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当前位置: 首页 > 文章 > 饲料卵磷脂对施氏鲟血清卵黄蛋白原、卵径及性类固醇激素水平的影响 中国水产科学 2010,17 (4) 783-790
Position: Home > Articles > Effects of phospholipids content in reserved brood diets on egg diameter performance,plasma sex steroids and vitellogenin levels in Amur sturgeon Acipenser schrenckii Journal of Fishery Sciences of China 2010,17 (4) 783-790

饲料卵磷脂对施氏鲟血清卵黄蛋白原、卵径及性类固醇激素水平的影响

作  者：
张颖;孙慧武;徐伟;孙大江;曲秋芝;刘晓勇;张永旺
单  位：
中国水产科学研究院
关键词：
施氏鲟;后备亲鱼;卵磷脂;卵径;Vg;E2;T
摘  要：
采用不同大豆卵磷脂添加量[0、1%、2%、4%(w/w饲料)]的4种人工配合饲料(分别简称SL0、SL1、SL2和SL4)投喂5+龄施氏鲟(Acipenser schrenckii)后备亲鱼14个月,通过比较各饲料组实验鱼的血清卵黄蛋白原(Vg)、卵径和性类固醇激素水平,探讨大豆卵磷脂对施氏鲟性腺发育的影响机理,并为今后深入研究鲟亲鱼磷脂营养代谢提供基础数据。结果表明,饲料中大豆卵磷脂含量对施氏鲟的卵径发育无显著影响,对血清中Vg、睾酮(T)和雌二醇(E2)的浓度影响显著。投喂量为2%组的血清E2质量浓度(147.91pg·mL-1)显著高于0%(113.72pg·mL-1)和1%(129.63pg·mL-1)组(P<0.05),而4%组的血清E2质量浓度为139.68pg·mL-1,介于二者之间。随着投喂时间和投喂浓度的增长,施氏鲟后备亲鱼的血清T含量浓度降低,而血清Vg浓度随日粮卵磷脂的添加水平和时间增加而升高。结果提示:①施氏鲟卵黄发生期后备亲鱼饲料卵磷脂的适宜添加量为2%,不足或过量对后备亲鱼的生殖机能均有不利影响;②通过影响血清T的产生从而影响施氏鲟的生殖可能是饲料中卵磷脂在施氏鲟生殖机制中的作用之一;③在施氏鲟后备亲鱼强化培育中可通过适当添加卵磷脂的量,从而实现性腺的正常发育,进而改善性腺发育状况、提高施氏鲟的繁殖性能。
译  名：
Effects of phospholipids content in reserved brood diets on egg diameter performance,plasma sex steroids and vitellogenin levels in Amur sturgeon Acipenser schrenckii
作  者：
ZHANG Ying 1 ,SUN Huiwu 2 ,XU Wei 1 , SUN Dajiang 1, QU Qiuzhi 1, LIU Xiaoyong 2, ZHANG Yongwang 2 (1. Heilongjiang River Fishery Research Institute,Chinese Academy of Fisheries Sciences,Harbin 150070,China;2. Technological and Engineering Center of Sturgeon’s Reproduction,Chinese Academy of Fisheries Sciences,Beijing 100141,China)
关键词：
Amur sturgeon;reserved brood stock;soybean lecithin;egg diameter;Vg;E2;T
摘  要：
In order to study the effects of soybean lecithin(SL)content in reserved broodstock diets at egg diameter, plasma sex steroids and Vitellogenin(Vg) levels. Four groups of 24 female reserved broodstocks,with an individual body weight ranging from 5 107 to 5 361 g,were respectively fed four artificial formulated diets containing 0%( SL0), 1%( SL1),2%( SL2)and 4%( SL4)of soybean lecithin diets for of 14 months. Their egg diameter,plasma E2,T and Vg were evaluated,and the levels of plasma sex steroids and Vg were monitored. The results showed that female fed the diet with 0% CL had significantly less egg diameter than those fed with other content CL( P>0.05). After 14 months of feeding,fish fed with 2% CL had a significantly higher serum E2 content than that with 0% SL(113.72 pg·mL-1) and 1% SL(129.63 pg·mL-1),while the serum E2 content of 4% SL was 139.68 pg·mL-1,between in them(P<0.05). With the dietary soybean lecithin feeding time and content increased,serum T level had a significantly lower value(P<0.05). The level of serum Vg increased asdietary SL level increasing,with females fed diets with 4% SL had a significantly higher values than other groups(P<0.05). In conclusion,the results suggest that the optimum SL requirement in reserved broodstock diet of Amur sturgeon was 2%. Soybean lecithin may affect plasma Vg and T levels to promote the reproductive performance of Amur sturgeon. So the optimum soybean lecithin content in Amur sturgeon reserved brood- stock will improve the ovary development and increase reproductive ability.

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