不同饲养方式对北京油鸡肌肉风味物质的影响  

Effect of Different Housing Systems on Meat Flavor Compounds of Beijing-You Chicken

作　　者：孙月娇 田河山[1] 赵桂苹[2] 郑麦青[2] 王博[1] 文杰[2] 

机构地区：[1]中国农业科学院农业质量标准与检测技术研究所,农业部农产品质量安全重点实验室,北京100081 [2]中国农业科学院北京畜牧兽医研究所,农业部畜禽遗传资源与利用重点开放实验室,北京100193

出　　处：《中国畜牧兽医》2014年第9期89-94,共6页China Animal Husbandry & Veterinary Medicine

基　　金："十二五"国家科技支撑计划(2012BAD39B04-3);动物营养学国家重点实验室开放课题(2004DA125184O0902)

摘　　要：试验旨在研究不同饲养方式对北京油鸡肌肉风味物质的影响。选择300只49日龄的健康母鸡,随机分为2个处理:网上笼养和半舍饲,每个处理5个重复,每个重复30只。试验至91日龄时结束。结果表明,与笼养组相比,半舍饲组肌肉脂肪酸中棕榈酸(C16∶0)、棕榈烯酸(C16∶1)、油酸(C18∶1n9c)、亚油酸(C18∶2n9c)、二十二烷酸(C22∶0)、饱和脂肪酸和不饱和脂肪酸含量均显著提高(P<0.05),顺-10-十五碳烯酸(C15∶1)、硬脂酸(C18∶0)、反亚油酸(C18∶2n9t)和花生四烯酸(C20∶4n6)含量也有升高趋势,但差异均不显著(P>0.05);半舍饲组肌肉肌苷酸含量显著高于笼养组(P<0.05);挥发性风味物质在2种饲养方式下呈现不同的百分比例,半舍饲组的醇类和酮类相对含量较高,而相对于笼养组,醛类相对含量有所降低,这是导致气味呈现差异的原因。因此,不同饲养方式对北京油鸡肌肉风味物质的组成和含量存在影响,半舍饲饲养方式能提高北京油鸡的肌肉品质,改善肉质风味。The present study was conducted to determine the effect of different housing systems on meat flavor compound of Beijing You chicken. A total of three hundred 49 day old healthy Beijing-You chicken were randomly assigned to two groups （housing systems of cage-rearing and floor-rearing with outdoor access）. Each group had five replicates with thirty broilers per replicate. The experiment ended at 91 days of age. The results showed that compared with the cage rearing group, meat fatty acid of the chicken in floor-rearing with outdoor access including C16 ： 0,C16 ： 1,C18 ： ln9c,C18 ： 2n9c,C22 ： 0,SFA and UFA contents were significantly improved （P〈0.05）,C15 ： 1 ,C18 ： 0,C18 ： 2n9t and C20 ： 4n6 contents had a tendency to increase, but no significant difference was found between this two groups （P2〉0.05）. The IMP content of the chicken in floor- rearing with outdoor access was significantly higher than that in the cage-rearing group （P〈0.05）. Volatile flavor compounds in both housing systems present different percentage rate. The percentage of ketones and alcohols of the chicken in floor-rearing with outdoor access was higher,relative to the cage-rearing group, the aldehydes content was reduced. This was the reason of odor rendering differences. The results suggested that different housing system affected the composition and relative contents of flavor compounds,the chicken in floor-rearing with outdoor access could improve meat quality and flavor of BeijinaYou chicken.

关 键 词：饲养方式 北京油鸡 风味物质 

分 类 号：S831[农业科学—畜牧学]