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《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:

2012年03期

Page:

81-86

Research Field:

生命科学

Publishing date:

Info

Title:

Studies on Embryonic Development of Crossbreed F1 by Pseudobagras Ussuriensis(♀)×Pelteobagrus Vachelli(♂)

Author(s):

Qin Qin¹; ²; Liang Danni²; Wang Minghua¹; Chen Xiaohui¹; Liu Wenbin²; Cai Yongxiang¹

1.Freshwater Fisheries Research Institute of Jiangsu Province,Nanjing 210017,China

Keywords:

Pseudobagras ussuriensis; Pelteobagrus vachelli; crossbreed F1; embryonic development

PACS:

S961

DOI:

-

Abstract:

The mixture of LRH － A2 + HCG + DOM was injected into Pseudobagras ussuriensis and Pelteobagrus vachelli， before their embryonic development was observed by Nikon 80 iopticalm icroscope． The results showed that: at 24℃ ～ 27℃ of water temperature，23 fetation photographs were taken to describe the whole process． The hatching time of Pseudobagras ussuriensis and Pelteobagrus vachelli were 50 h 9 min and 46 h 50 min respectively． The blastodisc of crossbreed F1formed at 28 min after fertilization，cleavage began at 1 h and blastula stage appeared at 4 h 23 min，gastrula stage at 11 h 3 min． Blastopore closed at 16 h 56 min and heart began beating rhythmically at 38 h 53 min． Some embryos began to break the membrane and came out at 49 h 37 min after fertilization． The total embryonic development time of crossbreed F1 was between that of Pseudobagras ussuriensis and Pelteobagrus vachelli． The total length of crossbreed F1 was more similar to that of the female parent．

References:

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