浙江农业学报 ›› 2024, Vol. 36 ›› Issue (2): 254-263.DOI: 10.3969/j.issn.1004-1524.20221043

• 动物科学 • 上一篇    下一篇

放养模式对日本沼虾生长性状与肌肉营养成分的影响

唐金玉1,2(), 覃宝利2, 叶建勇2, 戴杨鑫3   

  1. 1.浙江省农业科学院 水生生物研究所,浙江 杭州 310021
    2.江苏省农业科学院 宿迁农科所,江苏 宿迁 223800
    3.杭州市农业科学研究院 水产研究所,浙江 杭州 310024
  • 收稿日期:2022-07-15 出版日期:2024-02-25 发布日期:2024-03-05
  • 作者简介:唐金玉(1986—),男,山东高密人,博士,助理研究员,研究方向为水域生态。E-mail:tangjy0@zaas.ac.cn
  • 基金资助:
    江苏省农业科技自主创新资金(CX(18)2016)

Effects of stocking modes on growth traits and muscle nutritional composition of Macrobrachium nipponense

TANG Jinyu1,2(), QIN Baoli2, YE Jianyong2, DAI Yangxin3   

  1. 1. Institute of Hydrobiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
    2. Suqian Institute of Agricultural Sciences, Jiangsu Academy of Agricultural Sciences, Suqian 223800, China
    3. Institute of Fisheries Research, Hangzhou Academy of Agricultural Sciences, Hangzhou 310024, China
  • Received:2022-07-15 Online:2024-02-25 Published:2024-03-05

摘要:

对3种放养处理[T1,与中华绒螯蟹(Eriocheir sinensis)和少量鱼类共养;T2,与沙塘鳢(Odontobutis obscura)共养;T3,与鳙(Aristichthys nobilis)共养]条件下日本沼虾(Macrobrachium nipponense)虾体的生长性状和肌肉营养成分进行分析与比较,以期为淡水经济虾类养殖模式的优化提供参考。结果发现:日本沼虾的全长、头胸甲长、体长和体重在不同放养模式下差异显著(P<0.05),肌肉中的粗蛋白、粗脂肪、粗灰分和水分含量分别为16.54%~17.97%、1.86%~2.25%、0.95%~1.12%和78.69%~80.56%,粗灰分含量在各处理间差异显著。共检出氨基酸17种,其中,必需氨基酸7种,必需氨基酸指数为70.88~73.13,不同处理间丙氨酸含量差异显著;共检出脂肪酸16种,不同处理间脂肪酸种类组成和C18:2 n-6、多不饱和脂肪酸的含量差异显著;检测的9种矿物质元素(Na、K、Ca、Mg、Fe、Cu、Zn、Mn、Cr)中,Na、Mn、Fe、Zn含量在不同处理间差异显著。研究表明,放养模式对日本沼虾的生长性状和肌肉营养具有显著影响,可能与不同放养结构和管理措施造成的养殖环境和食物资源差异有关,生产中需根据放养模式调节营养成分的添加。相较之下,日本沼虾与中华绒螯蟹和少量鱼类共养时,虾肉的鲜美程度、营养价值和保健价值相对更高,可选择该模式来改善养殖虾的营养品质。

关键词: 日本沼虾, 放养模式, 生长性状, 肌肉营养组成, 营养价值

Abstract:

In the present study, 3 types of stocking modes were introduced as treatments, namely, T1, coculture of oriental river prawn (Macrobrachium nipponense) with Chinese mitten crab (Eriocheir sinensis) and some economic fish species; T2, coculture of M.nipponense with dark sleeper Odontobutis obscurus; T3, coculture of M.nipponense with bighead carp Aristichthys nobilis. Their influences on the growth traits and muscle nutritional composition of M. nipponense was evaluated. Results showed that the total length, carapace length, body length and wet weight of M. nipponense were significantly (P<0.05) different among treatments. The varations in contents of crude protein, crude lipid, ash and moisture in the muscle of M. nipponense were 16.54%-17.97%, 1.86%-2.25%, 0.95%-1.12% and 78.69%-80.56%, respectively, of which the ash content was significantly different. A total of 17 amino acids, including 7 essential amino acids were identified, and the essential amino acid index (EAAI) was 70.88-73.13. The contents of alanine were significantly different among treatments. A total of 16 fatty acids were found, and the fatty acid composition and the contents of C18:2 n-6 and polyunsaturated fatty acid were significantly affected by stocking modes. Nine mineral elements, including Na, K, Ca, Mg, Fe, Cu, Zn, Mn and Cr were monitored and the contents of Na, Mn, Fe, Zn were significantly different among treatments. These findings indicated that the alteration of food availability and environmental factors caused by stocking modes could affect the growth traits and muscle nutritional values. Thus, it is necessary to maintain these nutritive substances after changing the aquaculture modes. By comparison, it was concluded that coculture with Chinese mitten crab and some economic fish species could improve the delicious taste, nutritional value and healthcare values of the cultured prawn, which could be served as a promising mode in the further freshwater aquaculture practice.

Key words: Macrobrachium nipponense, stocking mode, growth traits, muscle nutritional composition, nutritional value

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