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李亚宁, 陈敏, 刘洋, 韩磊, 何焱, 樊启学, 沈志刚. 饲料中小麦胚芽对黄颡鱼雌性亲鱼繁殖性能的影响[J]. 水生生物学报, 2024, 48(2): 264-274. DOI: 10.7541/2023.2023.0024
引用本文: 李亚宁, 陈敏, 刘洋, 韩磊, 何焱, 樊启学, 沈志刚. 饲料中小麦胚芽对黄颡鱼雌性亲鱼繁殖性能的影响[J]. 水生生物学报, 2024, 48(2): 264-274. DOI: 10.7541/2023.2023.0024
LI Ya-Ning, CHEN Min, LIU Yang, HAN Lei, HE Yan, FAN Qi-Xue, SHEN Zhi-Gang. WHEAT GERM SUPPLEMENT ON REPRODUCTIVE PERFORMANCE OF FEMALE BROODSTOCK IN YELLOW CATFISH[J]. ACTA HYDROBIOLOGICA SINICA, 2024, 48(2): 264-274. DOI: 10.7541/2023.2023.0024
Citation: LI Ya-Ning, CHEN Min, LIU Yang, HAN Lei, HE Yan, FAN Qi-Xue, SHEN Zhi-Gang. WHEAT GERM SUPPLEMENT ON REPRODUCTIVE PERFORMANCE OF FEMALE BROODSTOCK IN YELLOW CATFISH[J]. ACTA HYDROBIOLOGICA SINICA, 2024, 48(2): 264-274. DOI: 10.7541/2023.2023.0024

饲料中小麦胚芽对黄颡鱼雌性亲鱼繁殖性能的影响

WHEAT GERM SUPPLEMENT ON REPRODUCTIVE PERFORMANCE OF FEMALE BROODSTOCK IN YELLOW CATFISH

  • 摘要: 为探讨小麦胚芽作为黄颡鱼(Tachysurus fulvidraco)雌性亲鱼培育饲料原料的可行性, 研究以黄颡鱼雌性亲鱼(825尾)为实验对象, 通过投喂不同小麦胚芽添加量 0、5%、10%、15%和20% (w/w)饲料的养殖实验, 比较研究了黄颡鱼雌性亲鱼的肝脏抗氧化能力、血浆生理生化指标、成活率和繁殖性能等。结果显示, 小麦胚芽能显著提高黄颡鱼雌性亲鱼肝脏抗氧化酶活性(P<0.05), 小麦胚芽添加量为10%时的超氧化物歧化酶(SOD)、过氧化氢酶(CAT)和总抗氧化能力(T-AOC) 活性最高, 丙二醛含量(MDA) 最低, 多项式曲线方程显示添加量在11.57%—14.0%抗氧化性能最强。当小麦胚芽添加量达到10%时, 对血浆葡萄糖(GLU) 含量没有影响(P>0.05), 高密度脂蛋白胆固醇(HDL-C) 含量显著升高(P<0.05) , 低/高密度脂蛋白胆固醇含量比值(LDL-C/HDL-C) 显著下降(P<0.05), 利于血脂的健康代谢。因此, 经添加小麦胚芽的饲料进行产前和产后培育, 小麦胚芽组能显著提高黄颡鱼雌性亲鱼的成活率(P<0.05), 绝对繁殖力和相对体重繁殖力与对照W0组相比有所提升(P>0.05); 产后培育阶段, 小麦胚芽添加组W5、W10和W15畸形率显著低于对照组(P<0.05), 孵化率也略高于对照组(P>0.05)。综上, 小麦胚芽能够作为黄颡鱼雌性亲鱼的饲料原料, 建议产前培育添加量为饲料质量的10%—15%, 产后再培育添加量为饲料质量的5%—10%, 能有效改善体质, 提高雌性亲鱼重复使用率。

     

    Abstract: The sustainable development of the aquaculture industry for yellow catfish (Tachysurus fulvidraco) in China has been hindered by a shortage of females and inadequate scientific feeding, as well as the shortage of raw aquatic feed materials. Studies have shown that wheat germ, which containes plant functional nutrient with antioxidant, anticancer, hypolipidemic, and gonad-development promoting effects, could be a potential feed material. This study evaluated the effects of wheat germ on the survival rate, liver antioxidant capacity, plasma physiology and biochemistry, and reproductive performance of 825 female broodstock of yellow catfish, and determined the feasibility of wheat germ as feed material by feeding different wheat germ addition 0, 5%, 10%, 15% and 20% (w/w). The results showed that wheat germ could significantly improve survival rate and liver antioxidant capacity of the female broodstock (P<0.05). Wheat germ significantly improved the enzyme activity of the female broodstock (P<0.05). The activity of superoxide dismutase (SOD), catalase (CAT), and total antioxidant capacity (T-AOC) enzyme was the highest in the 10% wheat germ addition diet, with which the content of malondialdehyde (MDA) was the lowest. The polynomial curve equation showed that the wheat germ addition of 11.57%—14.0% in the diet had the highest antioxidant activity. When the addition amount of wheat germ reached 10%, it did not significantly affect plasma glucose (GLU) (P>0.05). It caused a significant increase in the content of high-density lipoprotein cholesterol (HDL-C) (P<0.05), and a significant decrease in the ratio of low-density lipoprotein cholesterol to high-density lipoprotein cholesterol (LDL-C/HDL-C) (P<0.05). In conclusion, wheat germ can be a beneficial feed material for female parents of yellow catfish, particularly during the pre-spawning period with an addition amount of 10%—15% of diet quality and during the post-spawning period with an addition amount of 5%—10%. The present study provides an important foundation for further broodstock feed development and cultivation.

     

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