size 3 (64.8 days) and longest in herd size 1(82.1 days). 5. The average numbers of services per conception were 1.54, 1.61 and 1.48 in herd size 1, 2, and 3, respectively (the over all average was 1.53). However, there was no significant difference between herd sizes (p＞0.05). 6. The average days to first conception after calving were 115.6, 99.1 and 80.6 days in herd size 1, 2 and 3, respectively (the over all average was 91.2 days). There was a trend that it was shorter as the herd size increased(p＜0.05). 7. The average length of calving interval was 375.3 days and it was shortest in herd size 3 (367. 4 days) and longest in herd size 1 (389.5 days).

• Korean Journal of Poultry Science
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• v.44 no.1
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• pp.11-18
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• 2017

The purpose of this survey was to collect basic data on breeding systems of animal welfare-approved laying hen farms in Korea. Questionnaires were mailed to 64 animal welfare-approved farms, and 20 questionnaires (31.3%) were returned. The housing systems were fabric coverlet (4 farms, representing 20%), naturally farmed (Yamagisi, 7 farms, 35%), and steel panel-framed housing (9 farms, 45%). The 20 farms had stocking densities of $2{\sim}3birds/m^2$ (2 farms; 10%), $4{\sim}5birds/m^2$ (10 farms; 50%), and $6{\sim}7birds/m^2$ (8 farms; 40%). Breeding methods were floor-housed (14 farms; 70%), free-range (3 farms; 15%), and floor plus free-range (3 farms; 15%). Stocking density was $4{\sim}6birds/m^2$ at most of the farms with fabric coverlet and naturally farmed housing and $6{\sim}7birds/m^2$ at seven farms (of 9 farms) with a steel panel-framed housing. The daily feed intake of 11 farms (55%) was between 120 and 130 g, which included 3 farms (15%) with fabric coverlet, 3 farms (15%) with naturally farmed housing, and 5 farms (25%) with steel panel-framed housing. The age of peak production was 24~28 weeks overall 20 farms. Over 80% of production on fabric coverlet, naturally farmed, and steel panel-framed house farms was on 3, 4 and 6 farms, respectively. Respiratory disease on the 20 farms represented 55% of total disease incidence, and of each housing type represented 75% (fabric coverlet), 70% (naturally farmed) and 33% (steel panel-framed). E. coli disease was only found in the steel panel-framed housing. Most of the animal welfare-approved eggs were sold at large markets or a real sale markets. Egg price was 200~250 won per egg. These results indicate the current situation of animal welfare-approved farms and could be caused that windowless poultry house was applied to animal welfare approved farms.

• Journal of the korean veterinary medical association
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• v.38 no.7
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• pp.612-619
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• 2002

최근 가축을 사육하고 있는 현장에서 번식장애 즉 불임증을 호소하는 농가들이 예전에 비해 부쩍 늘어가고 있는 추세에 발맞추어 임상수의사들이나, 인공수정업무를 행하고 있는 인공수정사, 사육농가들이 번식장애를 예방 또는 치료의 목적으로 호르몬 제재를 사용하거나 번식효율을 제고하고 저 이를 사용하고 있는 경우가 허다하게 볼 수가 있다. 허나, 이러한 호르몬 제재들의 그 유효성분, 적용 축종, 투여방법, 안전성 및 부작용 등을 정확하게 숙지한 상황에서 사용하지 않으면 오히려 호르몬 제재의 오, 남용으로 인한 번식장애를 유발할 가능성이 높다고 하겠다. 필자 역시 전국각지에서 가축들을 사육하고 있는 농가들이 방문 내지는 인터넷, 전화 등의 유선통신로부터 많은 질문을 받아온 결과 상당히 많은 분들이 정확한 진단이나 지식이 없이 무분별하게 사용하고 있는 실태를 보고 경악을 금치 못했던 기억을 새삼 떠올려짐을 어찌할수 없음을 밝혀둔다. 따라서 우리 임상전문수의사들의 생식기검사가 이뤄진 후 정확한 진단하에서 사용되고 있는 호르몬 제재는 기술(旣述)한 바와 같이 별반 문제점이 발생할 소지가 적으나, 이외의 비전문가들이 사용하는 경우는 오히려 호르몬제재를 사용하지 않는 경우보다도 나쁜 악영향을 초래할 가능성이 높다고 하겠다. 이에 우리임상전문수의사 뿐만 아니라 수의관계업무에 관련하는 모든분들에게도 최근 호르몬 및 그 제재에 대한 정확한 지식을 숙지하여 나갈 필요성을 절감하여 이에 대해 상세한 고찰을 하여 나갈까 한다. 이 글을 읽어보는 수의사들에게 조그마한 도움이 되었으면 하는 바램을 피력하고 싶다.

• Journal of Life Science
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• v.27 no.6
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• pp.702-707
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• 2017

Insects and their extract have been traditionally used as medicinal resources in Asia. Recently, Gryllus bimaculatus and the larva of Tenebrio molitor, Protaetia brevitarsis, and Allomyrina dichotoma were enlisted as general food ingredients by Korean Ministry of Food and Drug Safety. As the interest in these insects is growing, the detailed investigation is needed for the standardization of suitable and safe rearing techniques. This survey was conducted via personal interviews about edible insect rearing farms in Korea. The basic feed is fermented oak sawdust for P. brevitarsis and A. dichotoma and wheat bran for T. molitor. The various feed additives are blended with each farm's own recipes. The overall growth condition, including sawdust fermentation method, feeding period, and rearing density, varies among the investigated farms. It seems that weight of last instar larva was correlated with the rearing density and duration of the larval period. The heavy metal contents were analyzed after 48 hour starvation and they were very small amount or not detected in investigated insects. We believe that the present data will contribute to develop and standardize the safe rearing techniques of edible insects in Korea.

• Journal of Animal Environmental Science
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• v.17 no.2
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• pp.61-70
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• 2011

This survey was conducted to investigate the current situation of ground condition of barn, moisture condition, feeding facilities, disinfection tool, etc. The data from a total of 305 farms were collected and analysed for establishment of managemental target in Hanwoo farm. The ground condition of barn was evaluated as a result of "moderate level" (46.4%). The moisture removal on the ground was conducted with the aid of electric fan (36.4%). The natural wind and sunlight should be used gradually for economic effect in farm. The exchange of floor straw was mostly conducted to remove the bad smell of barn (33.7%). 37.0% of farms had no the electric fan in internal barn, this instrument must be installed for control of body temperature and internal moisture in the future. Most of feeding facilities were operated by hand(88.2%). Modern farms should be installed with automatic feeding system. Farmer's skill of management was evaluated as a "2.80" of 5 points. Accordingly, farmers should be trained with high level of technical competitive skill. In conclusion, Hanwoo farms should be promoted and improved for enhancement of income through introduction to scientifically modern feeding skill.

• Journal of Veterinary Clinics
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• v.24 no.4
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• pp.493-498
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• 2007

The purposes of this study were to survey the seroprevalence of canine coronavirus(CCV) in healthy adult dogs and to determine whether there was any relationship between seroprevalence and the host parameters. Serum samples for determination of serum neutralization antibody titers against CCV were obtained from 812 healthy adult dogs over 1 year old brought to veterinary clinics for routine health care visit in 4 provinces from January 2003 to April 2004. Of the 812 dogs, 714(87.9%) had positive antibody titers(more than 1:4) against CCV. The prevalence of positive CCV antibody titers were not significantly associated with age, sex, rearing province and environment, and vaccination status. However, the positive CCV antibody titers were increasing with the age. These serological findings have shown that prevalence of positive CCV antibody titers in Korean dogs were a relatively high and that CCV infection was widespread in Korean dog population. These suggest that it may be as important to protect dogs against infection with CCV as it is to vaccinate against canine parvovirus.

• Journal of the Korea Organic Resources Recycling Association
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• v.9 no.2
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• pp.52-57
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• 2001

ln this study, the questionnaire survey was performed to obtain the basic data on current situations and challengeable aspects of vermicomposting industries. The questionnaire contained the four main categories such as vermicomposting facilities, feeling marerials, earthworm breeding and cast handling. The results was summarized as followings: 1. Vermicomposting facilities area was becoming larger, and earthworm feed was also expending to various organic sludges. These trends showed that Vermicomposting is being enlightened to treat and recycle the organic wastes in Korea. 2. Present Vermicomposting technology needs the broad land. Because of the high cost of land in Korea, the land saving technology such as multistage must be needed. And present operation practices are mostly based on human power, mechanization and automation is needed. Also, present control practices are based on individual experience need the scientific base control system. 3. Considering situations of organic wastes management in Korea, the technical development and the practical improvement of Vermicomposting as the waste recycling will be needed.