苜草素对产蛋高峰期蛋鸡脂肪肝出血综合征预防作用研究

杨长进; 董晓芳; 佟建明; 高玉鹏

doi:10.3969/j.issn.1006-267x.2015.07.024

动物营养学报 >

2015 , Vol. 27 >Issue 7: 2184 - 2192

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.07.024

研究简报 Short Communications

苜草素对产蛋高峰期蛋鸡脂肪肝出血综合征预防作用研究

杨长进 ,
董晓芳 ,
佟建明 ,
高玉鹏

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1. 西北农林科技大学动物科技学院, 杨凌 712100;
2. 中国农业科学院北京畜牧兽医研究所, 北京 100193

收稿日期: 2015-02-04

网络出版日期: 2015-07-07

基金资助

国家蛋鸡产业技术体系岗位科学家任务(CARS-41-K16);"十二五"国家科技支撑计划课题(2013BAD10B04);中国农业科学院科技创新工程(ASTIP-IAS08)

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Prophylactic Effect of Polysavone on Fatty Liver Hemorrhagic Syndrome in Laying Hens

YANG Changjin ,
DONG Xiaofang ,
TONG Jianming ,
GAO Yupeng

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1. College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China;
2. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China

Received date: 2015-02-04

Online published: 2015-07-07

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摘要

本试验旨在研究苜草素对产蛋高峰期蛋鸡脂肪肝出血综合征(FLHS)的预防作用。选用266日龄京红1号蛋鸡50只,随机等分为5组,每组5个重复,每个重复2只鸡。Ⅰ组饲喂基础饲粮;Ⅱ~Ⅴ组饲喂高能低蛋白质饲粮,并分别在饲粮中添加0、200、600和1 000 mg/kg苜草素。试验期60 d。结果如下:1)与Ⅰ组相比,Ⅱ组1~60 d平均日采食量显著降低(P<0.05),1~30 d料蛋比明显升高(P<0.05),14 d时蛋黄甘油三酯含量显著升高(P<0.05),30 d时即可表现明显的蛋鸡FLHS症状,60 d时FLHS发生率升高。2)与Ⅱ组相比,30 d时Ⅲ组肝脂率显著降低(P<0.05),Ⅳ、Ⅴ组肝脏出血指数、肝脂率显著降低(P<0.05),Ⅲ~Ⅴ组FLHS发生率降低,其中Ⅲ组降低33.3%,Ⅳ、Ⅴ组未发生FLHS;与Ⅱ组相比,60 d时Ⅴ组FLHS发生率降低50%。3)与Ⅱ组相比,1~30 d Ⅳ组料蛋比显著降低(P<0.05),14、28、56 d时Ⅲ~Ⅴ组蛋黄甘油三酯含量显著降低(P<0.05),42 d时Ⅳ组蛋黄甘油三酯含量显著降低(P<0.05),28、56 d时Ⅴ组蛋黄总脂含量显著降低(P<0.05)。结果表明:30 d时,不同剂量苜草素对高能低蛋白质饲粮诱发产蛋高峰期蛋鸡FLHS均具有一定的预防作用;而60 d时,1 000 mg/kg苜草素对高能低蛋白质饲粮诱发产蛋高峰期蛋鸡FLHS发生率降低了50%。

关键词： 苜草素; 蛋鸡; 蛋鸡脂肪肝出血综合征

本文引用格式

杨长进 , 董晓芳 , 佟建明 , 高玉鹏 . 苜草素对产蛋高峰期蛋鸡脂肪肝出血综合征预防作用研究[J]. 动物营养学报, 2015 , 27(7) : 2184 -2192 . DOI: 10.3969/j.issn.1006-267x.2015.07.024

Abstract

This experiment was conducted to investigate prophylactic effects of polysavone (alfalfa extract) on fatty liver hemorrhagic syndrome (FLHS) in laying hens. Fifty Jinghong 1 laying hens aged 266 days were randomly divided into 5 groups, with 5 replicates per group and 2 hens per replicate. Hens in group Ⅰ were fed on a basal diet, while hens in groups Ⅱ, Ⅲ, Ⅳ, Ⅴ were fed on high-energy low-protein diets supplemented with 0, 200, 600, 1 000 mg/kg Ploysavone, respectively. The experiment lasted for 60 days. The results showed as follows: 1) compared with group Ⅰ, the average daily feed intake (ADFI) in group Ⅱ was significantly decreased during 1 to 60 d (P<0.05), while the ratio of feed to egg in group Ⅱ was significantly increased during the first 30 d (P<0.05), as well as the triglyceride (TG) content in yolk in group Ⅱ on day 14 (P<0.05). Furthermore, laying hens in group Ⅱ showed the pathological characteristics of FLHS on day 30 and had higher incidence of FLHS on day 60 than group Ⅰ. 2) Compared with group Ⅱ, on day 30, the liver fat rate in group Ⅲ, the liver hemorrhagic index and liver fat rate in groups Ⅳ and Ⅴ were significantly decreased (P<0.05). In addition, the incidence rate of FLHS in group Ⅲ showed a decrease of 33.3% than group Ⅱ and no FLHS was found in groups Ⅳ and Ⅴ. Moreover, compared with group Ⅱ, the incidence of FLHS in group Ⅴ was decreased by 50.0% on day 60. 3) Compared with group Ⅱ, the ratio of feed to egg in group Ⅳ was significantly decreased during the first 30 d (P<0.05), as well as the TG content in yolk on days 14, 28 and 56 in groups Ⅲ, Ⅳ and Ⅴ (P<0.05). Also, the total lipids content in yolk on days 28 and 56 in group Ⅴ was significantly decreased (P<0.05), and the TG content in yolk on day 42 in group Ⅳ was significantly decreased (P<0.05). In conclusion, on day 30, different doses of Ploysavone can prevent FLHS in laying hens which are fed high-energy low-protein diet. Furthermore, on day 60, the incidence of FLHS in group Ⅴ is decreased by 50.0%.

Key words： polysavone; laying hens; fatty liver hemorrhagic syndrome

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