裂殖壶菌粉对蛋鸡生产性能、蛋品质、血清生化指标和蛋黄二十二碳六烯酸含量的影响

陈秀丽; 岳洪源; 李连彬; 宋丹; 曹社会; 武书庚

doi:10.3969/j.issn.1006-267x.2014.03.020

动物营养学报 >

2014 , Vol. 26 >Issue 3: 701 - 709

DOI: https://doi.org/10.3969/j.issn.1006-267x.2014.03.020

饲料营养 Feed Science and Technology

裂殖壶菌粉对蛋鸡生产性能、蛋品质、血清生化指标和蛋黄二十二碳六烯酸含量的影响

陈秀丽 ,
岳洪源 ,
李连彬 ,
宋丹 ,
曹社会 ,
武书庚

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1. 西北农林科技大学动物科技学院, 杨凌 712100;
2. 中国农业科学院饲料研究所, 生物饲料开发国家工程研究中心, 北京 100081

收稿日期: 2013-10-17

网络出版日期: 2014-03-04

基金资助

现代农业产业技术体系（CARS-41-K13）；现代农业产业技术体系北京市家禽创新团队（CARS-PSTP）

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Effects of Schizochytrium Powder on Performance, Egg Quality, Serum Biochemical Indices and Yolk Ducosahexenoic Acid Content of Laying Hens

CHEN Xiuli ,
YUE Hongyuan ,
LI Lianbin ,
SONG Dan ,
CAO Shehui ,
WU Shugeng

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1. College of Animal Science and Technology, Northwest A & F University, Yangling 712100, China;
2. National Engineering Research Center of Biological Feed, Feed Research Institute of Chinese Academy of Agricultural Sciences, Beijing 100081, China

Received date: 2013-10-17

Online published: 2014-03-04

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摘要

本试验旨在研究饲粮添加不同水平裂殖壶菌（SL）粉对蛋鸡生产性能、蛋品质、血清生化指标和蛋黄二十二碳六烯酸（DHA）含量的影响。选用288只29周龄海兰褐商品蛋鸡，随机分为4个组，每组6个重复，每个重复12只。各组分别饲喂基础饲粮中添加0（对照）、1%、2%和3%SL粉的试验饲粮，试验期6周。结果表明：1）饲粮SL粉添加水平对蛋鸡产蛋率、平均蛋重和料蛋比影响不显著（P>0.05）。2）饲粮SL粉添加水平对鸡蛋蛋形指数、蛋壳厚度、蛋壳强度、哈氏单位、蛋白高度影响不显著（P>0.05），1%SL粉组蛋黄颜色显著高于其他组（P<0.05）。3）1%、2%SL粉组血清总胆固醇（TC）、甘油三酯（TG）和低密度脂蛋白胆固醇（LDL-C）含量显著低于对照组（P<0.05）。4）饲粮SL粉添加水平线性增加了鸡蛋中ω-3多不饱和脂肪酸和DHA含量，降低了ω-6/ω-3，但SL粉添加水平超过2%时，蛋黄中DHA含量不会继续增加，DHA在鸡蛋中的富集15 d即可饱和。结果提示，本试验条件下在蛋鸡饲粮中添加2%SL粉可提高蛋黄DHA含量，并且对蛋鸡生产性能和蛋品质无不良影响。

关键词： 裂殖壶菌; 蛋鸡; 生产性能; DHA

本文引用格式

陈秀丽 , 岳洪源 , 李连彬 , 宋丹 , 曹社会 , 武书庚 . 裂殖壶菌粉对蛋鸡生产性能、蛋品质、血清生化指标和蛋黄二十二碳六烯酸含量的影响[J]. 动物营养学报, 2014 , 26(3) : 701 -709 . DOI: 10.3969/j.issn.1006-267x.2014.03.020

Abstract

This experiment was conducted to investigate the effects of diet supplemented with different levels of Schizochytrium (SL) powder on performance, egg quality, serum biochemical indices and yolk ducosahexenoic acid (DHA) content of laying hens. Two hundred and eighty eight Hy-Line brown laying hens aged 29 weeks were randomly divided into 4 groups with 6 replicates per group and 12 hens per replicate. Hens in the four groups were fed the basal diets supplemented with 0 (control), 1%, 2% and 3% SL powder, respectively. The experiment lasted for 6 weeks. The results showed as follows: 1) dietary SL powder supplemental level had no significant effects on laying rate, average egg weight and the ratio of feed to egg (P>0.05). 2) Dietary SL powder supplemental level had no significant effects on egg-shape index, eggshell thickness, eggshell strength, Haugh unit and albumen height (P>0.05), the yolk color in 1% SL powder group was significantly higher than that in other groups (P<0.05). 3) The contents of total cholesterol, triglyeride and low density lipoprotein-cholesterol in serum in 1% and 2% SL powder groups were significantly lower than those in control group (P<0.05). 4) The contents of ω-3 polyunsaturated fatty acid and DHA in egg yolk were linear improved with the dietary SL powder supplemental level increasing, and reduced the ratio of ω-6 to ω-3. However, the yolk DHA content did not continue to increase when SL powder supplemental level exceed 2%, and DHA enrichment in eggs could be saturated in 15 days. The results suggest that under this experimental condition, dietary supplementation of 2% SL powder can improve the yolk DHA content of hens, and have no negative effect on performance and egg quality.

Key words： Schizochytrium; laying hens; performance; DHA

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