• 한국가축번식학회지
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• 제16권3호
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• pp.261-267
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• 1992

The reproductive performance of SPF ICR mice under single paired mating were examined to get reproductive background data and to establish single paired rotational mating system. The results obtained were as follows : average litter size was 15.4$\pm$2.0 heads ; average weaning rate was 95.7$\pm$4.9% ; sex ratio(male/female) was 1.09$\pm$0.26 ; aveage delivery interval was 23.0$\pm$2.4 days. It was given the largest litter size at the age of 121~150 days and in 2nd~4th parities, but at the age of under 90 days and in 1st parity weaning rate and delivery interval were higher and shorter than those of the other ages and parities, respectively. In sex ratio, the number of male litters was slightly increased from that of female litters. The weaning rate of litters from dams which nuresed 12 litters was the highest among those of different litter sizes, and it was decreased dependent upon increment of litter size. There were no difference among 4 groups for reproductive performance, therefore the present study could have important sources for animal breeders who produce mice using the single paired rotational mating system.

• 한국주거학회논문집
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• 제17권2호
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• pp.77-85
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• 2006

This study aims to propose the comprehensive evaluation of performance multi-family housing. Most of the existing studies for the reproduction have evaluated by the safety of structure. Therefore those pass over the functional factors which is important for the evaluation of residential qualities. This study represents that the reproduction renovation should not be secured the safety of structure but established the quality of lift. And questionnaire asking expert's opinion also supplemented. As a result, the item for examination and the weight for evaluation are suggested in functional deterioration. The results of this study are summarized as follows: 1. Existent redevelopment criteria are not appropriate to decide the environmental comfort, the vital function of housing and the residential management finance. 2. The future criteria have to evaluate the existing environmental comfort, be reconstructed to put first general deterioration. 3. Evaluation elements was extracted throughout the document research, evaluation elements analysis system was separated in residential area, suburb of dwellings, community, and housing complexity environmental assesment, 4. Each category of influence ratio was extracted to assess total deterioration throughout the expert question survey. 5. Each category analysed (1) $0{\sim}30%$: function is good (unnecessary to improve) (2) $31{\sim}40%$: average (necessary of partial improvement) (3) $41{\sim}59%$: bad (necessary of total improvement) (4) $60{\sim}100%$: the worst (unable to improve throughout the repair)

• Animal Bioscience
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• 제37권5호
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• pp.862-874
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• 2024

Objective: This study evaluated the effect of Andrographis paniculata (A. paniculata) supplementation in sow diets before and after farrowing on the sow and piglets' performances during early postpartum period and on sows' backfat and longissimus muscle losses during lactation. Methods: Seventy Landrace×Yorkshire sows and their offspring (1,186 piglets) were distributed into three groups: control (n = 31), treatment-250 (n = 18), and treatment-1000 (n = 21). From 110.2±0.7 days of gestation until farrowing (5.8 days) and throughout the lactation period (25.2 days), sows in the control group were given the conventional lactation diet, while sows in the treatment-250 and treatment-1000 groups received supplements of 250 ppm and 1,000 ppm of A. paniculata, respectively. Results: In sows with parity 3-5, piglets from the treatment-1000 group had higher colostrum intake than the control and treatment-250 groups (p<0.05), but not in sows with parity 6-9. Colostrum immunoglobulin G (IgG) increased in treated sows versus controls for parity 6-9 (p<0.05), but was consistent for parity 3-5. Piglet performance until day 3 postnatal was similar across groups (p>0.05). Treatment-250 sows had higher feed intake post-farrowing than treatment-1000 sows (p<0.05). Longissimus loss was less in both treatment groups than control (p<0.05), but backfat loss was similar across groups (p>0.05). Post-partum complications were consistent across groups (p>0.05). Farrowing duration and piglet birth intervals in sows with parity 6-9 were prolonged in the treatment-1000 group. Conclusion: Supplementing with 1,000 ppm A. paniculata for 5.8 days pre-farrowing and 25.2 days post-farrowing enhanced sow colostrum IgG and piglet colostrum intake, while also reducing longissimus loss in sows. However, for sows of parity 6-9, this supplementation led to prolonged farrowing, increased intervals between piglet births, increased stillbirth, and reduced piglet birth weight. These effects should be considered when using A. paniculata supplementation.

• Animal Bioscience
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• 제34권5호
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• pp.833-843
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• 2021

Objective: Current study was conducted to determine the effect of postpartum prostaglandin F2α (PGF2α) administration on colostrum and milk yield, colostrum immunoglobulin G (IgG) and piglet growth performance. Methods: In total, 36 sows were included in the experiment. The sows were classified into two groups: i) control (n = 11) and ii) PGF2α (n = 25). Sows in the PGF2α group received 10 mg of PGF2α within an hour after farrowing. The body weight of piglets was measured at 0 and 24 h after birth to estimate colostrum consumption. Colostrum was collected at 1 and 24 h after farrowing to determine IgG concentrations. For milk yield study, the remaining sows in the PGF2α group (n = 23) were divided into two subgroups: i) single PGF2α (n = 12) and ii) multiple PGF2α (n = 11). In the multiple PGF2α, the sows received repeated doses of PGF2α at seven and 14 days postpartum. The piglets' body weight was measured at 0, 1, 5, and 20 days of age. The milk yield of the sows was calculated. Results: Colostrum yield of sows averaged 5.62±2.25 kg. Sows treated with PGF2α postpartum had a higher colostrum yield than control (7.01 and 5.12 kg, p<0.05). The concentration of IgG in colostrum at 24 h in the PGF2α group was higher than the control (31.6 and 17.4 g/L, p<0.05). For primiparous sows, milk yield was highest in the sows treated with multiple doses of PGF2α during lactation and lowest in control sows (10.25 and 7.61 kg, p<0.05). Colostrum intake was higher in the treatment than the control groups (+56.7 g, p<0.05). Primiparous sows treated with multiple doses of PGF2α had a higher litter weight than controls (p<0.01). Conclusion: Postpartum treatment with PGF2α improved colostrum yield and IgG in multiparous sows and increased colostrum intake of piglets. Multiple administration of PGF2α improved the milk yield and increased litter weight of piglets in primiparous sows.

• 한국동물생명공학회지
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• 제35권2호
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• pp.119-141
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• 2020

The Dromedary camel (Camelus dromedaries) is an important species because of its ability to produce good quality meat, milk, and fibers under harsh environmental conditions. Camels are also crucial for transportation, racing, and as draft animals in agriculture. Therefore, dromedary camels play a critical role in the economy for millions of people living in the arid part of the world. The inherent capability of camels to produce meat and milk is highly correlated with their reproductive performance. Compared with other domestic species, the reproductive efficiency in camelids is low. Although recent reproductive technologies such as in vitro fertilization (IVF) and somatic cell nuclear transfer (SCNT) have been successfully applied to camelids and the birth of live offspring following these technologies has been reported; in vitro embryo production (IVP) has lagged in this species. The development of the IVP system for dromedary camels may be a useful tool for the genetic improvement of this species. IVP in farm animals includes three main steps; in vitro maturation (IVM) of an oocyte, IVF of a matured oocyte, and in vitro culture (IVC) of fertilized oocyte up to the blastocyst stage. This review aims to summarize various factors that influence oocyte quality, IVM, and in vitro embryo development in dromedary camel.

• 한국게임학회 논문지
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• 제4권1호
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• pp.50-57
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• 2004

게임산업은 급속한 성장기를 맞이하고 있으며 대중적, 상업적으로 흥행 에 성공한 게임에 대한 저작권, 표절, 복제에 대한 논란이 급증하고 있다. 컴퓨터 게임은 유행에 민감하며 이러한 소재를 중심으로 게임을 개발을 완성하기 위해서는 짧은 시간, 저렴한 비용, 기술력의 부족 등으로 인하여 게임에 대한 저작권, 복제, 표절에 대한 분쟁이 점차 증가되고 있다. 본 논문에서는 원시코드들을 비교 분석할 수 있는 도구들의 특성을 분석하여 게임 원시코드 분석에 적합한 Windiff를 이용하여, 게임 원시코드를 분석하여 원본프로그램과 복제프로그램간의 복제도를 산출하는 방법에 대하여 연구하였다. 복제도를 산출하는 방법은 게임 특징따라 기능별로 모듈을 나누고, 각 모듈에서 파일구조, 원시프로그램, 자료구조 형태로 파일을 분리한 후 복사도를 계산하였다. 계산된 복사도에서 게임특성상 각 기능의 중요도에 따라 가중치를 두어 전체 게임프로그램의 정량적인 복제도를 산출하였다.

• Asian-Australasian Journal of Animal Sciences
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• 제13권2호
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• pp.182-187
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• 2000

Forty-two Holstein cows (21 multiparous) were assigned by calving date and parity to three dietary sequences to evaluate the effect of time of initiating fat supplementation to diets on lactation and reproductive performance. The dietary sequences were: 1) control, no supplemental fat from 1 to 98 days in milk (DIM) ; 2) control diet from 1 to 28 DIM then 3% supplemental fat (calcium salts of long-chain fatty acids) from 29 to 98 DIM; or 3) 3% supplemental fat from 1 to 98 DIM. Feeding supplemental fat did not enhance mean milk and 4% fat corrected milk (FCM) yields, but efficiency of FCM production was higher for cows fed supplemental fat. Milk fat percentage was unchanged whereas milk protein percentage was depressed with fat supplementation. Feeding supplemental fat reduced DMI and energy balance but there were no differences among treatments on time to resumption of ovarian cyclicity or conception rate to first service. Concentrations of progesterone during the first two ovulatory cycles tended to be greater in the fat-supplemented groups. Feeding supplemental fat starting at either parturition or 29 DIM increased efficiency of FCM production, but did not greatly enhance reproductive performance.

• 복식
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• 제60권1호
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• pp.135-144
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• 2010

This study is on the reproduction of King Sejong's costume presented in at the National Classical Music Institute in the late of 2008. The performance was presented focusing on the idea of ceremonial music of hoi-ryeyeon produced in the reign of king(1433). The reproduction of King Sejong's costume was undertaken to keep pace with the times and to pay due regard to the performance costume. The implications of the study are as follows. King Sejong's Hoi-ryeyeon ceremonial costume is a royal robe(gonryongpo), the best one of king's clothing. The basic type of gonryongpo is that of fastening four yongbos to danryoung. The type of gonryongpo is, therefore, made with reference to unearthed articles and portrait of the first king of the Yi dynasty. The yongbo is larger one than the late period of the Yi dynasty in the light of portrait of the first king of the Yi dynasty. The supporting type of gonryongpo is that of gonryongpo, dapho, and chulrik, king's dress granted by Myeong dynasty. In the late period jikryeong was used as supporting dress and fixed to be lining and included jikryeong. Therefore the order of supporting dress was jikryeong, dapho and chulrik and was reproduced with reference to unearthed articles in the early Yi dynasty, as did the small piece of crown, belt and shoes.

• 한국과학교육학회지
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• 제24권3호
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• pp.519-531
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• 2004

최근 제7차 교육과정이 실시되면서 준거 지향적인 수행평가에 대한 요구가 커지고 있으며, 이러한 상황에서 평가의 절대적인 기준을 마련할 필요성 또한 절실해지고 있다. 본 연구는 제7차 교육과정에 근거하여 고등학교 과학 중 '생식' 단원과 '생물 농축' 단원에 대해서 필수 학습 요소, 성취 기준, 평가 기준 및 평가 문항을 개발하고, 이를 바탕으로 개발한 평가 문항을 실제 현장에 적용하여 그 타당성을 검증하는 것을 목적으로 한다. 본 연구에서는 제7차 교육과정과 고등학교 과학의 7종 교과서를 바탕으로 하여, '생식' 과 '생물 농축' 단원의 필수 학습 요소를 추출하고, 준거 지향 평가의 기초가 되는 객관적이고 타당한 성취 기준 및 평가 기준을 마련하였다. 추출된 필수 학습 요소는 '생식' 단원에서 12개, '생물 농축' 단원에서 4개이었으며, 개발된 성취 기준은 '생식' 단원에서 총 26개, '생물 농축' 단원에서 총 9개로 각각은 지식(K), 탐구(P), 태도(A)의 세 개 영역으로 구분하여 개발하였다. 이상과 같이 개발된 성취 기준을 바탕으로 평가 기준을 개발하였다. 개발된 평가 기준의 수는 '생식' 단원에서 총 25개, '생물 농축' 단원에서 9개였다. 성취 기준과 평가 기준에 따라 '생식' 단원과 '생물 농축' 단원에서 개발된 평가 문항의 수는 서술형 문항 17개, 논술형 문항이 13개, 포트폴리오가 2개로 총 22문항이었다. 각 평가 문항은 구체적인 채점 기준을 제시하였으므로, 교육과정에 근거한 객관적인 평가에 사용될 수 있다. 개발된 평가 문항 중, 서술형 문항 8개를 경기도 소재 고등학교 1학년 학생 240명을 대상으로 적용 분석하였다. 서술형 문항에 대한 학생들의 응답을 두 가지 검사 이론을 적용하여 분석하였는데, 평가 문항의 기본적인 양호도 검증을 실시한 결과, 본 연구에서 개발된 서술형 문항들은 난이도와 변별도 면에서 전반적으로 적절한 지수를 보여 수행 평가로 사용하기에 적절한 문항들이었다. 개발한 서술형 수행 평가 문항들은 미리 개발된 성취 기준과 평가 기준을 바탕으로 하였으므로 교수 학습의 목표와 내용에도 적합하였다. 고전 검사 이론과 다분 문항 반응 이론에 의해 분석된 문항의 변별도에는 언어적인 해석의 차이가 없었으나, 문항 난이도의 경우는 고전 검사 이론을 사용하였을 때 집단의 특성이 많이 나타나 다분 문항 반응 이론을 사용한 결과와 비교하여 해석의 차이가 다양하게 나타났다.

• 인간행동과 음악연구
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• 제16권1호
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• pp.73-88
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• 2019

본 연구는 건강 및 경도인지장애 노인의 리듬 재산출 수행력의 차이를 살펴보기 위해 실시되었다. 연구 대상자는 S시 및 A시 소재의 경로당, 치매안심센터, 노인 복지관 등 노인이용기관을 이용하는 만 60세 이상 85세 미만으로 자발적으로 참여를 원하는 건강 노인 30명과 경도인지장애로 진단받은 노인 27명으로 총 57명이다. 모든 검사는 개별적으로 진행되었고 리듬수행과제는 Beat Processing Device(BPD) 앱이 설치된 아이패드를 사용하였다. 본 연구에서 사용된 BPD에는 6가지 리듬꼴이 저장되어 있으며 참여자는 무작위로 재생된 리듬꼴을 듣고 동일하게 2회 재산출하였다. 재산출된 리듬은 전산적으로 저장되었으며 결과 분석을 위해 박간의 간격 비율(R)을 계산하였다. 연구 결과, 건강 노인과 경도인지장애 노인의 리듬 재산출 수행력의 평균값에는 차이가 있었으나 통계적으로 유의하지는 않았다. 박 간의 간격 비율(R)에서 두 집단 모두 <♩ ♩>에서 일치도가 가장 높았으며, <♩. ♪>에서 그 일치도가 가장 낮았다. 수행력 전반에서 건강 노인과 경도인지장애노인 집단 간 유의한 차이는 없었으며, 리듬과제 수행 반복에 따라 두 번째 수행에서 통계적으로 유의하게 낮아진 수행력을 확인할 수 있었다. 이러한 결과는 건강 및 경도인지장애 노인의 리듬 재산출 수행력에 차이는 없었지만 리듬꼴에 따른 난이도를 확인할 수 있었다는 점에서 의의가 있다. 이는 추후 노인 대상 음악치료에서 리듬 연주를 구성할 시 참고할 수 있는 자료로 활용될 수 있다.