대왕바리 암컷을 사용한 두 교잡(대왕바리♀×자바리♂, 대왕바리♀×붉바리♂) 수정란의 난 발생과 부화력The Embryonic Development and Hatchability of Two Hybrids with Giant Grouper Female: Giant Grouper ♀×Kelp Grouper ♂ and Giant Grouper ♀×Red-Spotted Grouper ♂
- Other Titles
- The Embryonic Development and Hatchability of Two Hybrids with Giant Grouper Female: Giant Grouper ♀×Kelp Grouper ♂ and Giant Grouper ♀×Red-Spotted Grouper ♂
- Authors
- 강민주; 노충환; 김재훈; 박종연; 박대원
- Issue Date
- 2020
- Publisher
- 한국수산과학회
- Keywords
- Grouper hybrid; Epinephelus spp.; Fertilized eggs; Hatchability; Deformity
- Citation
- 한국수산과학회지, v.53, no.4, pp.557 - 562
- Journal Title
- 한국수산과학회지
- Volume
- 53
- Number
- 4
- Start Page
- 557
- End Page
- 562
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/19622
- ISSN
- 0374-8111
- Abstract
- As part of an effort to establish of novel grouper hybrids for the aquaculture industry, we compared the embryonic development of fertilized eggs of giant grouper Epinephelus lanceolatus ♀×kelp grouper E. bruneus ♂ (GGKG) and giant grouper ♀×red-spotted grouper E. akaara ♂ (GGRG) with a maternal purebred (giant grouper ♀×♂, GG) at 27- 29°C. The hatching rates were lower in GGKG (2.59%) and GGRG (0.36%) than in GG (12.29%). The hatching times were considerably longer in the two hybrids than in GG (22 h), which were similar between GGKG (28 h 30 min) and GGRG (28 h). The total lengths of yolk-absorbed larvae of GGKG (2.546±0.132 mm) and GGRG (2.602±0.093 mm) were similar to that of GG (2.565±0.149 mm). The deformity rates of hatched larvae (64.29-75.00%) did not differ between the two hybrids and GG. Although the hatching and deformity rates of GGKG and GGRG were inferior to those of GG, the possibility of mass production of the two hybrids larvae was demonstrated in this study.
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