3种象草茎秆的营养成分及其饲喂竹鼠的价值评定研究
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摘要
为了评定和比较紫色象草、桂闽引象草和热研四号王草3种象草茎秆的营养成分及其对竹鼠的饲喂价值,试验测定了3种象草茎秆的营养成分,选择18只中华竹鼠作为试验动物,随机分为3组,每组6只,分别饲喂紫色象草、桂闽引象草、热研四号王草,以热研四号王草为对照,测定竹鼠的日增重,饲养结束后随机选取2只屠宰并检测肌肉蛋白质、脂肪酸和氨基酸含量。结果表明:紫色象草茎秆粗蛋白含量最高,为2. 64%;饲喂紫色象草和桂闽引象草组中华竹鼠的日增重显著高于热研四号王草(P<0. 05),其中紫色象草组中华竹鼠的日增重最高,达到(8. 48±0. 93) g。3组中华竹鼠肉中蛋白质、亚麻酸、亚油酸和肌苷酸含量差异不显著(P>0. 05),紫色象草组中华竹鼠肉中蛋白质含量最高,为(20. 30±0. 85) g; 3组中华竹鼠肉中含有的17种氨基酸、鲜味氨基酸和必需氨基酸含量均差异不显著(P>0. 05)。说明紫色象草营养成分和饲喂价值较高。
The aim of this study was to evaluate and compare the nutrient content and feeding value to rhizomys among three species of elephantgrass stems. The nutrient component of elephantgrass stem Pennisetum purpureum cv. Red( P. p Red),Pennisetum purpureum cv. Guiminyin( P.p. Guiminyin) and Pennisetum sinese Roxb( P. Roxb) were detected. 18 Zhonghua Rhizomys were selected,and randomly divided into 3 groups and fed by stems of P. p Red,P. p. Guiminyin and P. sinese Roxb respectively,the control was P. sinese Roxb.The daily weight gain of rhizomys were detected and two rhizomys in each group were randomly selected and slaughtered to determine the protein,fatty acid and amino acid content of muscle. The results showd that the content of crude protein in the stem of P. p Red group was the highest( 2. 64%). The daily weight gain of P. p Red group and the P. p. Guiminyin group were significantly higher than that of P. sinese Roxb group( P<0. 05).Among them,the P. p Red group had the highest daily weight gain,reaching( 8. 48±0. 93) g.The differences of protein,linolenic acid,linoleic acid and inosinic acid content of rhizomys muscle were not significant among three groups( P>0. 05).The protein was the highest in P. p Red group,reaching( 20. 30±0. 85) g. There were no significant differences in 17 kinds of amino acid content,umami amino acid content and essential amino acid content of Zhonghua Rhizomys among the three groups( P>0. 05). It indicates that the nutrient content and feeding value of P. p Red is better than others.
The aim of this study was to evaluate and compare the nutrient content and feeding value to rhizomys among three species of elephantgrass stems. The nutrient component of elephantgrass stem Pennisetum purpureum cv. Red( P. p Red),Pennisetum purpureum cv. Guiminyin( P.p. Guiminyin) and Pennisetum sinese Roxb( P. Roxb) were detected. 18 Zhonghua Rhizomys were selected,and randomly divided into 3 groups and fed by stems of P. p Red,P. p. Guiminyin and P. sinese Roxb respectively,the control was P. sinese Roxb.The daily weight gain of rhizomys were detected and two rhizomys in each group were randomly selected and slaughtered to determine the protein,fatty acid and amino acid content of muscle. The results showd that the content of crude protein in the stem of P. p Red group was the highest( 2. 64%). The daily weight gain of P. p Red group and the P. p. Guiminyin group were significantly higher than that of P. sinese Roxb group( P<0. 05).Among them,the P. p Red group had the highest daily weight gain,reaching( 8. 48±0. 93) g.The differences of protein,linolenic acid,linoleic acid and inosinic acid content of rhizomys muscle were not significant among three groups( P>0. 05).The protein was the highest in P. p Red group,reaching( 20. 30±0. 85) g. There were no significant differences in 17 kinds of amino acid content,umami amino acid content and essential amino acid content of Zhonghua Rhizomys among the three groups( P>0. 05). It indicates that the nutrient content and feeding value of P. p Red is better than others.
引文
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[2]易显凤,赖志强,蔡小艳,等.紫色象草的高产栽培与开发利用[J].草业与畜牧,2012(1):22-23.
[3]刘克俊,万火福,张文明,等.竹鼠养殖业现状、前景及发展对策[J].广西畜牧兽医,2017,33(4):180-183.
[4]易显凤,赖志强,姚娜,等.紫色象草在我国南方地区的种植表现[J].南方农业学报,2015,46(3):523-527.
[5]何若钢,张家富,江永强,等.不同日粮营养水平对陆川猪肉品质变化规律的影响研究[J].饲料工业,2013(11):33-37.
[6]何若钢,张文明,覃小荣,等.陆川杂优猪与另外几种品种猪胴体品质和肉质比较[J].上海畜牧兽医通讯,2008(2):25-27.
[7]席鹏彬,蒋宗勇,林映才,等.鸡肉肉质评定方法研究进展[J].动物营养学报,2006,18(S1):347-352.
[8]李林检,蒯立宝,陈毓瑾,等.竹鼠油的提取、理化性质及其在化妆品中的应用[J].应用化工,2016,45(6):1081-1084.
[9]郭蓉,王安明,罗轶.竹鼠肌肉营养成分分析[J].黑龙江畜牧兽医,2015(02上):191-193.
[10]易显凤,周恒,史静,等.紫色象草饲喂山羊效果分析[J].饲料研究,2017(6):48-52.
[11]姚娜,易显凤,赖志强,等.紫色象草对肉鹅生长性能及血清生化指标的影响[J].南方农业学报,2016,47(12):2163-2168.