• 한국축산시설환경학회지
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• 제16권1호
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• pp.1-12
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• 2010

본 조사는 경남지역 양돈농가의 분뇨자원화 실태를 조사, 분석하여 자연순환농업 활성화를 위한 방안을 제시하고자 경남지역 15개 시군 109개 양돈농가를 대상으로 직접방문조사를 실시하였다. 양돈농가 현황, 분뇨관리 실태, 자연순환농업 추진현황 등을 조사, 분석하였으며, 그 결과를 요약하면 다음과 같다. 경남지역 양돈농가 경영주의 연령분포는 50대 비율이 가장 높았고 다음이 60대로 전체의 1/4을 차지하였으며, 그 다음은 40대였고 40대와 50대를 합하면 67%를 차지하였다. 경영주의 교육수준을 보면 고졸학력이 가장 높은 비율을 나타내었고 그 다음이 35.8%로 고졸 이상 대학교육을 받은 것으로 조사되었다. 분뇨수거방식은 100% 슬러리인 양돈농가가 전체의 1/3을 차지하였으며, 슬러리가 50%를 넘는 양돈농가는 34.9%로 조사되었다. 분뇨처리방법은 해양배출이 조사농가의 2/3를 초과하는 것으로 나타난 반면, 분뇨의 50% 이상을 자원화 하는 농가는 8.3%로 낮은 수준이었다. 양돈농가의 분뇨처리비용은 전체 조사농가의 2/3를 차지하는 농가가 톤당 10,000원~15,000원이 소요되는 것으로 조사되었다. 가축분뇨의 해양배출 금지 이후에 양돈농가의 41.3%가 톤당 10,000원~15,000원을 분뇨처리 비용으로 기꺼이 지불하겠다고 하였다. 양돈농가의 분뇨관리를 위한 장비보유현황을 보면, 고액분리기는 72.5%의 농가에 설치되어 있으며, 로더는 44%, 분뇨수거, 운반 빛 이용을 위한 차량은 10.1% 만이 보유하고 있는 것으로 조사되었다. 또한 각종 환경개선제 사용에 대해서는 전체 조사 양돈농가의 84.1%가 어떤 종류나 형태이든 환경개선제를 사용하고 있는 것으로 조사되었다. 자연순환농업에 대하여 양돈농가의 37.6%는 인지하고 있는 것으로 나타났으나 모르고 있는 농가비율이 25.8%로 상당히 높은 편이었다. 자연순환농업과 연계하여 향후 양돈분뇨 관리방법은 개별농가 자원화와 공동자원화가 60.6%를 차지하였다. 결론적으로 경남지역 양돈농가의 양돈분뇨처리는 해양배출 의존도가 매우 높아 자원화이용 수준이 아직 낮은 편이며, 향후 각 시군의 토양과 작물재배 특성에 맞는 자연순환농업을 추진하기 위하여 지역내 양돈분뇨의 자원화 비율은 높아져야 하고 양돈분뇨 퇴 액비의 유통이 활성화 되어야 할 것이다.

• 한국임상수의학회지
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• 제12권1호
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• pp.917-924
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• 1995

I suis cocciosis in piglets seems to occur in the majority of Korean sow herds. Cocci야osis is characterized by a pasty diarrhea in piglets appearing at 5 to 11 days old. Morbidity is variable, Mortality is usually low but piglets growth is always retarded. And, the principal source of infection is the environment because of the high resistance of oocysts. Control of coccidiosis is usually frustrated since the majority of treatment have not constant results. Mundt et al(1990) developed a new strategy by administrating toltrazuril as an oral suspension. This new anticoccidial drug reduced clinical signs and mortality. Therefore, we will try to medicate piglets with Baycox(Bay Vi 9142) suspension in a sow herd, having a problem of I suis coccidiosis. The incidences of coccidiosis in suckling piglets in C and D bleeding stock farm were from 28.6 to 42.3 and 21.1~57.9 % during 3 to 21 day-old. The body weights of suckling piglets in treated groups were higher than those of control groups at 11 and 18 day-old. Also, those of C breeding stock firm were higher than those of D farm. The body weight gains of suckling piglet of treated groups were higher than those of control groups. Also, those of C breeding stock firm were higher than those of D farm. There was no dead piglet in all experimental groups. Some atrophic piglets were done away with. In C breeding stock farm, the incidences of diarrhea in treatment groups were significantly lower an those of control groups. Also, the degrees of diarrhea in treated groups were significantly lower than those in control groups. In D breeding stock farm, the incidences of diarrhea in treated groups were a little lower than those in control groups. Also the degrees of diarrhea in treated groups were a little lower than those in control groups. In the treated groups, the incidences and degrees of diarrhea were reduced at the 4th day and increased at the 13th day after treatment. The number of litters excreted oocysts in treated groups wert lower than those in control groups after treatment. Also, the OPG in treated groups were lower than those in control groups. According to above results, the effect of Baycox suspension against swine coccidiosis was very good. If we will treat with Barcox suspension swine coccidiosis in swine stock farms, we can get good effects of the improvement of body weight gains and diarrhea and e reduce of excreted costs in faeces.

• Asian-Australasian Journal of Animal Sciences
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• 제31권5호
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• pp.763-772
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• 2018

Objective: Swine manure in Korea is separated into solid and liquid phases which are composted separately and then applied on land. The nutrient accumulation in soil has been a big issue in Korea but the basic investigation about nutrient input on arable land has not been achieved in detail. Within the nutrient production from livestock at the national level, most values are calculated by multiplication of the number of animals with the excreta unit per animal. However, the actual amount of nutrients from swine manure may be totally different with the nutrients applied to soil since livestock breeding systems are not the same with each country. Methods: This study investigated 15 farms producing solid compost and 14 farms producing liquid compost. Composting for solid phase used the Turning+Aeration (TA) or Turning (T) only methods, while liquid phase aeration composting was achieved by continuous (CA), intermittent (IA), or no aeration (NA). Three scenarios were constructed for investigating solid compost: i) farm investigation, ii) reference study, and iii) theoretical P changes (${\Delta}P=0$), whereas an experiment for water evaporation was conducted for analyzing liquid compost. Results: In farm investigation, weight loss rates of 62% and 63% were obtained for TA and T, respectively, while evaporation rates for liquid compost were 8.75, 7.27, and $5.14L/m^2{\cdot}d$ for CA, IA, and NA, respectively. Farm investigation provided with the combined nutrient load (solid+liquid) of VS, N, and P of 117.6, 7.2, and $2.7kg/head{\cdot}yr$. Nutrient load calculated from farm investigation is about two times higher than the calculated with reference documents. Conclusion: The nutrient loading coefficients from one swine (solid+liquid) were (volatile solids, 0.79; nitrogen, 0.53; phosphorus, 0.71) with nutrient loss of 21%, 47%, and 29%, respectively. The nutrient count from livestock manure using the excretion unit has probably been overestimated without consideration of the nutrient loss.

• 한국축산시설환경학회지
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• 제3권1호
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• pp.19-26
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• 1997

Composting has recently become popular as a means of recycling swine manure into products for sale off the farm, but bulking agent(usually sawdust) are expensive and availability is limited. This experiment was conducted to investigate the effect of fly ash as a bulking agent on the composting of swine manure and to analyze the effective substitution rate of fly ash mixed with swine manure for sawdust. Fly ash was able to be substituted for sawdust and the most effective substitution rate are 50% of sawdust. According to the results the advanced research and development are required, the effect of swine manure with fly ash on the soil properties, forage composition and animal performance.

• Journal of Animal Science and Technology
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• 제53권2호
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• pp.177-182
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• 2011

본 연구는 국내 대규모 양돈농장에 HACCP 시스템을 적용 후 나타나는 생산성 및 안전성의 지표인 분만율, 총 산자수, 초기 포유개시 두수, 이유 두수, 이유후 육성율, 이유일령, 모돈두당 연간 비육돈 출하두수와 월평균 약제비, 농장에서의 사용항생제수 사육구간별 사료내 항생제 첨가 농가수-사료공장에서 첨가, 사육구간별 사료내 항생제 첨가 농가수-농장에서 첨가 등을 조사하여 그 효과를 검토하고 이를 향후 수행할 농장 HACCP 연구 관련 기초 자료로 사용하기 위한 목적으로 실시하였다. 분만율은 HACCP 적용 전에 비하여 적용 후 유의적으로 증가하는 것으로 조사되었다(p<0.05). 모돈 두당 연간 규격돈 출하두수도 HACCP 적용 전 17.99두였으나 적용 후 18.83두로 유의적으로 증가하였다(p<0.05). 농장에서의 사용항생제수는 적용 전 8.88개에서 적용 후 6.13개로 약 25.97%가 유의적으로 감소하였다(p<0.05). 특히 사육구간별 항생제 첨가농장수-농장에서 첨가는 비육구간에서 HACCP 적용 전에는 전체 10개 농장 중 4개 농장이 해당되었으나 적용 후에는 모든 농장에서 항생제를 사료에 첨가하지 않는 것으로 나타났다. 따라서 본 연구결과에 의하면 대규모 양돈농장에 HACCP 시스템을 적용할 경우 동물용 의약품 사용 감소와 함께 농장의 생산성에도 좋은 효과가 있을 것으로 판단되며 동시에 소비자에게 더욱 안전한 축산물을 제공할 수 있을 것으로 판단된다.

• 대한수의학회지
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• 제47권1호
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• pp.51-57
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• 2007

To establish a statistically reliable sampling strategy for serological surveillance of classical swinefever (CSF) in Korea, antibody test data from CSF surveillance conducted during year 2005 were analyzed.The most appropriate sampling method was determined to be stratified multi-stage random sampling strategy,in which the primary sampling unit is a pig farm and the secondary are the pigs by the strata of breedersand finishers in the selected farm. The optimum sample size was 5 to 19 including 1 to 2 breeders accordingto the number of pigs in the farm. The optimum sampling strategy demonstrated in this study was veryFindings of our study provide practical guidelines for surveillance of herd immunity level to CSF in Korea.

• 한국지하수토양환경학회지:지하수토양환경
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• 제18권1호
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• pp.137-147
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• 2013

A lot of burial sites for the disposal of the contagious livestock slaughtered by foot and mouth disease were constructed in a short time for preventing the rapid spread of the virus. More than 4,700 carcass burial sites were constructed in 2011. Approximately 7 million poultry and 3.5 million livestock including head of cattle and swine were buried in farm land. However, the available cost data for a burial site was not provided. This study was to performed in order to understand the economic issues related to carcass burial disposal. The data from a local government was analyzed and the assumption data web based was constructed to evaluate the cost for constructing a carcass burial. The results showed that the local government paid KRW 5,386 for the burial disposal of a mortality (swine). It was estimated that the cost could be reduced through an appropriate measures.

• 한국농공학회논문집
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• 제62권1호
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• pp.61-70
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• 2020

To estimate the ventilation volume of mechanically ventilated swine farms, various regression models were applied, and errors were compared to select the regression model that can best simulate actual data. Linear regression, linear spline, polynomial regression (degrees 2 and 3), logistic curve, generalized additive model (GAM), and gompertz curve were compared. Overfitting models were excluded even when the error rate was small. The evaluation criteria were root mean square error (RMSE) and mean absolute percentage error (MAPE). The evaluation results indicated that degree 3 exhibited the lowest error rate; however, an overestimation contradiction was observed in a certain section. The logistic curve was the most stable and superior to all the models. In the estimation of ventilation volume by all of the models, the estimated ventilation volume of the logistic curve was the smallest except for the model with a large error rate and the overestimated model.

• 대한수의학회지
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• 제41권4호
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• pp.565-570
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• 2001

The diagnosis of swine sarcoptic mange (Sarcoptes scabiei var. suis) was investigated by ELISA in order to replace current diagnostic methods such as skin scraping, scratching index, or lesion score of dermatitis. The current methods need many efforts and much times and cost much. They can not handle many samples simultaneously. Therefore, in this research we developed ELISA that can handle many samples at a time. The antigens of swine sarcoptic mite were isolated and examined by 12.5% SDS-PAGE and silver staining. The antigenicity of antigen was confirmed by Western blotting using the swine from the artificailly-infested swine with swine sarcoptic mite. The optical density (OD) values of the artificailly-infested positive sera and the naturally-infested positive sera of sows were measured and read in order to confirm the stability of antigens, the reproducibility and validity (sensitivity and specificity) of the manufactured ELISA of swine sarcoptic antigens. In above results, the developed ELISA would be possible to use the diagnostic tool of sarcoptic mange if OD values of piglets, fattening pigs and sows are interpreted reasonably and classified as mange-free and infested.

• Journal of Animal Science and Technology
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• 제66권1호
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• pp.219-231
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• 2024

Feed has a great influence on the composition of swine manure, which is the principal cause of odor. Therefore, the purpose of this study is to simply change the shape of pig feed and control calories to find a suitable feed form for reducing the smell of swine manure. The experiment was conducted on 15 pigs from July to August 2021, and a total of three measurements were done. Three types of feed were evaluated in this study. The analysis items related to odor of swine manure are complex odor, ammonia, sulfur-based odors, and volatile organic compounds (VOCs). In the case of complex odor, dilution multiples tended to decrease over time, except for type A feed. The concentration of ammonia in all types of feed decreased over time. Most sulfur-based odorous substances except hydrogen sulfide at the first measurement were not detected. Representatively, Decane, 2,6-Dimethylnonane, and 1-Methyl-3-propylcycolhexane were detected in VOCs generated from swine manure. The major odorous substansces in swine manure have changed from ammonia and sulfur compounds to VOCs. In order to reduce the odor caused by swine manure, it is ad-vantageous to use low-calorie feed consisting of pellet-type.