Biochemical composition and quality of turbot (Scophthalmus maximus) eggs throughout the reproductive season
文献类型: 外文期刊
作者: Jia, Yudong 1 ; Meng, Zhen 1 ; Liu, Xinfu 1 ; Lei, Jilin 1 ;
作者机构: 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China
2.Qingdao Key Lab Marine Fish Breeding & Biotechnol, Qingdao 266071, Peoples R China
关键词: Turbot (Scophthalmus maximus);Biochemical composition;Egg quality;Reproduction
期刊名称:FISH PHYSIOLOGY AND BIOCHEMISTRY ( 影响因子:2.794; 五年影响因子:2.876 )
ISSN: 0920-1742
年卷期: 2014 年 40 卷 4 期
页码:
收录情况: SCI
摘要: The present study investigated the biochemical composition and quality of turbot (Scophthalmus maximus) eggs throughout the reproductive season. Results showed that the fertilization, hatching and egg floating rates were variable throughout the reproductive season, with the highest values recorded during the mid-season. Meanwhile, positive correlations were found between fertilization, hatching rate and floating rate. The composition of turbot eggs, including total lipid, protein, carbohydrate, moisture and dry weight showed no significant differences during the reproductive season. Furthermore, no correlations were found between egg compositions and viability parameters (VPs), including fertilization and hatching rates as well as larval deformity rate. However, egg diameter varied and correlated with fertilization, hatching and egg floating rates. The fatty acid in eggs at mid-season had significantly higher levels of C14:0, C16:0, C16:1n-7, C18:0, C18:1, C20:4n-6, C20:5n-3 and C22:6n-3. Moreover, significant relationships were found between fatty acids and VPs. Eggs of the middle season had significantly higher concentration of isoleucine, leucine, lysine, methionine, valine, alanine, aspartate, glutamate and serine, whereas no significant relationships were found between amino acids and VPs. These observations suggest that the biochemical profile of eggs may be useful in evaluating egg quality and improving broodstock management for turbot.
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