复合酸化剂对黄羽肉鸡生长性能及消化道pH值的影响  

Effects of Compound Acidifiers on Growth Performance and Gastrointestinal pH Value in Yellow-feathered Broilers

作　　者：何国飞[1] 卢旭霞[1] 陈报伟[1] 许毅俊[1] 林志明[1] 周佳[1] 肖志科[1] 黄晓亮[1] 黄冠庆[1] 

机构地区：[1]广东海洋大学农学院,广东湛江524088

出　　处：《中国农学通报》2013年第20期7-11,共5页Chinese Agricultural Science Bulletin

基　　金：广东海洋大学大学生创新训练项目"复合酸化剂对黄羽肉鸡生产性能及消化道内环境的影响"(CXXL12033)

摘　　要：为了研究复合酸化剂对黄羽肉鸡生长性能及消化道pH值的影响。试验选择1日龄黄羽肉鸡160只,随机分成4个处理组,每个处理组4个重复,每个重复10只鸡,各处理组分别在基础日粮中添加0.0%、0.2%、0.5%、0.8%的由乳酸、柠檬酸和富马酸组成的复合酸化剂的日粮,试验期56天。结果表明:日粮中添加不同水平复合酸化剂能降低肌胃、腺胃、十二指肠、空肠和盲肠的pH值及料重比,提高平均日增重,添加量为0.8%时显著(P<0.05)降低42日龄十二指肠和盲肠pH值,并显著(P<0.05)提高1～56日龄的平均日增重;添加量为0.5%时显著(P<0.05)降低28～42日龄料重比。说明复合酸化剂能改善黄羽肉鸡消化道pH值和生长性能,最佳添加量为0.5%。The experiment was conducted to study the effects of compound acidifiers on growth performance and gastrointestinal pH value in yellow-feathered broilers. One hundred and sixty one-day-old yellow-feathered broilers were randomly allocated to 4 experimental groups with 4 replicates of 10 broilers each. All treatment groups were fed dietary acidifiers 0% , 0.2% , 0.5% , 0.8% in the basal diet composed of lactic acid, citric acid and fumaric acid. The trial lasted for 56 days. The results showed that pH value of glandular stomach, gizzard, duodenum, jejunum, cecum and feed to gain ratio were decreased and average daily gain was increased by different levels of compound acidifiers. The pH value of duodenum and cecum at 42-day-old were significantly decreased （P0.05） and average daily gain at 1-56 days was significantly increased （P0.05） by added 0.8% compound acidifiers and feed to gain ratio at 28-42 days was significantly decreased （P0.05） by added 0.5% compound acidifiers. It indicated that compound acidifiers could improve gastrointestinal pH value and growth performance in yellow-feathered broilers and the optimal supplementation of compound acidifier was 0.5 % .

关 键 词：复合酸化剂 黄羽肉鸡 生长性能 PH值 

分 类 号：S816.7[农业科学—饲料科学]