亚麻籽对蛋鸭产蛋性能、脂质代谢及肝脏SCD1基因表达的影响

发布时间：2018-03-28 19:32

本文选题：亚麻籽　切入点：生产性能　出处：《中国粮油学报》2017年05期

【摘要】：本试验旨在研究亚麻籽对蛋鸭产蛋性能、血清脂质代谢以及肝脏硬酯酰辅酶A去饱和酶(SCD1)基因mRNA表达的影响。选择480只50日龄绍兴麻鸭,随机分5组,基础饲粮组、含1.5%法国膨化亚麻籽组(试验一组)、含3%法国膨化亚麻籽组(试验二组)、含3.0%国产膨化亚麻籽组(试验三组)、含6.4%国产压榨亚麻饼组(试验四纽)。测定生产性能、鸭蛋品质及其多不饱和脂肪酸(PUFA)、脂质代谢以及肝脏SCD1基因mRNA表达水平。结果表明:试验三组蛋质量显著高于对照组和试验一组(P0.05),试验四组组产蛋率下降。试验一组、试验二组和试验三组能显著降低血清甘油三酯(P0.05);试验二组蛋黄DHA和ω-3 PUFA含量明显高于试验一组和试验四组(P0.05)。试验一组、试验二组和试验三组都能显著降低SCD1基因表达,试验一表达最低(P0.01)。由此可见,添加3.0%的国产膨化亚麻籽显著增加蛋质量,而6.4%的国产压榨亚麻饼显著降低产蛋率;膨化亚麻籽有利于调节脂质代谢和PUFA沉积,抑制肝脏SCD1基因转录。
[Abstract]:The purpose of this study was to study the effects of flaxseed on egg laying performance, serum lipid metabolism and mRNA expression of hepatic desaturase A (SCD1) gene in laying ducks. 480 Shaoxing ducks of 50 days old were randomly divided into 5 groups. 1. 5% French extruded flaxseed group (test 1), 3% French expanded flaxseed group (test 2), 3. 0% homemade extruded flax seed group (test 3), 6. 4% domestic press flax cake group (test 4). The results showed that the egg quality of the three groups was significantly higher than that of the control group and the control group, and the egg production rate of the four groups was decreased. The contents of DHA and 蠅 -3 PUFA in yolk of test 2 group were significantly higher than that of test 1 group and 4 group. The expression of SCD1 gene in test 1 group, experiment 2 group and trial 3 group were significantly decreased. In experiment 1, the lowest expression was P0.01. it can be seen that adding 3.0% of domestic extruded flaxseed significantly increased egg quality, while 6.4% of homemade pressed flax cake significantly reduced the egg production rate, and expanded flaxseed was beneficial to regulate lipid metabolism and PUFA deposition. Inhibition of liver SCD1 gene transcription.
【作者单位】：华中农业大学动物科学技术学院;武汉市畜牧兽医科学研究所;
【基金】：武汉市科技局攻关项目(201302070507350-5) 动物营养学国家重点实验室开放项目(2004DA125184F1417)
【分类号】：S834.5

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