• 한국어류학회지
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• 제10권2호
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• pp.184-190
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• 1998

한국 고유종인 눈동자개 Pseudobagrus koreanus의 인공종묘 생산과 자원 증강을 위한 연구의 일환으로 초기 생활사를 조사하였다. 눈동자개의 수정난은 점액 물질이 두텁고 단막 표면위에 방사상의 주름무늬가 있어 특징을 보였다. 난은 구형으로 직경이 $2.59{\pm}0.08$(2.45~2.70, n=10)mm 이었으며 유구는 없다. 수용 $21{\sim}23^{\circ}C$에서 수정 후 첫 번째 난할은 수정 2시간 후에 시작되었으며 이어지는 난할은 약 30분 간격으로 진행되었다. 난할 중 특징으로는 난황 표면이 굴곡하는 운동으로 상실기에서 낭배기 끝까지 관찰되었다. 부화는 수정 후 72시간에 시작하여 90시간에 완료되었으며 부화 자어는 전장 5.41~5.81mm, 항문앞 거리 2.76~2.94mm이었고 근절수는 15~16+33~34(48~50)이었다. 부화 1주 후의 자어는 수염과 부레가 완성되었고 제2등지느러미를 제외한 모든 지느러미가 형성되었으며, 크기는 전장 9.67~10.52mm, 항문앞거리 5.20~5.65mm 이었다. 부화 2주 후의 자어는 모든 지느러미와 반문이 완성되었고 점액이 분비되며, 크기는 체장 14.59~16.02mm, 두장 3.31~4.16mm, 항문앞거리 8.07~9.31mm 이었다.

• 한국언론정보학보
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• 제60권
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• pp.52-74
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• 2012

입법안은 법률조문 자체로 이해하기 보다는 입법 주체간의 정치사회적 관계 속에서 파악할 필요가 있다. 입법안은 국회의원이나 공무원의 고유권한이라기 보다는 정당, 시민단체, 이익집단, 미디어 등 다양한 입법 주체간의 참여와 역동적 커뮤니케이션을 통해 달성된다. 이 연구는 입법과정에서의 커뮤니케이션 특징과 기능을 살펴보기 위해 국내 입법 현장 전문가들을 대상으로 포커스그룹 인터뷰와 개별 심층 인터뷰를 실시했다. 연구결과는 다음과 같다. 첫째, 국내 입법형성 과정은 입법주체 간의 역동적 상호소통 관계 축에서 이루어졌다. 그러나 그 과정에 커뮤니케이션의 난맥으로 효율적이고 생산적인 입법의제를 산출하고 있다고 보기는 어려웠다. 둘째, 국내 입법형성 과정이 제한적이긴 하지만 과거에 비해 행정부라는 폐쇄적인 공간에서 국회라는 정치적 공론장으로 점차 옮겨가고 있음을 발견했다. 셋째, 입법과정에 전문가 집단의 영향력 확대와 시민단체들의 세력화가 두드러지게 강화되는 특징을 보였다. 국회 입법 보좌관을 비롯해 국회 입법조사관, 국회 전문위원, 국회입법 심의관 등 입법 실무자들이 법안 형성과정에 보이지 않게 영향을 미치는 '인사이더(insider)' 역할을 했으며, 동시에 과거 입법형성 과정에 소외됐던 NGO 등 시민단체들의 부상은 주목할 만한 변화였다. 넷째, 의제형성 과정에서 미디어는 국회에 대해서는 공적이슈 개발의 주체이자 입법의제의 전달자로 그 영향력이 컸지만, 정부에 대해서는 입법의제 형성에 미치는 기능이 매우 제한적이었다. 이 논문은 국내 입법안 과정에 커뮤니케이션이 왜 중요하며, 그 과정에 촉진요인과 장애요인이 무엇인지에 대한 함의를 중심으로 논의했다.

• 한국언론정보학보
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• 제49권
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• pp.57-80
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• 2010

본 연구는 한반도 운하 건설에 대한 사회적 갈등문제에 대하여 국내 주요 언론들이 어떠한 시각에서 해석하고 평가함으로써 이슈에 대한 성격을 어떻게 규정하는지 살펴보았다. 이를 위하여 분석대상으로 국내 대표신문인 "조선일보", "한겨레신문", 그리고 "한국일보"를 통해 보도된 한반도 운하관련 뉴스 총 961건을 바탕으로 뉴스프레임 분석을 실시하였다. 분석결과, 정부주도 대형 국책공사의 성격상 스트레이트 뉴스 비율이 가장 높았다. 대운하관련 기사에 대한 프레임 분석결과, 정책집행, 경제적 결과 그리고 생태 환경프레임 비율이 상대적으로 높았다. 신문사별로 "조선일보"는 경제적 결과가, "한겨레신문"은 생태환경이, 그리고 "한국일보"는 정책집행 관련 프레임 비율이 높은 것으로 조사되었다. 주요 이익집단에 대한 분석을 살펴보면, 한반도 대운하 사업주체인 정부 여당 관련 보도빈도가 매우 많았다. "조선일보"는 경제 전문가 집단의 비율이 높은 것을 나타났고, "한겨레신문"은 생태 환경 관련 전문가 집단의 비율이 상대적으로 높았다. 이어서 주요행위자 프레임 분석으로는 정부의 권위적 정책집행과 경제적 결과 프레임에 대한 보도비율이 매우 높았다. 이는 대운하 건설 주체인 정부가 대국민을 상대로 운하건설에 대한 정당성과 필요성이 아닌 권위적이며 일방적으로 밀어 붙이고 있다는 뜻이기도 하다. 마지막으로 신문사별 틀 짓기 행위 프레임에 대한 특성을 살펴보면, "조선일보"는 정부의 열망과 성과 프레임의 비율이 높았으며, "한겨레신문"은 손익 프레임과 과정 프레임이 그리고 "한국일보"는 정부의 집행과정과 실체에 대한 갈등과 분쟁에 대한 보도비율이 높은 것으로 조사되었다.

• 가정과삶의질연구
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• 제28권1호
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• pp.131-143
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• 2010

The purpose of this study is to understand the living culture of transnational married women and to analyze the out door play of children in their hometown. The data was collected through observation from 27th June to 7th July 2008 in Jian, Jilin Province China. The children's play and lifestyles were observed, and data pertaining to the culture of the people were collected by a teacher and staff. We also visited the residents for housing information. The results are given below. 1. They dressed in Korean clothes on festive days and the boys put on a hood. They had eating habits which included cooking for themselves or buying semi-manufactured goods but did not use, instant food. The housing habits involved a combination of cooking and heating by Korean floor heating system(Ondol). They utilized outdoor space to grow vegetables. Those with a fulltime job(teacher) preferred to live in an apartment but an apartment was too expensive. Public utility charges and traffic expenses were cheap. 2. The main festive days are the lunar New Year's Day and Chuseok. The children returned home and enjoyed the festive day with their parents. The language used are Korean language and Chinese. Some Korean words and phrases in Jian Joseonjok have different meanings as compared to how they are used in Korea. A capping ceremony did not to celebrate becoming an adult from an adolescent. Couples performed a wedding ceremony at a wedding hall attended by their parents and invited relatives from both families. The relatives gave the couple a wedding gift. They did not go on a wedding trip as it was not affordable but instead spent their wedding night at a hotel in this culture. When someone dies, they bury the body after cremation. They perform a memorial service for three years on the birthday of the departed. They have a banquet on the 60th birthdays with their relatives and neighbours and are typically presented with a carp for longevity. 3. They understand capitalism and therefore send their children to school to improve their social position. The Korean and Chinese languages are required subjects in school. The students choose a second language(English or Russian). They prefer English class but at the time of this study an English class was not offered at the school in Jian Joseonjok. Therefore the children entered a Chinese school. 4. The children play outdoor games such as Y$\acute{a}$o J$\grave{i}\bar{a}$(要家), X$\grave{i}$ang g$\grave{i}$(象棋), T$\grave{i}\grave{a}$o p$\acute{i}$ j$\grave{i}$n(r)(跳皮節), D$\grave{o}$uch ing g$\grave{u}$n 凍冷根, B$\bar{e}$i B$\bar{e}$i 背背, and soccer. They play games according to the season.

• Journal of Yeungnam Medical Science
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• 제11권1호
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• pp.127-134
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• 1994

1991년 5월 1일부터 1993년 7월 31일까지 영남대학교 의과대학 부속병원 산부인과에서 시행한 136례의 골반경수술에서 다음과 같은 결론을 얻었다. 환자의 나이 분포는 19세에서 55세였고 평균 나이는 31.2세였다. 평균 분만력은 0.96이었으며 거의 대부분의 환자는 2회 이하의 분만력을 보였다. 골반경수술의 가장 많은 적응증은 난관 임신이었고 그 다음으로는 난소낭종이었다. 시술 방법은 주로 난관절제술(58.8%)과 난소난관절제술(16.3%)이었고 입원기간은 평균 2.1일이었고 모든 경우에는 특별한 합병증이 없었다. 이러한 연구결과로 보아 골반경수술은 경제적으로나 사회적으로 또 미용학적으로도 좋은 결과를 보였으며 앞으로 다른 많은 부인과 환자에게 안전하게 적용할 수 있으리라 사료된다.

• Asian-Australasian Journal of Animal Sciences
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• 제28권1호
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• pp.111-119
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• 2015

A growth trial was conducted to determine the optimal incorporation level of dietary magnesium hydrogen phosphate (MHP, $MgHPO_4$), which was manufactured from swine manure and phosphorus (P), required by juvenile far eastern catfish (Silurus asotus). Graded MHP of 0.5%, 1.0%, 1.5%, and 2.0%, and 2.0% monocalcium phosphate (MCP) each was added to the basal diet (control) in lieu of cellulose to become the range of available P (AP) from 0.4% to 0.8% of which diets were designated as control, MHP0.5, MHP1.0, MHP1.5, MHP2.0, and MCP, respectively. Control diet contained fish meal (20%), soybean meal (40%), wheat flour (27%), corn gluten meal (5%), fish oil (2%) and soy oil (2%) as main ingredients. Following a 24 h fasting, 540 fish with a mean body weight of 11.8 g were randomly allotted to 6 groups in triplicate, whereby 18 tanks ($0.4{\times}0.6{\times}0.36cm$, water volume of 66 L) were prepared. The feeding experiment lasted for 8 weeks. Fish group fed the control diet showed the lowest weight gain (WG) and feed efficiency (FE) among treatments. The WG was, however, not significantly different (p>0.05) from that of fish group fed MHP0.5. Fish group fed MHP2.0 showed the highest WG and FE of which values were not significantly different from those of fish groups fed diets MHP1.0 and MHP1.5 as well as MCP (p>0.05) except fish groups fed control and MHP0.5. Aspartate aminotransferase was significantly decreased with an increase in available P, while alanine aminotransferase did not show a significant difference among treatment. The highest inorganic P in plasma was observed in fish fed MHP2.0. From the present results, a second-order regression analysis revealed that the optimal dietary MHP level and the AP requirement were found to be 1.62% and 0.7%, respectively.

• Asian-Australasian Journal of Animal Sciences
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• 제25권3호
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• pp.335-340
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• 2012

The data used came from two trials undertaken under the same climatic conditions (spring-summer). In both trials pluriparious buffaloes were utilized similar in weight, body condition score, and milk production from the previous year. From the first trial the data used was from the sub-period 23-88 DIM provided by seven animals fed ad libitum with diet A (6.69 MJ/kg DM; 158.30 g/kg of crude protein) with a forage/concentrate ratio of 48/52. From the second trial the data used was from the sub-period 33-90 DIM provided by seven animals fed ad libitum with diet B (6.63 MJ/kg DM; 179.50 g/kg of crude protein) and by seven animals fed ad libitum with diet C (5.99 MJ/kg DM; 155.40 g/kg of crude protein), each of the diets had the same forage/concentrate ratio (53/47). A significant difference was found in milk production between group B and C (13.08 vs. 11.56 kg/d, p<0.05), an intermediate production (12.10 kg/d) was noted in group A. A significant difference was found between fat (76.58 vs. 69.24 g/kg, p<0.05), protein (46.14 vs. 43.16 g/kg, p<0.05) and casein (39.94 vs. 34.98 g/kg, p<0.05) of the milk of group B with respect to group A. The milk of group C gave fat values (71.80 g/kg), protein (45.52 g/kg) and casein (39.06 g/kg) statistically equal to those of group B. The milk of groups B and C, in respect to the milk of group A, gave values of $K_{20}$ (1.77, 1.82 vs. 3.68 min, p<0.05), statistically lower and values of $A_{30}$ (48.28, 47.27 vs. 40.64 mm, p<0.05) statistically higher. Two simple linear regressions were calculated where the independent variable (x) was the daily standardized milk production, the dependent variable (y) or the daily intake of net energy or crude protein. Equation 1) NE (MJ/d) = 74.4049+2.8308${\times}$kg of normalized milk; equation 2) CP (kg/d) = 1.4507+0.1085${\times}$kg of normalized milk, both the equations were significant (p<0.05) with determination coefficients of 0.58 and 0.50 respectively. For a production of normalized milk that varies from 9 to 13 kg, the respective energy-protein concentrations fluctuate from 6.09 to 6.78 MJ/kg DM and from 148.00 to 174.46 g/kg DM.

• Asian-Australasian Journal of Animal Sciences
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• 제26권4호
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• pp.558-563
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• 2013

The present study was conducted to estimate energy requirements for maintenance in laying hens by using indirect calorimetry and energy balance. A total of 576 28-wk-old Nongda-3 laying hens with dwarf gene were randomly allocated into four ME intake levels (86.57, 124.45, 166.63 and 197.20 kcal/kg body weight $(BW)^{0.75}$ per d) with four replicates each. After a 4 d adaptation period, 36 hens from one replicate were maintained in one of the two respiration chambers to measure the heat production (HP) for 3 d during the feeding period and subsequent 3 d fast. Metabolizable energy (ME) intake was partitioned between heat increment (HI), HP associated with activity, fasting HP (FHP) and retained energy (RE). The equilibrium FHP may provide an estimate of NE requirements for maintenance (NEm). Results showed that HP, HI and RE in the fed state increased with ME intake level (p<0.05). Based on the regression of HP on ME intake, the estimated ME requirements for maintenance (MEm) was 113.09 kcal/kg $BW^{0.75}$ per d when ME intake equals HP. The FHP was decreased day by day with the lowest value on the third day of starvation. Except for lowest ME intake level, the FHP increased with ME intake level on the first day of starvation (p<0.05). The FHP at the two higher ME intake levels were greater than that at the two lower ME intake levels (p<0.05) but no difference was found between the two lower ME intake levels. Linear regression of HP from the fed state to zero ME intake yielded a value of 71.02 kcal/kg $BW^{0.75}$ per d, which is higher than the extrapolated FHP at zero ME intake (60.78, 65.23 and 62.14 kcal/kg $BW^{0.75}$ per d for the first, second and third day of fasting, respectively). Fasting time, lighting schedules, calculation methods and duration of adaptation of hens to changes in ME intake level should be properly established when using indirect calorimetry technique to estimate dietary NE content, MEm and NEm for laying hens.

• Asian-Australasian Journal of Animal Sciences
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• 제30권5호
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• pp.672-682
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• 2017

Objective: This study was conducted to investigate the effects of probiotic, prebiotic and synbiotic with and without feed restriction on broilers performance, blood parameters, carcass characteristics, and feed cost of production from 1 to 56 days of age. Methods: Two hundred and forty unsexed one day-old chicks of Arbor Acres breed were used. Two trials, I and II, were conducted, with 120 birds in both. Each trial was divided into 4 equal groups. The birds in trial I were fed ad libitum throughout the experiment, while the chicks in trial II were fed ad libitum during the first week of age, then subjected to 5 hours/d of feed restriction from the beginning of the second week up to the end of the experiment. In both trials, the birds in group 1 were fed on a control diet while the other groups were given the same control diet supplemented either with a probiotic in group 2, prebiotic in group 3, or synbiotic in group 4. Results: It was found that chicks fed diets supplemented with probiotic, prebiotic and synbiotic (with and without feed restriction) exhibited higher body weight and feed efficiency than chicks fed the control diets. The feed additives in both trials did not affect hemoglobin, serum total protein, albumin, globulin, glucose, and total cholesterol, except the packed cell volume which was increased in the additive treatments with restriction at the end of the experiment. Moreover, the dietary treatments did not influence the carcass yield. However, the relative weights of liver, gizzard and proventriculus, small intestine and bursa of fabricius were found to be increased. The additives decreased the visible fat in the carcass, with more decreasing effect in the additive groups with restriction. The lowest feed cost per kg of weight gain was observed in the birds fed diets supplemented with synbiotic, probiotic and prebiotic. Feed restriction improved the feed conversion ratio, economic return, but decreased the feed intake, serum total cholesterol and visible fat in comparison with non-restricted groups. Conclusion: The biological feed additives could be routinely added to broiler diets, especially when a feed restriction program is followed. Finally, it can be recommended to restrict feed, and add probiotic or synbiotic to increase weight, improve feed conversion rate and reduce feed cost of production.

• Asian-Australasian Journal of Animal Sciences
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• 제31권9호
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• pp.1458-1463
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• 2018

Objective: This study was done to evaluate the effect of sodium stearoyl-2-lactylate (SSL) supplementation in a total mixed ration (TMR) on the lactation performance, blood parameters, and economic efficacy of mid-lactation Holstein cows. Methods: Twenty-four cows (body weight $647{\pm}11.7kg$) were randomly divided into 4 treatment groups, with six cows per group. The dietary treatments were as follows: basal diet (CON); CON+17.5 g of top dressed SSL (treatment [TRT] 0.05); CON+35 g of SSL (TRT 0.1); and CON+70 g of SSL (TRT 0.2) per 35 kg TMR. Results: The highest level of SSL supplementation (TRT 0.2) significantly improved milk yield during the second period compared to the TRT 0.05 group (5 to 8 wks; 33.28 vs 31.09 kg/d), during the third period compared to both the CON and TRT 0.05 groups (p<0.05) (9 to 13 wks; 32.59 vs 30.64 and 30.01 kg/d) and during the overall experimental period compared to both the CON and TRT 0.05 groups (p<0.05) (1 to 13 wks; 33.43 vs 32.06 and 31.40 kg/d), respectively. No negative effects on hematological or biochemical parameters were observed due to SSL supplementation. Considering both the milk fat and protein content, the total milk price was set at 1,073.60 (TRT 0.05), 1,085.60 (TRT 0.1), 1,086.10 (TRT 0.2), and 1,064.20 (CON) won/L, with consequent total milk profits of -1.7%, 5.4%, and 3.5% for the TRT 0.05, TRT 0.1, and TRT 0.2 diet, respectively, compared to those in the CON diet. Conclusion: The milk sales revenue related to SSL supplementation of the TRT 0.1 diet was increased by up to 5.4% compared to the milk sales revenue of the CON diet. Therefore, 0.1% SSL supplementation might be effective and profitable during the mid-lactation period of cows, without producing adverse effects.