Department of Animal Science, The Pennsylvania State University, University Park, PA 16802, USA.
Department of Animal Science, The Pennsylvania State University, University Park, PA 16802, USA; Permanent address: Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, University of Sadat City, Egypt.
Prostaglandins Leukot Essent Fatty Acids. 2021 Sep;172:102322. doi: 10.1016/j.plefa.2021.102322. Epub 2021 Aug 8.
We previously reported that when laying hens were fed diets supplemented with oils enriched in α-linolenic acid (ALA) and oleic acid (OA), the deposition of n-3 PUFA in egg yolk was attenuated as compared to feeding hens a diet supplemented with the ALA-rich oil alone. The present work extends those findings to another n-3 PUFA-rich oil (stearidonic acid [SDA]-enriched soybean oil) and two other high-OA oils, suggesting that the effect is not plant oil-specific. Feeding hens a supplemental linoleic acid (LA)-rich oil plus an oil rich in either SDA or ALA also attenuated egg yolk ALA and SDA contents (Experiment 1), or egg yolk and liver ALA contents (Experiment 2), respectively, as compared to feeding the SDA- or ALA-rich oils alone. Future work should focus on the lack of neutrality of OA and LA in relation to n-3 PUFA nutrition.
我们之前曾报道，与单独给母鸡喂食富含α-亚麻酸（ALA）的油饲料相比，给母鸡喂食富含α-亚麻酸和油酸（OA）的油饲料时，蛋黄中 n-3PUFA 的沉积减少。本研究将这些发现扩展到另一种富含 n-3PUFA 的油（富含 stearidonic 酸[SDA]的豆油）和两种其他高 OA 油，表明这种效果不是特定于植物油的。给母鸡喂食富含亚油酸（LA）的补充油和富含 SDA 或 ALA 的油，与单独喂食 SDA 或 ALA 丰富的油相比，分别减弱了蛋黄中的 ALA 和 SDA 含量（实验 1）或蛋黄和肝脏中的 ALA 含量（实验 2）。未来的工作应侧重于 OA 和 LA 在 n-3PUFA 营养方面缺乏中立性。
