Key Laboratory for Molecular Animal Nutrition of Ministry of Education, Feed Science Institute, College of Animal Science, Zhejiang University (Zijingang Campus), Hangzhou, China.
Anim Sci J. 2021 Jan-Dec;92(1):e13616. doi: 10.1111/asj.13616.
The aim of this study was to explore the effects of dietary arachidonic acid on serum fatty acid profile, hepatic antioxidant capacity, and lipid metabolism in pigeon squabs by supplementing arachidonic acid in their parental diets. A completely randomized design was conducted consisting of control group, 0.05% dietary arachidonic acid supplementation group, 0.1% dietary arachidonic acid supplementation group, and 0.2% dietary arachidonic acid supplementation group. Six randomly selected squabs from each group were sampled on Day 21 post-hatch. Results indicated that moderate level (0.05%) of arachidonic acid in parental diets for pigeon squabs improved lipid metabolism via regulation on serum lipid profile and fatty acid composition and tended to reduce hepatic lipid accumulation in the premise of negligible damage to antioxidant status. Unfortunately, excessive parental supplementation of dietary arachidonic acid might be harmful to squab health. The regulatory effects of arachidonic acid were sensitive to the arachidonic acid doses. In conclusion, parental dietary arachidonic acid at 0.05% could be beneficial for squabs to maintain health as reflective aspects in ameliorative serum lipid profile, fatty acid composition, and reduced hepatic lipid accumulation.
本研究旨在通过在亲代日粮中添加花生四烯酸来探讨日粮中添加花生四烯酸对乳鸽血清脂肪酸谱、肝抗氧化能力和脂代谢的影响。采用完全随机设计，设对照组、0.05%日粮花生四烯酸添加组、0.1%日粮花生四烯酸添加组和 0.2%日粮花生四烯酸添加组，每组 6 只乳鸽。孵化后第 21 天随机抽取每组 6 只乳鸽。结果表明，日粮中适量（0.05%）的花生四烯酸可通过调节血清脂质谱和脂肪酸组成来改善脂质代谢，并在抗氧化状态不受显著损害的前提下，降低肝脂质积累。然而，日粮中添加过量的花生四烯酸可能对乳鸽的健康有害。花生四烯酸的调节作用对花生四烯酸的剂量敏感。总之，亲代日粮中添加 0.05%的花生四烯酸可能有利于乳鸽保持健康，体现在改善血清脂质谱、脂肪酸组成和减少肝脂质积累等方面。
