Omega-3、Omega-6、Omega-9 有什么区别？
Ingrid Vaugeois于2020年1月14日发布
我们经常谈论Omega脂肪酸及其对宠物健康的益处，但是我们真的知道它们之间的区别和它们的功效吗？以下是一些相关信息，可以帮助你为您的宠物购买食品或保健品时做出明智的选择。
Omega-3
最有名的Omega 脂肪酸当然是Omega-3了。Omega-3可以来自蔬菜（大麻油、亚麻籽油等）或动物来源（海豹油、鲑鱼油、磷虾油等）。当Omega-3来自蔬菜时，它被称为ALA（α-亚麻酸）。这种酸必须在你的动物的消化系统中转化，才能转化为鱼油中的脂肪酸EPA和DHA。由于ALA的转化率很低，被认为是Omega-3的“弱”来源。从鱼油中提取的Omega-3和海豹油的生物利用率和回复转化率比ALA更好。海豹油的Omega-3能更好地被宠物吸收，因为海豹的哺乳动物细胞结构能在宠物体内立即识别。因此，海豹油的分子结构可以更好地同化和被吸收。此外，除了EPA和DHA外，海豹油还含有第三种脂肪酸（DPA），在动物消化过程中， DPA会转化为EPA/DHA，进而会增强Omega-3的功效。
Omega-3的功效有什么？
- 减少脱毛
- 改善皮肤和皮毛质量
- 减少过敏和炎症
- 有助于关节健康
- 改善心脏健康
- 增强免疫力
- 有助于成长、繁殖和大脑发育
Omega-6
对于您的宠物来说，理想的Omega-6与Omega-3的比例应该是4:1。在日常购买到的宠物食品中，无论您给您的宠物生的或干的宠物食品，Omega-6含量过高。有些公司的宠物食品，其比例甚至达到20:1。这就是为什么有必要在宠物的饮食中添加Omega-3，而不是添加Omega-6。给宠物吃太多Omega-6会导致炎症或心脏病等问题。了解更多请点击：为什么我的宠物饮食中含有过多的欧米伽-6呢？
Omega-9
Omega-9主要存在于植物油和动物脂肪中。它不被认为是一种必需的脂肪酸，因为您的宠物能够从其体内的不饱和脂肪中生成这种脂肪酸，并且不需要特定的食物或补充剂来补充它。
总之，您应该优先考虑给您的宠物补充Omega-3，以恢复您宠物体内Omega-3与Omega-6的最优比例，也没必要特意补充Omega-9。
参考文献：
Elizabeth Koutsos, Stacey Gelis, Michael Scott Echols, in Current Therapy in Avian Medicine and Surgery, Advancements in nutrition and nutritional therapy, 2016.
Mahmoud Alagawany, Shaaban S. Elnesr, Mayada R. Farag, Mohamed E. Abd El-Hack, Asmaa F. Khafaga, Ayman E. Taha, Ruchi Tiwari, Mohd. Iqbal Yatoo, Prakash Bhatt, Sandip Kumar Khurana, Kuldeep Dhama
Animals (Basel),Omega-3 and Omega-6 Fatty Acids in Poultry Nutrition: Effect on Production Performance and Health, 2019 Aug; 9(8): 573. Published online 2019 Aug 18.
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