인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
The increasing pearl jewelries production leads to an increasing demand for pearl oyster ( Pinctada maxima ) seeds of certain sizes. The induction spawning method is an important factor in producing pearl oyster seeds. This study aimed to evaluate natural and artificial induction methods for pearl oyster spawning using wild and farmed broodstocks to determine efficient seed production. Treatments applied were natural spawning induction of wild and farmed broodstocks (A), natural spawning induction of farmed broodstocks (B), and artificial induction of farmed broodstocks (C). After spawning completed, reproductive performances of the pearls for each treatment were observed with parameters of total number of eggs, number of hatching eggs, and the hatching rate. Pearl oyster seeds were reared for 43 days and fed twice a day with a mixture of phytoplankton. At the rearing stage, we observed the morphology, number, size, and survival of larvae. Natural spawning induction with wild male and farmed female broodstocks showed the highest total number of eggs (32,000,000 eggs) and the highest hatching rate (25%) compared to natural induction and artificial induction with all farmed broodstocks. However, natural spawning induction of wild male and farmed female broodstocks showed higher survival and normal seed growth to the spat stage compared to other spawning induction methods.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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