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中国农学通报 ›› 2014, Vol. 30 ›› Issue (35): 132-138.doi: 10.11924/j.issn.1000-6850.2014-1369

所属专题: 水产渔业

• 水产 渔业 • 上一篇    下一篇

投喂皇竹草和生物絮团草鱼稚鱼生长性能的对比及营养成分评价

于凌云   

  1. 中国水产科学研究院珠江水产研究所
  • 收稿日期:2014-05-13 修回日期:2014-12-04 接受日期:2014-08-08 出版日期:2015-03-18 发布日期:2015-03-18
  • 通讯作者: 王广军
  • 基金资助:
    国家科技支撑计划“草鱼新品种选育”(2012BAD26B02)、“池塘优势生物群落调控管理技术研究”(2012BAD25B01);国家高技术研究发展 计划项目“草鱼重要经济性状相关基因的克隆及功能验证”(2011AA100403)

Evaluation of nutrient composition and comparison of growth performance of juveniles of parentage grass carp, Ctenopharyngodon idellus, fed with bio-floc and Pennisetum sinese

  • Received:2014-05-13 Revised:2014-12-04 Accepted:2014-08-08 Online:2015-03-18 Published:2015-03-18

摘要: 为了评价生物絮团作为草鱼稚鱼饵料的营养价值,以草鱼(Ctenopharyngodon idellus)稚鱼为研究对象,以皇竹草(Pennisetum sinese)为对照,养殖60天后测定草鱼稚鱼的生长指标、肌肉营养成分组成与含量。结果表明:生物絮团组草鱼平均尾末质量与皇竹草组相比提高了1.14倍,生物絮团组草鱼的体长、成活率和肥满度均优于皇竹草组。生物絮团组和皇竹草组的草鱼肌肉常规营养成分中的粗蛋白和碳水化合物差异显著(P<0.05),但粗脂肪和灰分含量基本一致。另外,生物絮团组和皇竹草组草鱼肌肉氨基酸中均含有16种常规氨基酸和4种鲜味氨基酸(天冬氨酸、谷氨酸、甘氨酸和丙氨酸),其常规氨基酸总质量分数分别为(17.1±1.24)%和(16.803±1.030)%,氨基酸各组成成分均无显著变化;生物絮团组草鱼肌肉中多不饱和脂肪酸(PUFA)和高不饱和脂肪酸(HUFA)总数分别为(32.2±4.05)%和(34.61±4.08)%,极显著高于皇竹草组(P<0.01)。可见,生物絮团养殖模式不仅能提高草鱼稚鱼的生长性能,而且能在不改变肌肉氨基酸组成和鲜味的条件下明显提高其肌肉中营养价值中的不饱和脂肪酸含量,因此,生物絮团可以作为草鱼稚鱼的一种新型优质饵料。

关键词: 冠层, 冠层

Abstract: To evaluate the value of biofloc technology nutrition, the growth traits and nutritional composition of muscle of grass carp farmed about 60 days were analyzed in the model of biofloc technology (BFT) (as the experimental group) and Pennisetum sinese Roxb( as the control group). As analyzed, the ratio of weight gain of grass carp using BFT were 1.14 times than the control group, and body length, survival rate and condition factor of grass carp were more than the control group. Crude protein and carbohydrate of muscle between the BFT and grass group were significant difference(P<0.05), however, crude fat and ash content of muscle of grass carp were basically identical. In addition, there are sixteen kinds of conventional amino acids and four kinds of delicious amino acids (Asp, Glu, Gly, Ala ); The total content of amino acid were(17.1±1.24)% and(16.803±1.030)% in two groups, respectively, but there were no significant difference between them(P>0.05). The total content of PUFA and HUFA were (32.20± 4.05) % and (34.61 ± 4.08) % in the experimental group, respectively; which was significantly higher than the control group(P<0.01). In summary, the model of BFT was not only improve the growth performance of the juvenile grass carp, but also increase the nutritive value of muscle under no changing the amino acid composition and delicious amino acid. So, BFT may serve as a new type of high quality bait of grass carp’s juveniles.