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| 卵生型鱼类卵子发育潜能评估研究进展 |
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赵艳飞1,2,3, 马爱军2,3, 王新安2,3, 孙志宾2,3, 温海深1
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1.中国海洋大学 水产学院;2.中国水产科学研究院 黄海水产研究所 农业部海洋渔业可持续发展重点实验室 青岛市海水鱼类种子工程与生物技术重点实验室;3.青岛海洋科学与技术国家实验室 海洋生物学与生物技术功能实验室
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| 摘要: |
| 鱼类卵子发育潜能(即卵子质量)是繁育工作所用卵子好坏的直接体现。雌性亲鱼性成熟过程中,卵巢内卵母细胞营养物质的积累及其正常减数分裂过程极易受外界环境影响, 进而使亲鱼所产卵子可发育能力往往有较大波动, 故提前预测亲鱼所产卵子的发育潜能, 将对苗种繁育的风险防范及育苗产业健康发展带来积极影响。文章叙述了卵子及其成分特征, 从卵子外形、卵质脂肪酸、氨基酸、蛋白、酶活等生化组成以及母源性RNA 等角度对卵子质量研究现状做了概括, 并对各自研究中存在的问题进行探讨。综上所述, 从形态、脂肪酸、遗传物质等综合方面对卵质进行分析并建立其多元回归模型,将有助于找出影响卵质因素的关键信息; 同时将卵质研究与家系构建相结合, 后续跟踪、统计仔稚鱼至商品鱼这一生长阶段的生长参数, 进行遗传评估, 并最终确立具有最大经济效益的卵子参数, 才是目前经济鱼类卵质标准研究需加强的方向。该研究将为今后卵生型鱼类卵子发育潜能预测方法研究提供科学依据, 同时为鱼类繁育工作风险预判提供具实践性的方法资料。 |
| 关键词: 卵子 发育潜能 生化组成 卵生型鱼类 繁育 |
| DOI：10.11759//hykx20141224003 |
| 分类号: |
| 基金项目:江苏省科技支撑计划(BE2013345); 江苏省水产三新工程项目(Y2013-12); 大连金州新区科技计划项目(2012-B1-012); 现代农业产业技术体系建设专项资金(CARS-50-01); 现代农业人才支撑计划-农业科研杰出人才及其创新团队(2016-2020) |
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| Advances in the evaluation of oviparous fish egg development potential |
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ZHAO Yan-fei,MA Ai-jun,WANG Xin-an,SUN Zhi-bin,WEN Hai-shen
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| Abstract: |
| Fish egg development potential, also known as fish egg quality, can directly reflect the egg quality for breeding. The process of nutrient accumulation in the ovary and the normal meiosis of the oocyte can be easily affected by the external environment, which can also affect the egg developmental potential. Early prediction of egg developmental potential will assist in mitigating risk and in the healthy development of the seeding industry. In this paper, we have summarized fish egg and its components and have analyzed the research status of fish egg quality from different aspects, such as egg shape, biochemical composition, and maternal RNA. Further, existing questions in recent studies have been discussed. In conclusion, analyzing egg quality in terms of morphology, fatty acids, and genetic material, along with other comprehensive analyses and establishing a multivariate regression model of the ooplasm analysis can contribute to finding the key factors affecting egg quality. Meanwhile, in research on the egg quality of economic fish, the following research directions need strengthening: combining egg quality research with family building, counting the growth parameters of the growth stage from the larval and juvenile fish to marketable-size fish, and establishing the maximum economic benefit with genetic assessment. This study will provide a scientific basis for the evaluation of oviparous fish egg development potential for further research on the fish egg quality and also practical methods for risk anticipation in fish breeding. |
| Key words: egg development potential biochemical composition oviparous fish breeding |