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Growth, survival, body composition and amino acid profile of Macrobrachium borellii against the limitation of feeds with different C:N ratios with comments about application in integrated multi‐trophic aquaculture
Aquaculture Research ( IF 1.9 ) Pub Date : 2020-06-04 , DOI: 10.1111/are.14696
Débora Carvalho 1 , Paula Reyes 2 , Verónica Williner 1, 2 , María C. Mora 1 , María F. Viozzi 1, 3 , Cristian J. De Bonis 1 , Pablo A. Collins 1, 3
Affiliation  

One way to attain more sustainable aquaculture systems is through the species diversification and optimization of the feed input, such as obtained by integrated multi‐trophic aquaculture (IMTA). Macrobrachium borellii is a native freshwater prawn that reunites many useful features to be implemented in an IMTA. The aim of this study was to gather information about to which extent M. borellii can survive, grow and maintain body composition against feed limitation. The C:N ratios of feedstuffs were variable in order to simulate a hypothetical scenario of an integrated culture with fish of different trophic habits. The nutritional aspects (amino acid profile and proximal composition) of feeds and prawns were also analysed. Macrobrachium borellii could grow, survive and maintain the proximal content and C:N ratio of its muscle tissue with all feedstuffs but exhibited higher biomass gain and specific growth rate consuming feeds with lower C:N ratios. In this view, the integration of this prawn with omnivore or carnivore fish species should be recommended. The amino acid profile exhibited little variation before and after the experimental period, and was rich in lysine, leucine and arginine. In this study, it was also discussed the nutritional aspects of M. borelliii as a valuable by‐product to human and animal nutrition.

中文翻译:

针对不同C:N比例饲料的局限性,沼虾的生长,存活,体成分和氨基酸谱,以及在综合多营养水产养殖中的应用评论

实现更可持续的水产养殖系统的一种方法是通过物种多样化和优化饲料投入,例如通过综合多营养水产养殖(IMTA)获得的饲料。沼虾是一种天然淡水虾,它重新组合了许多在IMTA中实施的有用功能。这项研究的目的是收集有关M.borllii可以在多大程度上存活,生长并保持身体组成不受饲料限制的信息。饲料的C:N比是可变的,以模拟假设的情景,即采用不同营养习性的鱼类进行综合养殖。还分析了饲料和虾的营养成分(氨基酸分布和近端组成)。沼虾可以在所有饲料中生长,存活并维持其肌肉组织的近端含量和C:N比,但显示出更高的生物量获取量和特定的生长速率,且消耗的饲料中C:N含量较低。根据这种观点,应该建议将这种虾与杂食性或肉食性鱼类融合。在实验前后,氨基酸分布几乎没有变化,并且富含赖氨酸,亮氨酸和精氨酸。在这项研究中,它还讨论了无花紫苏的营养方面,将其作为人和动物营养的宝贵副产品。
更新日期:2020-06-04
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