Dietary silver nanoparticle effects on Penaeus vannamei growth, histopathology, faecal microbiome, and acute hepatopancreatic necrosis disease survival.

IF 1.1 4区 农林科学 Q3 FISHERIES
Maribel Maldonado-Muñiz, M G Nieto-López, Mireya Tapia-Salazar, Bruno Gómez-Gil, A Guerrero, Rodolfo Lozano-Olvera, Lucia Elizabeth Cruz-Suarez, Sonia A Soto-Rodriguez
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引用次数: 0

Abstract

This study examines acute hepatopancreatic necrosis disease (AHPND) in shrimp farming, caused by specific strains of Vibrio (Vp AHPND+), and evaluates the potential of silver and silver chloride nanoparticles (Ag/AgCl NP) synthesised from marine resources as an antibacterial additive in shrimp feed. Penaeus vannamei juveniles were fed diets supplemented with 0, 10, 100, and 1000 mg Ag/AgCl per kg for 20 d. The highest weight gain (%WG) was observed in individuals consuming the 100 mg Ag kg-1 diet, with a 104.27 ± 4.11% increase. Histopathological analysis revealed that 10 and 100 mg Ag kg-1 improved hepatopancreas (HP) ultrastructure, whereas 1000 mg Ag kg-1 caused severe lesions, including cell necrosis. After infection with Vp AHPND+, survival rates increased from 27% in the control group to 78% in juveniles fed the 100 mg Ag kg-1 diet for 7 d. Microbiome analysis showed no significant changes in alpha diversity due to Ag/AgCl NP doses, although a notable shift was observed during the depuration phase. These findings highlight the potential of Ag/AgCl NP as a dietary supplement to improve growth, health, and disease resistance in shrimp farming, emphasising the importance of precise dosing to maximize benefits while minimising risks.

饲料纳米银颗粒对凡纳滨对虾生长、组织病理学、粪便微生物组和急性肝胰腺坏死病生存的影响
本研究考察了虾养殖中由特定弧菌(Vp AHPND+)引起的急性肝胰腺坏死病(AHPND),并评估了从海洋资源合成的银和氯化银纳米颗粒(Ag/AgCl NP)作为虾饲料抗菌添加剂的潜力。分别饲喂0、10、100和1000 mg Ag/AgCl / kg的饲料,饲喂20 d。饲料中添加100 mg Ag/AgCl / kg的个体增重(%WG)最高,为104.27±4.11%。组织病理学分析显示,10和100 mg Ag kg-1可改善肝胰腺(HP)超微结构,而1000 mg Ag kg-1可引起包括细胞坏死在内的严重病变。在感染Vp AHPND+后,喂食100 mg Ag kg-1饲料7 d的幼鱼存活率从对照组的27%增加到78%。微生物组分析显示,Ag/AgCl NP剂量对α多样性没有显著影响,尽管在净化阶段观察到显著变化。这些发现强调了Ag/AgCl NP作为一种膳食补充剂在改善虾类养殖中的生长、健康和抗病能力方面的潜力,强调了精确剂量的重要性,以最大限度地提高效益,同时将风险降至最低。
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来源期刊
Diseases of aquatic organisms
Diseases of aquatic organisms 农林科学-兽医学
CiteScore
3.10
自引率
0.00%
发文量
53
审稿时长
8-16 weeks
期刊介绍: DAO publishes Research Articles, Reviews, and Notes, as well as Comments/Reply Comments (for details see DAO 48:161), Theme Sections and Opinion Pieces. For details consult the Guidelines for Authors. Papers may cover all forms of life - animals, plants and microorganisms - in marine, limnetic and brackish habitats. DAO''s scope includes any research focusing on diseases in aquatic organisms, specifically: -Diseases caused by coexisting organisms, e.g. viruses, bacteria, fungi, protistans, metazoans; characterization of pathogens -Diseases caused by abiotic factors (critical intensities of environmental properties, including pollution)- Diseases due to internal circumstances (innate, idiopathic, genetic)- Diseases due to proliferative disorders (neoplasms)- Disease diagnosis, treatment and prevention- Molecular aspects of diseases- Nutritional disorders- Stress and physical injuries- Epidemiology/epizootiology- Parasitology- Toxicology- Diseases of aquatic organisms affecting human health and well-being (with the focus on the aquatic organism)- Diseases as indicators of humanity''s detrimental impact on nature- Genomics, proteomics and metabolomics of disease- Immunology and disease prevention- Animal welfare- Zoonosis
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