• Journal of Animal Science and Technology
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• 제52권1호
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• pp.37-42
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• 2010

본 시험은 거세시기가 흑염소의 발육, 육질 및 지방산 조성에 미치는 효과를 구명하기위하여 흑염소 육성축 수컷 45두를 공시하여 거세시기를 각각 달리하여 2008년 3월 21일부터 2008년 10월 31일까지 225일간 실시하였으며 그 결과는 다음과 같다. 일당증체량은 거세시기별로 차이는 없었으나 3개월령과 5개월령에 거세한 것이 다소 높은 경향이었고, 비거세가 거세보다 높은 것으로 나타났다(P<0.05). 도체율은 15일령 거세가 7개월령 거세보다 높았고(P<0.05), 정육율은 거세시기별로 차이가 없었으나 비거세가 거세보다 높았다(P<0.05). 지방율은 거세시기가 빠를수록 높았고 거세가 비거세보다 높았다(P<0.05). 흑염소고기의 일반조성분인 수분함량은 거세시기가 빠를수록 감소하는 경향이었고, 조단백질과 조지방 함량은 거세시기가 빠를수록 증가하는 경향이었다. 육질의 물리적 특성인 전단력, 가열감량 그리고 보수력은 거세시기별로 차이가 없었으며 관능검사 결과 다즙성과 연도는 5개월령 거세가 다소 우수한 경향이었고, 향미는 7개월령 거세가 15일령과 3개월령 거세보다 우수하였다(P<0.05). 포화지방산 함량은 5개월령 거세가 높았고 3개월령 거세가 낮았다(P<0.05). 불포화지방산 함량은 반대로 3개월령 거세가 가장 높았고 5개월령 거세가 낮았으며(P<0.05) 거세와 비거세간에는 차이가 없었다. 단가불포화지방산 함량은 거세기기별로 차이가 없었으나 3개월령 거세가 비거세보다 높았다(P<0.05). 이러한 결과를 종합적으로 고려하면 흑염소의 발육과 육질 개선에 유리한 거세시기는 3~5개월령이 적정할 것으로 사료된다.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2006년도 춘계 종합학술대회 논문집
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• pp.242-245
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• 2006

현대인은 여러 경로를 통하여 다양한 매체를 접하고 있다. 정보통신 강국으로서의 한국은 각종 미디어경쟁의 각축장이기도 하다. 이에 콘텐츠의 질과 기술력이 높아지는 것을 볼 수 있다. 시청각적인 측면의 교육기재 또한 그 종류가 다양해지고 있다. 그렇다면 인형극에 대해서 어떤 시각을 가지고 접근할 수 있을까? 인형극을 특수교육이나 유아교육 수업에서 순기능적인 역할을 위해 활용하는 것을 볼 수 있으며, 인형극이 치료기재로서 사용하게 되는 것을 보더라도 교육적인 도구로서 인형극 이상의 역할을 수행할 수 있다. 이러한 시점에서 인형극이라는 전통적인 미디어를 통해 어떤 과정을 거치면서 이미지가 형성되는가를 살펴보고자 한다. 이에 더하여 영상미학의 원리나 이미지구성 원리를 적용하였을 때 그 효과는 어떨까? 급변하는 시대에 살고 있는 현대인에게 인형극을 통해 정서를 순화시키는 기회가 되길 기대하고, 영상언어를 활용한 이미지 형성과정이 어떻게 진행되는지 살펴보고자 한다.

• 한국게임학회 논문지
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• 제15권4호
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• pp.19-28
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• 2015

유아교육법에 따라 아동들의 학습은 놀이를 통해 이루어지는 것이 권장되지만 재미있게 학습할 수 있는 도구들이 많지 않다. 교육용 기능성게임은 학습 효과를 목적으로 개발되는 게임이므로 본 논문에서는 아동들의 학습을 위한 교육용 기능성 게임을 제작하였다. 게임의 소재는 소화기관이며 모바일 플랫폼의 직관적인 인터페이스인 터치와 드래그를 활용하여 손쉽게 플레이를 할 수 있게 하였다. 또, 각 스테이지의 끝에는 5개의 소화기관의 특성을 학습할 수 있는 씬을 포함하였다. 제작 후 테스트를 통해 향후 본 게임의 보완점을 정리하였다. 또한 아동 교육기관 교사들을 인터뷰하여 본 게임의 학습효과를 확인하였다. 이 게임이 아동들에게 소화기관을 재미있게 학습할 수 있는 도구가 되기를 기대한다.

• 융합정보논문지
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• 제7권6호
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• pp.209-218
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• 2017

본 연구는 사용자 요구를 반영하는 유아용 스마트워치 콘텐츠 모델을 제안하기 위하여 스마트워치 사용 유아의 어머니 15명을 심층면접, 구입동기와 사용실태 및 요구사항을 분석하였다. 스마트워치 구매동기는 대부분 자녀의 안전과 스케줄 관리에 있었으며, 실제로 자녀와 전화 통화나 문자전송, 위치확인 기능을 주로 활용하며 이 기능에 만족하였다. 유아 역시 엄마와 통화하거나 스케줄 관리에 주로 활용하며 일부분 스마트워치에 탑재된 게임도 활용하는 것으로 나타났다. 어머니들은 스마트워치에 탑재된 학습 콘텐츠가 단순한 지식과 학습 위주의 퀴즈 형식 콘텐츠에 대한 아쉬움을 보였으며 스마트워치 게임에 몰두함으로써 발생하는 신체발달과 사회관계에서의 부정적 영향을 우려하였다. 심층 인터뷰를 통해 도출된 사용자 불만 및 요구사항을 기초로 본 연구는 신체 인지 언어 사회정서의 통합적 발달을 지지하며 부모와 자녀가 상호작용할 수 있는 놀이 콘텐츠를 탑재하는 페르소나모델을 제안하였다.

• 한국수학교육학회지시리즈A:수학교육
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• 제40권2호
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• pp.195-215
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• 2001

The purpose of this paper is to present a specific set of home teaching methods in hopes to prevent slow learner of the elementary mathematics. This paper deals with the number and operations, one of five topics in the elementary mathematics A survey of two hundred elementary school teachers was made to see the teacher's opinions of the role of home studying and to concretize the contents of the research topics. There were asked which is the most essential contents for the concrete loaming and which is the most difficult monad that might cause slow leaner. And those were found to be; counting, and arithmetic operations(addition and subtraction) of one or two-digit numbers and multiplication and their concepts representations and operations(addition and subtraction) of fractions. The home teaching methods are based on the situated learning about problem solving in real life situations and on the active teaming which induces children's participation in the process of teaching and learning. Those activities in teaching each contents are designed to deal with real objects and situations. Most teaching methods are presented in the order of school curriculum. To teach the concepts of numbers and the place value, useful activities using manipulative materials (Base ten blocks, Unifix, etc.) or real objects are also proposed. Natural number's operations such as addition, subtraction and multiplication are subdivided into small steps depending upon current curriculum, then for understanding of operational meaning and generalization, games and activities related to the calculation of changes are suggested. For fractions, this paper suggest 10 learning steps, say equivalent partition, fractional pattern, fractional size, relationship between the mixed fractions and the improper fraction, identifying fractions on the number line, 1 as a unit, discrete view point of fractions, comparison of fractional sizes, addition and subtraction, quantitative concepts. This research basically centers on the informal activities of kids under the real-life situation because such experiences are believed to be useful to prevent slow learner. All activities and learnings in this paper assume children's active participation and we believe that such active and informal learning would be more effective for learning transfer and generalization.

• 한국컴퓨터정보학회논문지
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• 제21권6호
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• pp.39-46
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• 2016

In this paper, I proposed the general children's games and showed the design and implementation of children's games which are non-violent, emotionally helpful and good for the development of intelligence. I designed the user interface of the game for children, proposed relevant algorithms, and showed resultant screens of the game. Most of contemporary games are violent to children. To solve such problems, I designed and implemented the game which is not violent but educative and child-friendly. These days, entertainment games or Internet online games have been developed highly biased to children's interest and amusement rather than children's intellectual development. Usually, disabled children are inferior to normal children in movement of their hands and bodies. Therefore, it is hard for them to follow speedy games. This paper shows that the proposed intellectual development of the game can help disabled children not to be violent and to be more intelligent. That was proved by the results through the question investigation. According to the survey, disabled children's any violent actions were not reported after they played this game. Also, this game helped their intellectual development in accordance with the results of this study.

• 한국콘텐츠학회논문지
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• 제15권8호
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• pp.588-597
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• 2015

본 연구는 유아용 그림책에 나타난 5세 누리과정 유아과학교육 내용의 범주별 분포를 알아보고, 유아과학교육 내용의 범주별 분포는 국내 외 그림책과 장르에 따라서 어떤 차이를 보이는지 파악하는데 그 목적이 있다. 연구 대상은 2012, 2013년 어린이도서연구회에서 발간한 <어린이 권장도서 목록>에 수록되어 있는 만 4세~7세 유아용 그림책 219권이었다. 연구도구는 유아용 그림책의 유아과학교육 내용분석을 위하여 5세 누리과정 자연탐구 영역의 내용체계로 제시되어 있는 항목을 사용하였다. 내용분석 범주는 2개의 상위범주와 7개의 하위범주로 설정하였다. 연구 자료는 내용분석 방법으로 분석준거에 의한 각 분석 항목에 해당하는 범주의 빈도와 백분율을 산출하였다. 연구결과는 첫째, 219권의 그림책에 나타난 유아과학교육 내용 상위범주 분석결과 '호기심을 유지하고 확장하기', '생명체와 자연환경 알아보기', '탐구기술 활용하기', '탐구과정 즐기기', '간단한 도구와 기계 활용하기', '물체와 물질 알아보기', '자연현상 알아보기' 순으로 나타났다. 둘째, 국내 외 그림책과 그림책의 장르에 따라서 살펴본 결과, '탐구하는 태도 기르기'보다 '과학적 탐구하기' 내용이 더 높게 분포 되어 있는 것으로 나타났다.

• Asian-Australasian Journal of Animal Sciences
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• 제19권10호
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• pp.1437-1449
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• 2006

Thirty six pre-weaned Barbari kids at 4 months age were reared on four rations computed using coarse cereal grains and by-products of pulses and oil seeds with Crude Protein (CP) and Total Digestible Nutrients (TDN) of 12 and 55% (Low protein Low energy); 12 and 60% (Low protein High energy); 14 and 55% (High protein Low energy); and 14 and 60% (High protein High energy), respectively. After 180 days on feed, male animals ($4{\times}5=20$) were slaughtered to study the effect of diet on carcass characteristics and meat quality. To asses the effect, if any, of such diet on product quality, meat balls were prepared and evaluated for quality changes when fresh as well as during storage ($-20{\pm}1^{\circ}C$). Feeding a ration with CP12 and TDN 60% (LH) to kids produced animals with highest slaughter weight (20.3 kg) yielding higher carcass weight and dressing percentage, lean (65.6%) and fat (6.6%) contents with low bone and trim losses. Although total variety meat yield was markedly higher in HL, the non-carcass fat deposition was relatively higher in LH carcasses. The water activity ($a_w$) of fresh goat meat ranged from 0.994-0.995 and total cholesterol 72.8-90.5 mg/100 g meat. The pH was high in HL and HH meat resulting in decreased ($p{\leq}0.05$) extract release volume (ERV). Meat balls were prepared using meat obtained from goats fed different rations (treatments) and stored at $-20{\pm}1^{\circ}C$. They were evaluated on day 0 and months 1, 2, 3, 4 for physicochemical, microbiological and organoleptic changes. Overall moisture (%), $a_w$, TBA number and pH value were 67.9, 0.987, 0.17, 6.6 respectively and were not affected by treatments except pH that was significantly ($p{\leq}0.01$) lower on LH. As the storage period advanced moisture, pH, $a_w$ and TBA number increased irrespective of treatments. Feeding various diets had no marked effect on microbial load of meat balls but with increasing storage period Standard Plate Count (SPC) and psychrotrophs declined ($p{\leq}0.01$). Treatment LL and LH produced meat balls with better flavour.

• Asian-Australasian Journal of Animal Sciences
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• 제15권12호
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• pp.1719-1724
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• 2002

An investigation was made to evaluate the native range of western India in terms of nutrient supply during different physiological stages in goats. One hundred female and 5 male Kutchi adult goats were grazed on a 35 ha plot of native range. They were maintained on sole grazing. Four experiments, one in a defined physiological stage was carried out. Stage I, when maximum number of females were bred; stage II, when bucks were used for breeding purpose; stage III, 3-months old (weaner) kids were allowed to graze on ranges and stage IV, when the goats were in early stage of lactation. During oestrous period, diet contained 15.2% crude protein (CP), 54.0% neutral detergent fibre (NDF), 31.5% acid detergent fibre (ADF) and 12.6% acid detergent lignin (ADL). Digestibility coefficient of dry matter (DM), CP, NDF and ADF was 0.586,0.531, 0.431 and 0.239, respectively. DM, digestible crude protein (DCP) and metabolizable energy (ME) intakes were $82.7,\;6.71g\;kg^{-1}\;W^{0.75}$ and $0.99MJ\;kg^{-1}\;W^{0.75}$. Diet of buck was constituted by $230g\;kg^{-1}$ DM of grasses and forb and $770g\;kg^{-1}$ DM of tree foliage. CP, NDF, ADF and ADL contents of the diet were 13.6, 57.8, 43.5 and 20.0%, respectively. DM, DCP and ME intakes were $57.9,\;4.13g\;kg^{-1}\;W^{0.75}$ and $0.82MJ\;kg^{-1}\;W^{0.75}$. Digestibility coefficient of CP, NDF and ADF were 0.496, 0.432 and 0.346, respectively. Diet of kids was constituted by Prosopis cineraria ($900g\;kg^{-1}DM$) and Zizyphus nummularia ($100g\;kg^{-1}DM$) leaves. Digestibility of CP, NDF and ADF were 0.456, 0.415 and 0.201, respectively. DM, DCP and ME intakes were $85.8,\;6.44g\;kg^{-1}\;W^{0.75}$ and $1.22MJ\;kg^{-1}\;W^{0.75}$. Lactation phase of goat fell between October-December and tree foliage formed the major portion of the diet. Diet of lactating goat contained only 6.8% CP and 16.5% ADL. Digestibility of DM, CP, NDF and ADF was 0.567, 0.221, 0.307 and 0.233, respectively. DM, DCP and ME intakes were $108.2,\;1.62g\;kg^{-1}\;W^{0.75}$ and $1.50MJ\;kg^{-1}\;W^{0.75}$, respectively. Present study establishes that goats on semiarid range with sufficient number of fodder trees were able to meet the nutrient requirement of ewes during oestrous and bucks during breeding season. However, during lactation and active growth phase, only DM requirement is met. Thus, it is recommended to supplement concentrate mixture to goats grazing on range during lactation and growth phase.

• Asian-Australasian Journal of Animal Sciences
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• 제24권3호
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• pp.351-357
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• 2011

An experiment was conducted to evaluate the effects of castration on growth performance, carcass characteristics, and meat quality of goat kids. Fourteen Boer-cross buck and wether goat kids (n = 7; initial body weight (BW) $38.0{\pm}0.35\;kg$ and $34.8{\pm}0.35\;kg$, for bucks and wethers, respectively) were grazed on annual Marshall ryegrass (Lolium multiflorum Lam.) for 56 days. Body weights were recorded after 4 h withdrawal from feed and water for two consecutive days, every 2 wk. After d 56, animals were harvested and hot carcass weight (HCW), cold carcass weight (CCW), dressing percent (DP), kidney and pelvic fat (KPF), longissimus muscle (LM) area, back fat (BF), and other carcass parameters were measured. Day 0 BW was used as a covariate for analyses. However, bucks were heavier than wethers at d 15 (p = 0.09), 42 (p = 0.001) and 56 (p = 0.001). Bucks had higher ADG (146 vs. 74 g/d; p = 0.001), HCW (21.2 vs. 18.8 kg; p = 0.06) and CCW (20.3 vs. 17.9 kg; p = 0.04) when compared with wether goats. Dressing percentage (51 vs. 47%; p = 0.06), KPF (0.44 vs. 0.16%; p = 0.02) and BF (0.41 vs. 0.21 cm; p = 0.05) were higher in wethers vs bucks, respectively; however, USDA live or carcass grades were similar. Longissimus muscle tissue from wethers and bucks were similar in darkness ($L^*$) and redness ($a^*$), but wethers had more (p = 0.02) yellow tint ($b^*$). Palmitic (C16:0), stearic (C18:0) and oleic (C18:1) acids were higher (p = 0.001) in muscle tissue from wethers compared to bucks. The saturated fatty acid (SFA) and monounsaturated fatty acid (MUFA) contents of muscle tissue were lower (p = 0.001) for bucks with no difference in polyunsaturated fatty acids (PUFA). Longissimus muscle initial temperature was higher in bucks (p<0.04) and pH change post-mortem was similar for bucks and wethers. These results indicated that castration of young market goats reduced growth performance and produced carcasses with more fat and higher SFA.