Sustainable Aquafeed Formulations Containing Insect Larval Meal and Grape Marc for the New Zealand Farmed Abalone.

IF 3 2区 农林科学 Q1 FISHERIES
Aquaculture Nutrition Pub Date : 2023-10-10 eCollection Date: 2023-01-01 DOI:10.1155/2023/8887768
Natalia Bullon, Andrea C Alfaro, Moganakumaar Manivannan, Seyedehsara Masoomi Dezfooli, Ali Seyfoddin
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Abstract

The aquaculture industry has been criticised for the excessive use of fish meal (FM) in feeds due to the utilisation of wild fish in the formulation and the exacerbation of overfishing marine resources. Land-based abalone aquaculture mainly uses commercial feeds (CFs) to promote faster growth, which include FM as a primary protein component. Alternative ingredients, such as insect meal (IM) and grape marc (GM) are potential candidates for FM replacement due to their suitable nutritional profile and sustainable production. This paper reports on a novel nutritional approach for the New Zealand farmed abalone, which replaces FM with IM by 10% and includes a waste by-product (GM) by 30% as a potential prebiotic source. The study was performed in two stages: (a) physico-chemical determination of diets delivered in an alginate matrix (experimental diets) and their stability in seawater compared to CF and (b) evaluation of growth and feed intake for the New Zealand black-foot abalone. There were significant differences between experimental diets and CF in terms of sinking rate, particle weight, and microscopic observations. Water stability of the experimental diets was increased by 50% in 24 and 48 hr compared to CF, producing less solid waste, and potentially reducing cleaning efforts in the farm. The inclusion of IM and GM did not compromise overall animal growth or their feed conversion ratio, however, further evaluation need to be explored in the future research. The findings revealed that the developed encapsulated feeds are a more stable food delivery method for Haliotis iris compared to the CF. Furthermore, both IM and GM can be included in feed formulations as a more sustainable strategy without compromising weight and shell gains in the abalone farming.

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含有昆虫幼虫粉和葡萄马克的新西兰养殖鲍鱼可持续水产饲料配方。
水产养殖业因饲料中过度使用鱼粉(FM)而受到批评,原因是配方中使用了野生鱼类,以及过度捕捞海洋资源的加剧。陆生鲍鱼养殖主要使用商业饲料(CF)来促进更快的生长,其中包括FM作为主要蛋白质成分。昆虫粉(IM)和葡萄渣(GM)等替代成分由于其合适的营养成分和可持续的生产,是FM替代品的潜在候选者。本文报道了新西兰养殖鲍鱼的一种新的营养方法,该方法用IM代替FM 10%,并包括30%的废物副产品(GM)作为潜在的益生元来源。该研究分两个阶段进行:(a)海藻酸盐基质中提供的日粮的物理化学测定(实验日粮)及其在海水中与CF相比的稳定性;(b)评估新西兰黑足鲍的生长和采食量。实验日粮和CF在沉降率、颗粒重量和显微镜观察方面存在显著差异。实验日粮的水分稳定性在24和48天内提高了50% 与CF相比,小时,产生的固体废物更少,并可能减少农场的清洁工作。IM和GM的加入并没有影响动物的整体生长或饲料转化率,但在未来的研究中需要进一步评估。研究结果表明,与CF相比,所开发的胶囊化饲料是一种更稳定的鸢尾食物输送方法。此外,IM和转基因都可以作为一种更可持续的策略纳入饲料配方,而不会影响鲍鱼养殖中的体重和外壳增长。
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来源期刊
Aquaculture Nutrition
Aquaculture Nutrition 农林科学-渔业
CiteScore
7.20
自引率
8.60%
发文量
131
审稿时长
3 months
期刊介绍: Aquaculture Nutrition is published on a bimonthly basis, providing a global perspective on the nutrition of all cultivated aquatic animals. Topics range from extensive aquaculture to laboratory studies of nutritional biochemistry and physiology. The Journal specifically seeks to improve our understanding of the nutrition of aquacultured species through the provision of an international forum for the presentation of reviews and original research papers. Aquaculture Nutrition publishes papers which strive to: increase basic knowledge of the nutrition of aquacultured species and elevate the standards of published aquaculture nutrition research. improve understanding of the relationships between nutrition and the environmental impact of aquaculture. increase understanding of the relationships between nutrition and processing, product quality, and the consumer. help aquaculturalists improve their management and understanding of the complex discipline of nutrition. help the aquaculture feed industry by providing a focus for relevant information, techniques, tools and concepts.
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