The artificial propagation and observation of embryonic development in Xingkai lake topmouth culter Erythroculter ilishaeformis farmed in a pond
LI Chi-tao, XU Wei, WANG Jin, YIN Jia-sheng, CAO Ding-chen, SHI Lian-yu
1. Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China; 2. Daqing Fisheries Technical Extension, Daqing 163413, China
Abstract: Xingkai lake topmouth cuher Erythroculter ilishaefo means of hormonal injection and the embryonic development was rmis farmed in a pond was induced to spawn by observed successively. It was found that （92. 32 ± 3.86） % of spawning rate was observed in the injection of the mixture of LRH - A2, HCG and DOM. The best incubation appeared in the aquaria with bottom - aeration, with fertilization of （ 85.69 ± 2. 52） %, hatching rate of （ 84. 63 ± 3.49 ） % and deformity of （ 1.42 ± 0. 61 ） %. The embryonic development, similar to silver carp （Hypophthalmichthys molitrix）, can be divided into to 22 periods. The embryo hatched 24. 32 hours after fertilization with accumulative temperature of 632. 32 ℃ and the larvae began feeding 82 hours after newly hatched, accumulative temperature of 2132 ℃ at water temperature of （26±0. 5）℃. The mature semi -pelagic eggs were light yellow - green or blue -brown in color with （1.16 ±0. 13） mm in diameter, and grew to （4. 15 ±0. 32） mm after hydration. The newly hatched larvae had total length of （ 3.84 ± 0. 48） mm and reached （5.48 ± 0.23 ） mm after initial feeding.
李池陶, 徐伟, 王进, 尹家胜, 曹顶臣, 石连玉. 池塘养殖兴凯湖翘嘴鲌的人工繁殖和胚胎发育观察[J]. 大连海洋大学学报, 2008, 23(2): 87-91.
LI Chi-tao, XU Wei, WANG Jin, YIN Jia-sheng, CAO Ding-chen, SHI Lian-yu . The artificial propagation and observation of embryonic development in Xingkai lake topmouth culter Erythroculter ilishaeformis farmed in a pond. Journal of Dalian Ocean University, 2008, 23(2): 87-91.
2008, Vol. 23 
