饲料中有机酸对中华绒螯蟹幼蟹生长和健康的有益影响

IF 3.7 2区农林科学 Q1 FISHERIES

Aquaculture Reports Pub Date : 2025-06-06 DOI:10.1016/j.aqrep.2025.102918

Zhideng Lin , Yong Lei , Xiaodan Wang , Erchao Li , Chuanjie Qin , Jianguang Qin , Liqiao Chen

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引用次数: 0

摘要

本研究测定了5种有机酸对中华绒螯蟹幼鱼生长和健康状况的影响。对照饲粮不添加有机酸，5种试验饲粮分别添加0.2 %柠檬酸（CA）、苹果酸（MA）、α-酮戊二酸（KG）、富马酸（FA）和乳酸（LA）。试验初始体重为3.09 ± 0.01 g，试验期8周。本研究表明，饲粮中添加CA、KG和FA可显著提高中华赤眼蜂的生长性能和饲料利用率。此外，本研究中使用的所有有机酸，特别是CA、KG和FA，都促进了钙和磷的沉积，可能是通过提高饲粮中有效磷水平和上调钙和磷吸收基因表达，导致全身灰分含量升高。饲粮中CA、KG和FA显著降低了全鱼总脂肪含量，提示这些有机酸可能促进了脂肪的利用。此外，所有有机酸均能提高消化酶、抗氧化酶和磷酸酶的活性。由此可见，饲粮中添加有机酸有利于中华鄂仔鱼的消化能力、抗氧化状态和非特异性免疫。综合各指标的响应情况，我们认为，在5种有机酸中，CA、KG和FA作为饲料添加剂在中华绒螯蟹饲粮中具有较好的应用潜力。

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Beneficial effects of dietary organic acids on growth and health of juvenile Chinese mitten crab (Eriocheir sinensis)

The present study determined the effects of five dietary organic acids on the growth and health status of juvenile Eriocheir sinensis. A control diet was without organic acids, and five experimental diets were supplemented with 0.2 % citric acid (CA), malic acid (MA), α-ketoglutaric acid (KG), fumaric acid (FA), and lactic acid (LA), respectively. The initial body weight of E. sinensis was 3.09 ± 0.01 g, and the experiment lasted eight weeks. The present study indicates that dietary CA, KG and FA can markedly improve growth performance and feed utilization for E. sinensis. In addition, all organic acids used in the present study, especially CA, KG and FA, promoted calcium (Ca) and phosphorus (P) deposition, possibly through increasing available P levels in the diet and up-regulating the gene expression of Ca and P absorption, leading to higher ash content of the whole body. Dietary CA, KG and FA significantly reduced whole-body total lipid content, suggesting that these organic acids may facilitate lipid utilization. Besides, all organic acids increased the activities of digestive enzymes, antioxidant enzymes and phosphatases. These results indicate that dietary organic acids benefit digestive ability, antioxidant state, and nonspecific immunity for juvenile E. sinensis. Considering the response of various indicators, we conclude that among the five tested organic acids, CA, KG, and FA have better potential as feed additives in the diets of E. sinensis.

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来源期刊

Aquaculture Reports Agricultural and Biological Sciences-Animal Science and Zoology

CiteScore

5.90

自引率

8.10%

发文量

469

审稿时长

77 days

期刊介绍： Aquaculture Reports will publish original research papers and reviews documenting outstanding science with a regional context and focus, answering the need for high quality information on novel species, systems and regions in emerging areas of aquaculture research and development, such as integrated multi-trophic aquaculture, urban aquaculture, ornamental, unfed aquaculture, offshore aquaculture and others. Papers having industry research as priority and encompassing product development research or current industry practice are encouraged.