Comparison of development and growth of hybrid Chromileptes altivelis(♀) × Epinephelus tukula(♂)

We performed breeding experiments with Chromileptes altivelis as the female parent and Epinephelus tukula as the male parent by artificial fertilization to breed new species of groupers with excellent traits. Besides, we observed and compared the embryonic development and growth characteristics of C...

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Published inNanfang shuichan kexue no. 1; p. 17
Main Authors Li, Zhentong, Tian, Yongsheng, Cheng, Meiling, Wu, Yuping, Zhang, Jingjing, Li, Ziqi, Wang, Linna, Ma, Wenhui, Pang, Zunfang, Sun, Lijuan, Zhai, Jieming
Format Journal Article
LanguageChinese
Published Guangzhou Chinese Academy of Fishery Sciences 01.01.2020
Subjects
Animal embryos
Biological fertilization
Body mass
Breeding
Calloplesiops altivelis
Chromileptes altivelis
Cromileptes altivelis
Eggs
Embryonic development
Embryonic growth stage
Epinephelus
Epinephelus tukula
Fins
Fish
Heterosis
Hybridization
Larvae
Larval development
Larval stage
New species
New variety
Water temperature
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Summary:We performed breeding experiments with Chromileptes altivelis as the female parent and Epinephelus tukula as the male parent by artificial fertilization to breed new species of groupers with excellent traits. Besides, we observed and compared the embryonic development and growth characteristics of C. altivelis(♀) ×E. tukula(♂) and C. altivelis by microscope(Nikon E200) and anatomic microscope(Olympus). The results show that the fertilized eggs of the hybrid and C. altivelis took 24 h 50 min and 25 h 8 min to accomplish the embryo development under the conditions of water temperature 27 ℃, salinity 30, pH 8.1 with the micro-flowing water and micro-inflated water, respectively. The post-embryonic development of the hybrid had experienced four stages of early larva(0-3 d), late larva(4-40 d), juvenile(41-60 d) and young fish stages(after 61 d). At 330 days of age, the total lengths of the hybrid and C. altivelis were(23.57±0.94) cm and(18.35±0.72) cm, respectively; and the body masses were(220.5±25.3) g and(142.
ISSN:2095-0780