葡萄籽提取物对蛋鸡生产性能和蛋黄胆固醇含量的影响  

Grape Seed Extract:Effects on Performance and Yolk Cholesterol Content in Laying Hens

作　　者：胡如久[1] 王影[1] 王潇[1] 杨婷[1] 陈思[1] 杨小军[1] 姚军虎[1] 

机构地区：[1]西北农林科技大学动物科技学院,杨凌712100

出　　处：《动物营养学报》2013年第9期2074-2081,共8页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：陕西省科技统筹创新工程(2011KTDZ02-01-01;2011KTCQ02-02);国家科技支撑计划(2011BAD26B03-3)

摘　　要：本试验旨在研究饲粮中添加葡萄籽提取物(GSE)对蛋鸡生产性能和蛋黄胆固醇含量的影响。选用450羽40周龄罗曼白蛋鸡,随机分为6个组:空白对照组,饲喂基础饲粮;阳性对照组,在基础饲粮中添加125 mg/kg的铜(Cu);其他4组在基础饲粮中分别添加100、200、400和800 mg/kg的GSE。每组5个重复,每个重复15羽鸡。预试期7 d,正试期42 d。结果表明:1)与空白对照组相比,饲粮中添加800 mg/kg GSE显著降低了平均日采食量(P<0.05),但对平均蛋重无显著影响(P>0.05),添加100 mg/kg GSE极显著提高了产蛋率(P<0.01)、显著降低了料蛋比(P<0.05);添加125 mg/kg Cu显著降低了产蛋率(P<0.05),显著增加了料蛋比(P<0.05)。2)与空白对照组相比,饲粮中添加400、800 mg/kg GSE显著增加了蛋壳厚度(P<0.05),添加800 mg/kg GSE显著增加了蛋白高度(P<0.05),但添加GSE对蛋壳强度、蛋黄颜色和哈夫单位均无显著影响(P>0.05)。3)与空白对照组相比,GSE各组和Cu 125 mg/kg组的蛋黄胆固醇含量均显著或极显著降低(P<0.05或P<0.01),其中Cu 125 mg/kg、GSE 100和200 mg/kg组间无显著差异(P>0.05)。由此可知,与饲粮中添加高Cu相比,添加100 mg/kg GSE不仅显著降低了鸡蛋中胆固醇含量,同时显著提高了产蛋率。The current study was conducted to evaluate the effects of grape seed extract （GSE） on performance and yolk cholesterol content in laying hens. A total of 450 ＇Lohmann-White＇ laying hens aged 40 weeks were assigned to 6 groups in a completely randomized design. Each group consisted of five replicates with fifteen layers per replicate. The experimental diets were a blank control diet containing no GSE, a positive control diet containing copper sulfate （125 mg/kg Cu） and the diets containing 100, 200, 400 or 800 mg/kg GSE. The preliminary test lasted for 7 days and the experiment lasted for 42 days. The results showed as follows： 1） adding 800 mg/kg GSE significantly decreased average daily feed intake （P〈0.05）, but did not affect average egg weight （P〉0.05）, and adding 100 mg/kg GSE significantly improved laying rate （P〈0.01） and reduced feed/egg ratio （P〈0.05）, while adding 125 mg/kg Cu significantly decreased laying rate and improved feed/egg ratio （P〈0.05）. 2） Adding 400 and 800 mg/kg GSE significantly increased eggshell thickness （P〈0.05）, and adding 800 mg/kg GSE significantly increased albumen height, but did not affect eggshell height, Haugh unit and yolk color （P〉0.05）. 3） Yolk cholesterol content in all GSE groups and 125 mg/kg Cu group was significantly lower than that in the blank control group （P〈0.01）, but there was no significant difference among 125 mg/kg Cu group, 100 mg/kg GSE group and 200 mg/kg GSE group （P〉0.05）. Based on the results of the experiment, it is concluded that adding GSE in the diet for laying henrs at 100 mg/kg level is better than 125 mg/kg Cu for significantly reducing yolk cholesterol content and significantly improving laying rate.

关 键 词：葡萄籽提取物 产蛋鸡 生产性能 蛋品质 胆固醇 

分 类 号：S816.7[农业科学—饲料科学]