Replacement of fish oil with sunflower oil in feeds for Atlantic salmon (Salmo salar L.):: effect on growth performance, tissue fatty acid composition and disease resistance
Replacement of fish oil with sunflower oil in feeds for Atlantic salmon (Salmo salar L.):: effect on growth performance, tissue fatty acid composition and disease resistance
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DOI：
10.1016/s1096-4959(03)00143-x
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发表时间：
2003-08-01
影响因子：
2.2
通讯作者：
Nichols, PD
中科院分区：
文献类型：
--
作者：
Bransden, MP;Carter, CG;Nichols, PD
用葵花籽油（SFO）逐步替代6种含鱼粉饲料中的鱼油（FO）饲喂大西洋鲑鱼（初始质量：21.7 g）。63 d后监测对生长性能、组织脂肪酸谱和抗病性的影响。试验结束时，两种饲料的生长均无显著差异。全胴体、背肌和肝脏的脂肪酸组成基本反映了日粮的脂肪酸组成。在组织22:6n-3显著减少之前，40%的FO可以被SFO取代，尽管其他必需和非必需脂肪酸更容易发生变化。在试验结束时，大西洋鲑鱼受鳗弧菌攻击的累积死亡率发现了显著差异，尽管这与SFO的纳入水平无关。尽管观察到组织脂肪酸谱发生了变化，但对生长没有显著影响，这表明当鱼粉也加入时，SFO是大西洋鲑鱼幼鱼饲料中FO的合适替代品。(C) 2003爱思唯尔科学有限公司版权所有。
Dietary sunflower oil (SFO) was used to gradually replace fish oil (FO) in six diets (which also contained fish meal) for Atlantic salmon parr (initial mass: 21.7 g). The effect on growth performance, tissue fatty acid profiles and disease resistance was monitored after 63 days. At the conclusion of the trial, no significant differences were detected in growth between any of the feeds. Fatty acid composition of whole carcass, dorsal muscle and liver generally reflected that of the diets. Forty percent of the FO could be replaced by SFO before tissue 22:6n-3 was significantly reduced, although other essential and non-essential fatty acids were more susceptible to change. Significant differences were detected in cumulative mortality of Atlantic salmon challenged with Vibrio anguillarum at the trials conclusion, although this was not correlated to the inclusion level of SFO. Despite the changes observed to the tissue fatty acid profile, there was no significant effect on growth suggesting that SFO is a suitable alternative to FO in diets for Atlantic salmon parr when fish meal is also included. (C) 2003 Elsevier Science Inc. All rights reserved.