Cherian G, Sim J S
Department of Animal Sciences, Oregon State University, Corvallis, Oregon, 97331-6702, USA.
Poult Sci. 2003 Apr;82(4):681-6. doi: 10.1093/ps/82.4.681.
The effects of maternal and starter diet polyunsaturated fatty acid (PUFA) composition on the tocopherol (TOC) status of posthatch chicks were investigated. Fertile eggs enriched with long chain n-3, 18:3 n-3 or 18:2 n-6 PUFA were incubated. The eggs were collected from hens fed diets containing 3.5% menhaden oil (MO), linseed oil (LO), or sunflower oil (SO) and a vitamin E mix containing 400 microg/g total TOC. Posthatch chicks from MO, LO, or SO were fed starter diets containing 3.5% MO, LO, or SO along with vitamin E mix containing 48 microg/g total TOC. Tissues (liver, blood, brain) were collected on d 0 (day of hatch), 7, 14, and 21 posthatch. On d 0, MO chicks had the lowest liver and plasma TOC (P < 0.05). A rapid depletion of liver and plasma TOC was observed on d 7 and 14 posthatch (P < 0.001) and was lower in MO chicks (P < 0.05) than LO. When compared with d 0, a 98% decrease of tocopherol on d 7 was observed for chicks from all treatments. No changes due to age or diet PUFA was observed in the brain TOC status. Data showed that maternal and starter diet PUFA could alter the TOC status of chicks in early life.
研究了母体和起始日粮中多不饱和脂肪酸（PUFA）组成对孵化后雏鸡生育酚（TOC）状态的影响。将富含长链n-3、18:3 n-3或18:2 n-6多不饱和脂肪酸的种蛋进行孵化。这些种蛋取自饲喂含3.5%鲱鱼油（MO）、亚麻籽油（LO）或向日葵油（SO）日粮以及含400微克/克总生育酚的维生素E混合物的母鸡。来自MO、LO或SO组的孵化后雏鸡饲喂含3.5% MO、LO或SO的起始日粮以及含48微克/克总生育酚的维生素E混合物。在孵化后第0天（出壳日）、7天、14天和21天采集组织（肝脏、血液、大脑）。在第0天，MO组雏鸡的肝脏和血浆生育酚含量最低（P<0.05）。在孵化后第7天和14天观察到肝脏和血浆生育酚迅速减少（P<0.001），且MO组雏鸡低于LO组（P<0.05）。与第0天相比，所有处理组的雏鸡在第7天时生育酚含量下降了98%。在大脑生育酚状态方面未观察到因年龄或日粮多不饱和脂肪酸引起的变化。数据表明，母体和起始日粮中的多不饱和脂肪酸可改变雏鸡早期的生育酚状态。
