Effect of alternative lipid sources on long-term growth performance and quality of Atlantic salmon (Salmo salar L.)
Effect of alternative lipid sources on long-term growth performance and quality of Atlantic salmon (Salmo salar L.)
复制标题
DOI：
10.1046/j.1355-557x.2001.00025.x
复制
发表时间：
2001-12-01
影响因子：
2
通讯作者：
Tveit, K
中科院分区：
文献类型：
--
作者：
Rosenlund, G;Obach, A;Tveit, K
本研究调查了用其他类型的油取代高能三文鱼饲料中至少50%的鱼油的影响。大西洋鲑鱼(Salmo salar L.)在海水中饲喂6种不同脂肪来源的日粮，为期12个月。实验用油是鱼油和以下一种或两种油的组合：菜籽油、大豆油、亚麻籽油、棕榈油或禽油。鱼油占油混合物的40%~50%。在12个月的试验中，鱼的平均重量从120克增长到2000克。不同脂肪来源对仔猪的生长、存活率、体尺性状和鱼片品质均无显著影响，但剪尾鱼片的脂肪含量差异不显著。主要的饲料效应表现在肌肉脂肪酸组成上，这清楚地反映了饲料中的脂肪酸组成，这些结果表明，在大西洋鲑鱼在海水中成长的阶段，用其他脂肪来源替代50%-60%鱼油的高能饲料可以产生与含有100%鱼油的饲料相似的结果。鱼片脂肪酸组成对加工和感官特性的重要性需要进一步评估。
The present study investigates the impact of replacing at least 50% of the fish oil in high-energy salmon diets with other types of oils. Triplicate groups of Atlantic salmon (Salmo salar L.) were fed six diets differing only in dietary lipid source for 12 months in sea water. The experimental oils were combinations of fish oil and one or two of the following oils: rapeseed, soybean, linseed, palm or poultry oil. Fish oil constituted 40%-50% of the oil mixtures. The fish grew from an average weight of 120 g to 2000 g during the 12 month trial. Except for minor differences in the lipid concentration of trimmed fillets, no significant effects of dietary lipid source were found on growth, survival, body traits or fillet quality. The main dietary effect was observed in the muscle fatty acid composition, which clearly reflected that of the diets, These results show that high-energy diets where 50%-60% of the fish oil is replaced by other lipid sources can produce similar results to diets containing 100% fish oil during the grow out phase of Atlantic salmon in sea. The importance of fillet fatty acid composition on processing and sensory characteristics requires further evaluations.