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동자개 Pseudobagrus fulvidraco 정자 동결보존 KCI 등재

Sperm Cryopreservation of Korean Bullhead Pseudobagrus fulvidraco

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한국해양생명과학회지 (Journal of Marine Life Science)
(사)한국해양생명과학회 (The Korea Society of Marine Life Science)
초록

본 연구는 동자개 정자의 동결보존을 위해 동결보존제의 최적 농도와 적정 희석액을 구명하여 정자를 최상의 상태로 보존하여 인공종자를 생산하는데 목적이 있다. 실험은 3종의 희석액(Ⅰ: 300 mM glycose, Ⅱ: Kurokura extender, Ⅲ: Li extender), 4종의 동결보존제(dimethyl sulfoxide, ethylene glycol, methanol and glycerol)와 4개의 동결보존제 농도(5, 10, 15, 20%)를 조합하여 대하여 조사하였다. 동결보존한 정자를 해동한 후 정자의 생존율과 정자활성지수로 동결보존 제의 효과를 평가하였다. 희석액 Ⅲ(Li extender)과 10과 15%의 methanol을 조합했을 때 동자 개 정자의 생존율과 정자활성지수는 각각 66.9 ± 8.7, 67.3 ± 13.1%과 2.6 ± 0.4, 2.6 ± 0.5로 다른 희석액과 동결보존제보다 높았다.

This study aims to find out a suitable extender and cryoprotective agent (CPA) for cryopreservation and its optimum concentration in order to conduct planned artificial seed production of Korean bullhead Pseudobagrus fulvidraco and to preserve superior sperm. Experiments were designed to investigate the effects of the different combinations of three extenders (Ⅰ: 300 mM glycose, Ⅱ: Kurokura extender, Ⅲ: Li extender), four cryoprotectants (dimethyl sulfoxide, ethylene glycol, methanol and glycerol) and four concentrations (5, 10, 15, 20%) on the cryopreservation of Korean bullhead sperm. Postthawed sperm survival rate and sperm activity index (SAI) were detected to evaluate the effects of sperm cryopreservation. The optimal combination of extender and CPA for cryopreservation of Korean bullhead sperm was extender Ⅲ + 10 and 15% methanol, resulting in a survival rate and SAI of 66.9 ± 8.7, 67.3 ± 13.1% and 2.6 ± 0.4, 2.6 ± 0.5 respectively, which was higher than had been achieved with other extenders and CPAs.

목차
서 론
재료 및 방법
    1. 실험어 및 정액 확보
    2. 정액 특성 분석
    3. 희석액 및 CPA
    4. 정액 동결보존
결 과
    1. 정액 특성
    2. 희석액 종류와 CPA 및 농도별 동결보존 효과
고 찰
저자
  • 정민환(국립수산과학원 육종연구센터) | Min-Hwan Jeong (Genetics and Breeding Research Center, National Institute of Fisheries Science, Geoje 53334, Korea)
  • 홍창기(국립수산과학원 중앙내수면연구소) | Chang-Gi Hong (Inland Fisheries Research, National Institute of Fisheries Science, Geumsan 32762, Korea) Corresponding author
  • 임재현(국립수산과학원 중앙내수면연구소) | Jae-Hyun Im (Inland Fisheries Research, National Institute of Fisheries Science, Geumsan 32762, Korea)
  • 구인본(국립수산과학원 중앙내수면연구소) | In-Bon Goo (Inland Fisheries Research, National Institute of Fisheries Science, Geumsan 32762, Korea)
  • 박주환(국립수산과학원 중앙내수면연구소) | Ju-Hwan Park (Inland Fisheries Research, National Institute of Fisheries Science, Geumsan 32762, Korea)