• The Science & Technology
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• no.10 s.425
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• pp.72-77
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• 2004

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.10a
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• pp.285-286
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• 2001

진주조개(Pinctada fucata martensii)는 일본의 남부지역에만 분포하는 종으로 양질의 진주를 생산하는 주된 양식 대상종이다. 우리나라에서는 1960년대 일본으로부터 이식하여 양식하고 있으나, 자연채묘에 의한 종묘 수급에 어려움을 겪고 있다. 이러한 어려움을 해결하기 위해서는 인공 종묘생산이 이루어져야 하며, 이의 확립을 위해서는 건강하고 우량형질을 지닌 어미와 함께 원활한 유생의 공급이 필요하다. 그 한가지 방법으로서 발생배의 대량 냉동보존을 들 수 있는데, 만일 진주조개 배우자의 냉동보존 기술이 확립된다면, 연중 인공 종묘생산과 선발육종이 가능해지고 우량종의 유전자를 보존할 수 있게 된다. (중략)

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.05a
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• pp.168-169
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• 2001

우렁쉥이는 생식으로 기호성이 높은 수산 식품원으로 그 생산량이 양식기술의 발달과 함께 매년 증가하여 과잉생산에 의한 가격 하락 상태에 있다 특히 현재 생식이외의 특별한 가공방법이 개발되어 있지 않으므로 수산가공공장에서는 육을 소금물과 포장하여 냉장 판매하고 있으며 이때 발생하는 껍질은 전량 폐기물로, 분해가 어려울 뿐만 아니라 그 이용도가 거의 없어 바딘가와 해변가에 버려져 폐기물로 인한 새로운 연안환경오염문제로까지 대두되고 있다. (중략)

• Clinical and Experimental Reproductive Medicine
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• v.37 no.4
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• pp.267-291
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• 2010

Life can be kept in suspended animation either before fertilization at oocyte stage or after fertilization at different stages of embryonic development for a variety of reasons. It not only has potential applications in fertility preservation and management in human but also has important roles in the preservation and management of animal genetic resources, low-cost international movement of selected genetics, and rapid dissemination of germplasm through assisted reproductive technologies (ART) and genetic engineering. Currently, slow-freezing and vitrification are the two approaches by which oocytes and embryos can be cryopreserved for long-term storage. Both of these methods have their own advantages and disadvantages but allow the cryopreservation of oocytes and embryos with comparable efficiency. Vitrification of oocyte and embryos, although proven successful just 13 years after slow-freezing, is generally considered an emerging technology and appears to slow gain acceptance in both animal and human ART despite having controversial storage and contamination issues. In this manuscript, we discuss the basic techniques of oocyt/embryo cryopreservation and review the current status and recent developments in vitrification.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.10
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• pp.62-67
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• 2019

We studied the effect of several sex-related steroid hormones (serotonin, progesterone and ${\beta}$-estradiol) for 6 days on the induction of sexual reproduction for the mass production of resting eggs in the marine rotifer Brachionus rotundiformis. The highest mix rate of 20.6% appeared with the ${\beta}$-estradiol ($E_2$) treatment on the third day. The number of resting eggs was highest with $E_2$ treatment, followed by that of the serotonin treatment group. In addition, we investigated the effect of the hormones on the expression pattern of the genes related to sexual reproduction in the rotifer. NrbP, SRY, Cyclin and MrpmB genes were up-regulated with all the hormone treatments. As a result, ${\beta}$-estradiol was more effective than the other hormone treatments to produce resting eggs in B. rotundiformis. We suggest that the sexual reproduction-related genes in the rotifer are the NrbP, SRY, Cyclin and MrpmB genes. Further study is required to determine the optimum concentration of $E_2$ for the effective production of resting eggs in the rotifer.

• 대한생식의학회:학술대회논문집
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• 2004.11a
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• pp.56-57
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• 2004

• 대한생식의학회:학술대회논문집
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• 2001.11a
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• pp.89.1-89.1
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• 2001

• The Journal of the Convergence on Culture Technology
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• v.10 no.5
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• pp.809-818
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• 2024

This study aims to identify the factors influencing on reproductive health-promoting behaviors in early adult men. From May 1 to June 20, 2024, data were collected from 124 early adult men in area D using a structured questionnaire. Data analysis was performed with SPSS 22.0, employing difference tests, one-way ANOVA, Pearson correlation, and stepwise multiple regression analysis. Key influencing factors included internet use for over 4 hours per day (β=-0.24, p=0.047), self-efficacy (β=0.21, p=0.024), and the use of vaginal withdrawal as contraception (β=-0.20, p=0.019), explaining 20.0% of the variance in reproductive health-promoting behavior. There is a need for educational programs or practical interventions to improve reproductive health promotion behavior in early adult men.

• Development and Reproduction
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• v.2 no.2
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• pp.115-133
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• 1998

Recently public concerns about the endocrine disrupting chemicals (EDC) have resulted in the increased legistrative and regulatory attentions in many countries. Endocrine disrupter is an exogeneous chemical interfering the synthesis, transport binding, action or elimination of natural hormones in the body, which are responsible for the maintenance of homeostasis, reproduction, development and/or behavior. Reported possible harmful effects on human and animal lives, possible developmental anomalities, reproductive malfunctions and behaviors, and the ways of EDC accumulation in animal kingdom are reviewed. The current scientific papers and knowledges on the global contamination of EDCs demonstrates the conclusive data that EDCs have the potentials to cause the calamitous extermination of human and animal species by the global contamination.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2003.05a
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• pp.370-371
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• 2003

제주연안에 서식하는 고둥류 구멍밤고둥, Chlorostoma argyrostoma turbinata, 밤고둥, Chlorostoma argyrostoma lischkei, 명주고둥, Chlorostoma xanthostigma, 눈알고둥, Lunella coronata coreensis, 울타리고둥, Monodonta labio을 대상으로 생식주기를 탐색하였다. 이를 고둥류는 우리나라 전연안의 조간대 지역에 분포하며 해조류가 풍부한 플에 주로 서식 한다(권 등, 1993). 그리고 고둥류는 조간대의 군집분포와 분류학적으로 많은 연구가 진행되고 있다. (중략)