无海洋资源膳食对大西洋鲑鱼质量属性的影响

IF 2.1 3区 农林科学 Q2 FISHERIES Fishes Pub Date : 2024-01-17 DOI:10.3390/fishes9010037
Ewen McLean, Kelly B. Campbell, David D. Kuhn, Michael F. Tlusty, Frederick T. Barrows
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引用次数: 0

摘要

研究人员考察了大西洋鲑鱼在不含鱼粉(FM)和鱼油(FO)的日粮中饲养 90 天对各种质量性状的影响。此外,还研究了添加磷虾粉(KM;0%、2.5% 和 5%)作为饲料增味剂的影响。完全替代 FM/FO 对生产特性的影响有限,仅影响去头和去内脏对照鱼的产量百分比及其标准长度(p < 0.05)。在色素沉着方面观察到了不同日粮组间的差异,以植物蛋白为基础的无 KM 饲料喂养的鱼腹部、NQC(挪威优质鱼种)和背部色调较深(p < 0.03)。鳍的相对状况没有差异。喂食以 FM/FO 为基础的饲料的鱼类的 δ13C 和 δ15N 浓度分别较低和较高(p < 0.05)。δ13C:δ15N在不同处理之间也存在差异,FM/FO饲料喂养的鲑鱼δ13C:δ15N比率更高。鱼片的机械特性随以动物蛋白为基础的日粮的鱼类而变化,没有 KM 表现出更高的弹性和回弹性(p < 0.05)。以植物性饲料喂养的鱼通常更受年轻味觉测试者的青睐。这项试验的结果表明,可以从鲑鱼日粮中完全去除 FM/FO,而不会对质量和适口性属性产生问题。
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The Impact of Marine Resource-Free Diets on Quality Attributes of Atlantic Salmon
The influence of feeding Atlantic salmon for 90 days on diets that excluded fishmeal (FM) and fish oil (FO) was examined for influence on various quality traits. In addition, the effect of adding krill meal (KM; 0%, 2.5%, and 5%), as a putative feed palatant was also examined. Total replacement of FM/FO had a limited effect on production characteristics, affecting percentage yields of headed and gutted control fish and their standard length (p < 0.05). Variances between dietary groups were observed for pigmentation, and plant protein-based KM-free-fed fish returned deeper hues across their belly, NQC (Norwegian Quality Cut), and back portions (p < 0.03). No differences were measured for relative fin condition. δ13C and δ15N concentrations were lower and higher, respectively (p < 0.05) for fish fed the FM/FO-based diet. δ13C:δ15N likewise differed between treatments with FM/FO-fed salmon expressing higher ratios. Fillet mechanical characteristics varied with fish fed on animal protein-based diets, without KM expressing higher springiness and resilience (p < 0.05). Fish fed plant-based diets were generally preferred by younger taste testers. The results from this trial illustrate that FM/FO can be completely removed from salmon diets without problematic effects on quality and palatability attributes.
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来源期刊
Fishes
Fishes Multiple-
CiteScore
1.90
自引率
8.70%
发文量
311
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