山药对环江香猪营养物质消化代谢的影响  

Effects of Chinese Yam on Nutrient Metabolism in Huanjiang Mini-piglets

作　　者：周笑犁[1,2] 刘星达[1] 孔祥峰[1,3] 印遇龙[1,2] 

机构地区：[1]中国科学院亚热带农业生态研究所,中国科学院亚热带农业生态过程重点实验室湖南省畜禽健康养殖工程技术研究中心,长沙410125 [2]南昌大学生命科学与食品工程学院,食品科学与技术国家重点实验室,南昌330047 [3]中国科学院环江喀斯特农业生态试验站,环江547100

出　　处：《天然产物研究与开发》2012年第5期672-676,共5页Natural Product Research and Development

基　　金：国家星火计划项目(2007EA790004);中国科学院亚热带农业生态研究所青年人才领域前沿项目(ISACX-LYQY-QN-0703)

摘　　要：为了探讨山药对环江香猪营养物质消化代谢的影响,本研究选用体重为4.55±0.63 kg的环江香猪10头,随机分为2组,每组5头,单笼饲养,分别饲喂山药日粮和基础日粮,试验期为7 d。试验开始和结束时分别称取试验猪体重,记录日采食量;试验第5～7 d收集粪样,用TiO2指示剂法测定常规营养成分的消化率;试验第7 d采血分离血浆,分别用全自动生化分析仪和氨基酸分析仪测定生化指标和氨基酸浓度。结果表明,与对照组相比,试验组平均日增重、粗蛋白、粗脂肪和干物质消化率均有所提高(P>0.05);血浆尿素氮和血氨浓度均显著降低、总蛋白浓度显著升高(P<0.05),白蛋白和葡萄糖浓度及碱性磷酸酶活性均有所升高(P>0.05);血浆丙氨酸、甘氨酸、天冬氨酸、谷氨酸、苏氨酸和总氨基酸浓度均显著升高(P<0.05)。上述结果提示,山药可改善环江香猪的消化代谢功能,这为开发环江香猪的绿色环保饲料提供了一定的科学依据。This study was conducted to determine the effects of Chinese yam （CY） on nutrient digestibility and metabo- lism. Ten Huanjiang mini-piglets （4.55 ± 0.63 kg） were used and randomly assigned into two groups （five replicates per group）. The piglets were fed with a basal diet or CY diet for 7 days. Initial body weight （ BW）, daily feed intake and final BW were recorded;fecal samples were collected from Day 5 to Day 7 for determining the routine nutrient digestibili- ty by TiO2 indicator;blood samples were collected at Day 7 for analysis of biochemical parameters and concentrations of amino acids by automatic biochemical analyzer and amino acid analyzer, respectively. Results showed that the average daily gain and the apparent digestibility of crude protein, crude fat and dry matter, as well as the concentrations of GLU, ALB and activity of ALP of the experimental group increased （P 〉 0.05 ）, while the concentrations of UN and AMM de- creased （P 〈 0.05 ）, when compared with the control group. The concentrations of rip, Ala, Gly, Asp, Glu, Thr and total amino acids in piglets of the experimental group were higher （P 〈 O. 05） than that of the control group. The results sug- gested that the CY diet could improve digestive and metabolic function of piglets, which provide some scientific basis for the development of green feed in Huanjiang mini-piglets.

关 键 词：山药 环江香猪 消化代谢 生化参数 氨基酸 

分 类 号：R284.2[医药卫生—中药学]