국내 종합병원 전문진료센터의 건축 계획에 관한 연구

정가영,양내원,이한승 한국의료복지시설학회 2007 의료·복지 건축 Vol.13 No.3

55. Effect of Different Parity on Reproduction Performance, Weaning Traits, and Duration Traits in Sows

Ka Young Yang,Jung Hwan Jeon,Kyeong Seok Kwon,Jong Bok Kim,Jung-Hoon Kwag,Jun Yeob Lee 한국초지조사료학회 2019 한국초지조사료학회 학술대회논문집 Vol.2019 No.06

Effect of different parities on reproductive performance, birth intervals, and tail behavior in sows

( Ka Young Yang ),( Jung Hwan Jeon ),( Kyeong Seok Kwon ),( Hee Chul Choi ),( Jong Bok Kim ),( Jun Yeob Lee ) 한국축산학회(구 한국동물자원과학회) 2019 한국축산학회지 Vol.61 No.3

A goal for swine farming is the improvement in the number of live-born and weaned piglets per sow. Hence, the effect of parities should consider the correlation between the component traits of reproductive performance, weaning, and duration. Sows were housed in farrowing pens (W 2.2 × D 1.8 × H 1.2 m) on a partially slatted plastic floor. Twenty sows used in this study were between the first and sixth parity in gilts (P1), parity 2-5 (P3), and parity 6-9 (P6). Data collection by parity was classified into three categories: (1) reproduction performance (gestation length, total number of piglets born, number of piglets live born, number of piglets stillborn, total piglet birth weight; (2) weaning traits (weaning period, number of piglets weaning, total piglets weaning weight); (3) duration traits (farrowing duration, placenta expulsion duration, time from last piglet to first placenta, average birth interval, and tail wagging behavior). Gestation length was higher in P6 than P1 and P3 of different parity sows. The maximum value in P1 and P3 was 117 days, but the median value in P6 was 117 days (p < 0.05). The total number of piglets born (p = 0.113), number of piglets live born (p = 0.118), number of still piglets born (p = 0.151), and total piglet birth weight (p = 0.117) were not affected by parity. The number of live piglets was higher than the other parities by an average of 15.6 ± 2.1 in P1. The duration of farrowing was the lowest at 22.2 min in P6, but the maximum value was 42.2 min more than other parities (p = 0.355). Weaning traits of sows also did not differ significantly (p > 0.05), but the weaning period from P1 was lower than that of the other parities (p = 0.170). The number of piglets weaned was 10 heads on average in P1, P3, and P6 (p < 0.05). However, the mean values of the total piglet weaning weight (p = 0.377) of P6 (62.0 10.4 kg) were higher than those of P1 (54.9 10.2 kg) and P3 (58.4 13.6 kg). The placenta expulsion duration was higher in P6 than that in P1 and P3 (p = 0.447). The time from the last piglet to first placenta was be lower in P3 than that of the other parities (p = 0.206). The average birth interval was higher in P3 than that of the other parities (p = 0.156). Tail wagging (count) behavior was higher in P6 than in the other parities (p = 0.065). The data showed that the reproduction performance, total piglets born, and weight were higher in the gilts group, and higher in the weaning trait than that in the P6 group. This study examined the relationship between reproductive performance, birth interval and tail motion according to sow parity. Regarding duration, farrowing duration was lower in P6 than that in the other parities, but placenta expulsion and tail wagging were higher in P6 than in the other parities. Therefore, it is possible that the results from these sows could be used as basic data for effective farm management.

한우의 개체별 사료 자동급이기 사용이 도체품질에 미치는 영향

양가영 ( Ka-young Yang ),장동화 ( Dong-hwa Jang ),권경석 ( Kyeong-seok Kwon ),하태환 ( Tahwan Ha ),김종복 ( Jong-bok Kim ) 한국농공학회 2021 한국농공학회 학술대회초록집 Vol.2021 No.-

일반 군사사육 농장의 모돈사의 복지 수준 및 돈사환경 비교 분석

양가영(Ka-Young Yang),장동화(Dong-hwa Jang),권경석(Kyeong-seok Kwon),하태환(Taehwan Ha),김종복(Jong-bok Kim),이준엽(Jun-Yeob Lee),김중곤(Jung-Kon Kim) 한국산학기술학회 2022 한국산학기술학회논문지 Vol.23 No.1

대북축산지원사업 우선순위 설정에 관한 연구

김영섭 ( Young Sup Kim ),최종산 ( Jong San Choi ),이종인 ( Jong In Lee ),양가영 ( Ka Young Yang ),송영한 ( Young Han Song ) 한국국제농업개발학회 2015 韓國國際農業開發學會誌 Vol.27 No.5

1. 1995년부터 2014년까지의 대북의 공공적 지원과 민간차원으로서의 대북지원사업을 조사 연구하고 이미 발표된 통일대비 축산지원정책 자료를 토대로 26개 설문문항을 작성,AHP방법을 이용 우선순위 분석결과를 다음과 같이 요약하였다. 2. 평가대항목 중에서 공공성이 0.5229로 절반이상의 수치를 보이고 2위로 기술성, 3위로 시장성의 순이며, 평가소항목에서는 기술실현성 0.6220이 또한 높은 수치를 보이며 2위엔시장성장성, 3위엔 국가전략과의 부합성 순이다. 3. 각 대항목과 소항목간의 종합가중치에선 공공성에서 국가전략과의 부합성, 사회적 영향성, 산업적파급성 순으로 나타났으며, 기술성 측면에서는 기술실현성, 기술파급성, 기술독창성 순이고 시장성 측면에서는 시장성장성, 투자수익성, 시장규모성 순으로 각각 나타났다. 4. 평가대안의 대북축산지원사업 우선순위 1위인 “지역특화사업단지 조성”부터 26위인 “통일 후 축산지원방향 협의체구성”까지의 지원사업 전체가 중요하다고 판단돼 정부의 미래대북지원정책 수립과정에서 기초자료로 사용되었으면 한다. 또한 26개 대북축산지원우선순위에 관해 전문가들에게 Delphi설문조사방법을 시행하여 각각의 지원사업에 적절한 예산안 분배배치가 이루어질 필요성이 있다고 판단된다. This research surveys North Korean aid from 1995 to 2014, and comprises survey items of26 investment fields based on Animal Husbandry Aid policy materials which have already been identified as a component of unification preparation. We used analytic hierarchy process (AHP) methods in order to establish priority order among these 26 investment items. A series of pairwise comparison judgment is performed to evaluate the relative intensity about the elements in the hierarchy process based on expertise survey. Three kinds of policy evaluation criteria, such as Technology, Marketability, Publicness and each has 3 different subcategories evaluation criteria and 26 types of Animal Husbandry policy measures are applied in the study. The analytical results showed that the highest priority among the policy measures was District specialization project development as 0.5889 and the Consultative Group of Animal Husbandry Aid Direction after Unification was 0.3772 as the lowest mark. However, this number showed not much difference as -0.0028 when it was compared with average level C 0.38 of absolute measurement. Therefore, the entire 26 investment projects are considered to be very important with regard to the North Korea Aid Policy.

영상정보에 의한 모돈의 분만징후 행동특성 분류

양가영(Ka-Young Yang),전중환(Jung-Hwan Jeon),권경석(Kyeong-Seok Kwon),최희철(Hee-Chul Choi),하재정(Jae-Jung Ha),김종복(Jong-Bok Kim),이준엽(Jun-Yeob Lee) 한국산학기술학회 2018 한국산학기술학회논문지 Vol.19 No.12

본 연구는 모돈의 분만징후에 따른 예비행동특성 분석 및 분류를 통하여 정확한 분만시점을 예측하고자 본 실험을 진행하였다. 모돈 12마리(평균 3.5 산차)에서 분만전 징후의 행동특성으로 측정된 행동은 지속시간에 따라 분석된 기본행동(섭식, 서기, 눕기, 앉기)과 빈도로 분석된 특이행동(탐색, 저작, 긁기, 스톨물기)으로 나뉜다. 분만 24시간 전부터 첫 태아가 나오는 시점까지 시간대별 2분 간격으로 영상정보를 녹화 및 수집하여 분석하였다. 그 결과 모돈의 기본행동 중 서기시간(22.6%; 24H, 24.9%; 12H)과 횡와시간(55.9% ;24H, 66.3% ;12H)은 분만 24시간 전의 빈도가 유의적으로 낮게 나타났다(p<0.01). 섭식시간(13.42% 24H, 4.38% 12H)과 앉기시간(8.2% 24H, 4.5% 12H)은 분만 12시간 전부터 감소하는 경향을 보였다(p>0.05). 모돈의 특이행동 중 탐색행동(11.44±1.80 24H, 55.97±6.13 12H), 바닥을 긁는 행동 (3.75±1.92 24H, 20.99±5.8 12H) 및 스톨물기 행동(0.69±0.15 24H, 3.71±1.53 12H)은 분만 24시간 전 보다, 분만시간이 점점 다가오는 12시간 전부터 점진적으로 빈도가 증가하였다 (p<0.01). 반면 저작행동 (2.20±1.67 24H, 0.07±0.01 12H)은 분만 12시간 전부터 감소하는 경향을 보였다(p>0.05). 결과적으로 분만시점이 다가갈수록 서기·탐색·긁기·스톨물기 행동이 높게 발현되는 것으로 나타났다. The aim of this study is to predict the exact time of parturition from analysis and classification of preliminary behavior based on parturition signals in sows. This study was conducted with 12 crossbred sows (with an average of 3.5 parities). Behavioral characteristics were analyzed for duration and the frequency of different behaviors on a checklist, which includes the duration of the basic behaviors (feeding, standing, lying down, and sitting). The frequency of specific behaviors (investigatory behavior, shame-chewing, scratching, and bar-biting) was also recorded. Image information was collected every two minutes for 24 hours before the first piglets were born. As a result, the basic behavior of a sows" standing time (22.6% of the time after 24 h, 24.9% after 12 h) and time lying down (55.9% after 24 h, 66.3% after 12 h) increased over the 12 h period before parturition, compared with the 24 h period before parturition (p<0.01). Feeding (13.42% after 24 h, 4.38% after 12 h) and sitting (8.2% after 24 h, 4.5% after 12 h) tended to decrease during the 12 h before parturition (p>0.05). The sows" investigatory behavior (11.44±1.80 after 24 h, 55.97±6.13 after 12 h), scratching (3.75±1.92 after 24 h, 20.99±5.81 after 12 h), and bar-biting (0.69±0.15 after 24 h, 3.71±1.53 after 12 h) increased in the 12-hour period before parturition, compared with the 24-hour period before parturition (p<0.01). On the other hand, shame-chewing (2.20±1.67 after 24 h, 0.07±0.01 after 12 h) decreased compared to the 12-hour period before parturition (p>0.05). Thus, standing, investigatory behavior, scratching, and bar-biting could be used as behaviors indicative of parturition in sows.

한우의 개체별 사료 자동급이기 사용이 도체품질에 미치는 영향

양가영(Ka-Young Yang),장동화(Dong-hwa Jang),권경석(Kyeong-seok Kwon),하태환(Taehwan Ha),김종복(Jong-bok Kim) 한국산학기술학회 2021 한국산학기술학회논문지 Vol.22 No.12

한우 스마트팜에 적용되는 대표적인 장치인 개체별 사료 자동급이기는 개체별로 적정 사료량을 급이 할 수 있어 정밀한 사양관리가 가능한 것으로 알려져 있다. 하지만 개체별 사료급이가 생산성에 얼마나 영향을 주는지에 대한 연구결과는 없는 실정이다. 따라서 본 연구에서는 개체별 자동급이기 사용농가와 관행 사료급이 농가의 도체 성적 및 품질을 분석하여 농가들 사이의 품질의 균일성을 비교하였다. 한우농가에서 자동 사료급이기를 활용한 농가와 관행적 사료급이를 하는 농가를 섭외하여 도체 성적 및 품질의 5가지 항목인, 도체중(carcass weight, kg), 등지방두께(backfat thickness, mm), 배최장근단면적(loineye muscle area, ㎠), 근내지방도(marbling score, 점수), 육량지수(meat yield index, 점수)를 조사하였다. 분석결과 도체중과 등지방 두께는 자동사료급이기를 사용한 농가가 관행급이 농가보다 분산이 작게 나타났다(p <0.05). 반면, 배최장근면적, 근내지방도 등급, 육량 등급에서는 큰 차이가 없는 것으로 분석됐다(p >0.05). 이 결과, 농가의 수익과 연관되는 도체중과 등지방두께에서 개체별 자동 급이기의 설치가 한우 개체들 사이의 균일성을 이루는 것으로 판단되나 비교 농가 사이의 품질평가 항목의 성적결과 측면에서는 개체별 자동급이기의 영향뿐만 아니라, 유전적, 환경적, 사료성분 및 사양관리 등 다양한 요인들의 영향도 고려하여 추후 추가적인 연구들이 필요할 것으로 사료된다. This study compared the quality of farms by analyzing their carcass performance. In particular, this study compared the quality of farms equipped with automatic feeding machines with that of the conventionally feeding farms managed by individuals. The carcass weight (kg), back-fat thickness (mm), and the longest pear contribute to the five measures of carcass performance and quality of farms in Korean cattle. Hence, the carcass weight, back-fat thickness, loineye-muscle area, marbling-score, and meat yield index were compared and analyzed between the two farm types. The analysis result suggests that the carcass-weight and back-fat thickness were found to have smaller variances in the farms equipped with the automatic feeder than in the conventional feeder farms (p <0.05). However, there was no significant difference in the loineye-muscle area, marbling-score, and meat yield index between conventional and automatic feeding. As a result, it is judged that installing an automatic feeder for each individual farm achieves uniformity among Korean cattle in terms of carcass weight and back-fat thickness. This uniformity is related to the farmer"s profit as well. Finally, it is concluded that additional studies are needed in the future to consider the effect of this breed and the influence of various factors such as genetic, environmental, feed ingredients, and feed management.

국내 동물복지 인증 산란계 농가의 사육시설 및 동물복지 수준 현황 조사

양가영(Ka Young Yang),이준엽(Jun Yeob Lee),권경석(Kyeong Seok Kwon),김종복(Jong Bok Kim),전중환(Jung Hwan Jeon) 한국산학기술학회 2019 한국산학기술학회논문지 Vol.20 No.7

본 연구는 동물복지 인증기준의 개선을 위해 농가 현장조사를 실시하였으며, 더불어 국내 농가환경에 적합한 동물복지 수준평가 방법을 개발하고자 일부 인증 농가를 대상으로 동물복지 수준의 기초자료를 확보하고자 조사를 실시하였다. 연구조사의 대상은 동물복지 산란계 인증농가 10개소를 선정하였으며, 산란계 인증농가 사육시설 조사는 사육형태, 사육두수, 사료와 음수 공간, 사육밀도, 횃대의 길이 및 모양을 수집하였다. 동물복지 수준 평가는 모래목욕의 유무, 산란상 사용, 환경풍부화물 제공, 방사장 제공, 깃털손상, 쪼기에 의한 상처 유무를 조사였다. 연구결과는 동물복지 산란계 인증농가들의 대부분이 인증기준을 준수하고 있었다. 일부 농가에서 과도한 인증기준을 지적하였는데 실제 농가내부에 급이기, 급수기 및 횃대의 시설로 인해 닭들이 움직일 수 있는 공간이 제한적인 것으로 판단되었다. 모든 농가들에서 산란상을 제공하고 있었으나 방란율이 20%이상인 농가도 있어 산란상 활용에 문제가 있음을 확인하였다. 횃대의 경우 길이는 충족하고 있었으나 10개 농가 중 3개 농가에서만 둥근형태의 횃대를 사용하고 있었다. 모든 농가에서 깔짚을 제공하고 있었으나 보충 또는 교체가 이루어지지 않아 바닥이 단단해져 닭들이 모래목욕행동을 보이지 않는 농가도 2개 소나 되었다. 환경풍부화물의 경우 사료 외에 풀사료 등을 제공하는 농가는 4개소로 조사되었다. 대부분의 조사농가에서 깃털손상이 확인되었는데 이것은 조사농가 모두 유정란을 생산하고 있어 수탉에 의한 깃털손상일 것으로 판단된다. 본 연구에서 10개소의 농가만 조사하였기 때문에 전체 인증농가를 대표할 수는 없으나 일부항목에서 조사농가들 사이에서도 큰 차이를 보이고 있어 동물복지 수준평가에 면밀한 분석이 이루어져야 할 것으로 판단된다. The purpose of this study was to investigate farmers’ field survey to improve animal welfare certification standards and to obtain basic data on the animal welfare level for certified farmers to develop evaluation methods of animal welfare level suitable for domestic farm environment. The subjects of the study were selected 10 animal welfare laying certified farmhouses. The farming certified farming facility survey collected breeding form, head, feed and drink space, breeding density, length and shape of perch. Animal welfare was assessed by the presence of sand bath, spawning, enrichment measures, free range, feathers pecking. The results of the study showed that most the certified animal welfare laying hens complied with the certification standards. All the farms were providing the nest box, but there were farms with more than 20% of the spawning rate. The perches were provided in sufficient length, but only three of ten farms were using rounded perches. Feather damage has been identified in most survey farms, which is likely to be due to feather damage caused by roosters producing both fertilized eggs. In this study, 10 farm households were surveyed. It was not possible to represent the whole certified farmhouse. Therefore, it should be analyzed thoroughly to evaluate the level of animal welfare.

Electrical and physical properties of composite BaZr_0.85Y_0.15O_3−d-Nd_0.1Ce_0.9O_2−δ electrolytes for intermediate temperature-solid oxide fuel cells

Park, Ka-Young,Lee, Tae-Hee,Jo, Suyeon,Yang, Jayoon,Song, Sun-Ju,Lim, Hyung-Tae,Kim, Jung Hyun,Park, Jun-Young Elsevier 2016 Journal of Power Sources Vol.336 No.-

<P><B>Abstract</B></P> <P>Co-ionic (H<SUP>+</SUP>/O<SUP>2−</SUP>) electrolytes are fabricated by compositing both proton conductor (BaZr<SUB>0.85</SUB>Y<SUB>0.15</SUB>O<SUB>3-δ</SUB>, BZY) and oxygen-ion conductor (Nd<SUB>0.1</SUB>Ce<SUB>0.9</SUB>O<SUB>2−δ</SUB>, NDC) for intermediate temperature-solid oxide fuel cells (IT-SOFCs). This hybrid electrolyte decreases the electronic loss of NDC under reducing atmospheres and improves the poor sinterability of BZY. The electronic conduction caused by the NDC reduction is effectively blocked by the BZY in the composite electrolyte, thus offering both advantages of BZY with its high OCV and more rigid electro-chemo-mechanical property. In addition, the composite BZY-NDC electrolyte also exhibits great chemical stability against exposure to steam and CO<SUB>2</SUB>. Furthermore, the compositing of BZY and NDC improves the proton conductivity of the electrolytes, and the conductivity of composite electrolyte is higher than that of single BZY at temperatures >600 °C.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Co-ionic electrolyte is fabricated by compositing proton and oxygen-ion conductor. </LI> <LI> Hybrid electrolytes decrease electronic loss and improve poor sinterability. </LI> <LI> Conductivity of composite electrolyte is higher than that of single BZY at >600 °C. </LI> <LI> Composite electrolytes exhibits great chemical stability against steam and CO<SUB>2</SUB>. </LI> <LI> Mechanical stability of cells improves by preventing chemical expansion of ceria. </LI> </UL> </P>