• 대한가정학회지
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• 제27권3호
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• pp.39-51
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• 1989

In this study, 419 students of the 6th grade in three schools in Masan were surveyed. The students having less than 24 items among 48 protein-rich foods easily obtained were considered as unbalanced-diet students. Their general circumstances, character, status of growth and development and school performance were compared with those of balanced-diet students. The results were following. 1. The actual condition of unbalanced diets of protein-rich food 1) Female showed high degree of unbalanced diet in meat food while male in shell-food. Both sexes liked processed food stuffs such as ham, sausage and boiled fish paste but not salted. Both of them disliked beans. 2) The reason for unbalanced diet, they answered, was bad taste and smell of some foods. The reason, their mothers amswered, was they fed their children some particualr foods. 3) The attitudes of the mothers against unbalanced diets were coaxing their children to eat some foods for they are good for health or forcing their children to eat some foods. The most effective method on the children was coaxing and the next was changing cuisines. 2. The general circumstances of the students. 1) 168 students (male: 85, female:83) among 419 students who were studied were unbalanced-diet students and the extent of unbalanced diet was similar in both sexes. 2) The rate of unbalanced-diet students was higher among the students who were the first child in the family, had a small family or were fed milk or mixed milk. 3) The school career of unbalanced-diet student's mothers was higher and the rate of unbalanced-diet students was higher among the students who have rich families or career mothers. 3. The status of physical condition 1) The height and weight of unbalanced-diet students were lower than those of the standard of Korean children. The status of balanced-diet students were better than that of the standard. 4. Degree of school performance 1) The school records of unbalanced-diet students was 81.4 points in average, which was 1.3 points lower than the average of city students and that of balanced-diet students was 2.8 points higher than average. There was a significant gap between the two groups. 5. The relation between unbalanced diet and character 1) Compared balanced-diet students, unbalanced-diet students showed high degree of nervousness and coldheartedness and low degree of self-reliance and self-possession. There was a significant gap between the two groups and it showed that unbalanced diets affected the formation of character.

• 한국패류학회지
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• 제28권2호
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• pp.131-136
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• 2012

북방전복의 계절변동에 따른 대사변화 및 에너지흐름을 파악하기 위하여 2010년 5월부터 2011년 2월 동안 성장, 산소소비율, 암모니아질소배설률, 먹이섭취율 및 동화효율 등을 조사하였다. 조사기간 동안 수온은 $8-23.2^{\circ}C$, 염분은 31.9-34.1 psu이었다. 북방전복의 각장은 1년산에서 36.3 mm에서 66.1 mm으로, 2년산에서는 60.6 mm에서 66.1 mm으로 성장하였으며, 육중은 각각 3.16 g에서 12.04 g과 15.8 g에서 21.5 g으로 증가하였다. 산소소비율과 암모니아질소배설률은 수온 상승에 따라 증가하는 경향을 보였으며, 먹이섭취율은 7월-10월 동안 높았다. 동화효율은 68-71 %으로 연령 및 계절간 유의한 차이는 없었다. SFG는 북방전복 1년산은 연중 +값을 보였으며, 2년산의 경우에는 7월을 제외하고 +값을 보여 연중 성장하는 것으로 나타나 조사기간 동안 수온, 염분 등에 의한 환경적인 영향은 없었다.

• 한국어병학회지
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• 제26권3호
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• pp.139-148
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• 2013

패각 및 석회기질을 천공하는 것으로 잘 알려져 있는 Polydora 속(Polychaeta, Spionidae) 다모류는 종종 전복을 포함한, 상업적으로 중요한 패류에 침입하여 성장률 및 육중량 감소와 상품가치를 하락시키다. 2012년 우리나라 전복 가두리 양식장 10개소를 대상으로 패각 천공성 다모류의 감염현황을 조사한 결과, 활전복에서는 5~99%, 죽은 전복 패각에서는 5.3~70.3%의 감염률을 보였다. 이들 전복은 진주층으로 덮힌 blister 및 패각변형이 일어났으며 패각 표면에는 Polydora가 서식하는 도관(burrow)으로 연결된 2개의 구멍이 확인되었다. 여기에서 분리된 Polydora는 성체의 길이가 40mm 이상으로 검은 띠가 있는 두드러진 palps, 꼬리 말단부위의 원반형 pygidium 및 4개의 eyespots을 가지는 것이 특징적이었다. 본 연구는 우리나라 전복 가두리 양식장의 패각 천공성 다모류 감염현황에 대한 첫 보고이다.