浙江农业科学 ›› 2025, Vol. 66 ›› Issue (5): 1271-1276.DOI: 10.16178/j.issn.0528-9017.20241002

• 资源与环境 • 上一篇    下一篇

温度对马口鱼胚胎发育的影响

翁旭东1(), 翁锦鹏1, 简杰亮2, 曾妮3, 傅瑶3, 徐淋1, 吕梅娣1,*()   

  1. 1.浙江渔老大农业科技有限公司,浙江 衢州 324000
    2.浙江省农业科学院 水生生物研究所,浙江 杭州 310021
    3.龙游县养殖业发展中心,浙江 衢州 324000
  • 收稿日期:2024-12-31 出版日期:2025-05-11 发布日期:2025-05-20
  • 通讯作者: 吕梅娣,高级工程师,研究方向为水产动物养殖与繁育,E-mail:869517141@qq.com
  • 作者简介:翁旭东(1978—),男,高级工程师,研究方向为水产动物养殖与繁育,E-mail:707544643@qq.com
  • 基金资助:
    马口鱼全雄育种技术研究项目:(2023K095);2022年龙游县重大科技攻关课题“揭榜挂帅”项目(JHXM2022008)

Effect of temperature on embryonic development of Opsariichthys bidens

WENG Xudong1(), WENG Jinpeng1, JIAN Jieliang2, ZENG Ni3, FU Yao3, XU Lin1, LYU Meidi1,*()   

  1. 1. Zhejiang Yulaoda Agricultural Science and Technology Company, Quzhou 324000, Zhejiang
    2. Institute of Hydrobiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang
    3. Longyou County Breeding Development Center, Quzhou 324000, Zhejiang
  • Received:2024-12-31 Online:2025-05-11 Published:2025-05-20

摘要: 为了解温度对马口鱼(Opsariichthys bidens)胚胎发育的影响,采用人工授精获得受精卵,通过显微镜观察20、22、24、26 ℃等4个温度条件下胚胎发育情况,并进行拍照记录和分析统计。结果表明:马口鱼孵化历程可分为7个大阶段(胚盘形成期、卵裂期、囊胚期、原肠胚期、神经胚期、器官分化期、孵出期),28个小时期。在20、22、24、26 ℃条件下出膜时间分别为62.33、59.19、53.28、49.53 h,孵化率分别为65.06%、76.11%、78.78%和77.54%;胚胎发育的生物学零度为11.02 ℃,平均有效积温为660.80 ℃·h;初孵仔鱼畸形率在20、22、24和26 ℃条件下分别为24.44%、5.05%、0和0。马口鱼胚胎发育适宜温度为24 ℃,本研究为优化马口鱼繁育技术提供参考。

关键词: 马口鱼, 温度, 胚胎发育

Abstract:

In order to understand the effects of temperature on the embryonic development of Opsariichthys bidens, fertilized eggs were obtained by artificial insemination. The embryonic development at 20, 22, 24 and 26℃ were observed by microscope, and the morphological changes were recorded by photographing. It was found that the embryonic development process of Opsariichthys. bidens was divided into 7 stages (uplift of blastoderm stage, cleavage stage, blastula stage, gastrula stage, neurula stage, organogenesis stage, hatching stage) and 28 small periods. Under the conditions of 20, 22, 24 and 26 ℃, the total embryonic development time was 62.33, 59.19, 53.28 and 49.53 h, respectively, and the hatching rate was 65.06%, 76.11%, 78.78% and 77.54%, respectively. The biological zero of embryonic development was 11.02 ℃, and the average effective accumulative temperature degree was 660.80 ℃·h. The abnormality rates of hatchlings were 24.44%, 5.05%, 0 and 0 at 20 ℃, 22 ℃, 24 ℃ and 26 ℃, respectively. The optimum temperature for embryonic development of Opsariichthys. bidens was 24℃. This study provided reference for the optimization of Opsariichthys. bidens breeding techniques.

Key words: Opsariichthys bidens, temperature, embryonic development

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