青稞品种(系)秸秆的品质分析与综合评价  

Quality analysis and comprehensive evaluation of highland barley varieties(lines)straw

作　　者：甘雅文 唐亚伟[1,2] 扎西罗布 刘仁建[1,2] 危文波 达娃[1,2] 德青卓嘎 GAN Ya-wen;TANG Ya-wei;ZHA Xi-luo-bu;LIU Ren-jian;WEI Wen-bo;DA Wa;DE Qing-zhuo-ga

机构地区：[1]省部共建青稞和牦牛种质资源与遗传改良国家重点实验室,西藏拉萨850032 [2]西藏自治区农牧科学院农业研究所,西藏拉萨850032

出　　处：《饲料研究》2023年第6期81-84,共4页Feed Research

基　　金：国家大麦青稞产业技术体系——饲草及副产物综合利用(项目编号:CARS-05-05A-02);青稞种质创制与提质增效关键技术研究——青稞新品种(系)培育(项目编号:XZ202101ZD0004N-03)。

摘　　要：试验旨在探明不同青稞品种(系)秸秆的饲用品质。试验以西藏普遍种植的7份青稞品种(系)为试验材料,通过聚类分析、相关分析和主成分分析,明确7份青稞品种(系)秸秆的饲用价值。结果表明,通过聚类分析青稞秸秆的营养品质可分为三大类,14-3492、QTB25、13-6927聚为一类,藏青3000、藏青2000、QTB13聚为一类,喜拉22单独为一类。试验材料中粗蛋白(CP)含量与粗脂肪(EE)、灰分(Ash)、钙(Ca)含量呈正相关,与磷(P)含量呈显著正相关(P<0.05),与酸性洗涤纤维(ADF)、粗纤维(CF)、中性洗涤纤维(NDF)含量呈负相关。秸秆营养成分综合评价排序为14-3492>QTB25>13-6927>藏青3000>藏青2000>QTB13>喜拉22。研究表明,综合考虑秸秆营养品质的情况下区内种植饲用青稞时可优先选择14-3492、QTB25、13-6927品种(系),有利于提高饲草的转化率,促进畜牧业发展。The study was to prove the quality of straw forage of different highland barley varieties(lines).The experiment used seven highland barley varieties(lines)commonly grown in Tibet as test materials.Through cluster analysis,correlation analysis and principal component analysis,identified the feeding value of highland barley variety(line)straw of seven samples.The results showed that the nutritional quality of highland barley straw could be divided into three categories by cluster analysis,14-3492,QTB25,13-6927 were grouped together,Zang Qing 3000,Zang Qing 2000,QTB13 were grouped together,and Xi La 22 was a separate category.The content of CP was positively correlated with the content of EE,Ash,Ca,P(P<0.05),and ADF,CF and NDF in the test materials.The comprehensive evaluation of the nutrient composition of straw was 14-3492>QTB25>13-6927>Zang qing 3000>Zang qing 2000>QTB13>Xi La 22.The study indicates that 14-3492,QTB25 and 13-6927 can be preferred when planting forage highland barley in region with comprehensive consideration of the nutritional quality of straw,which will help to improve the conversion rate of forage grass and promote the development of animal husbandry.

关 键 词：青稞秸秆 饲用品质 品质分析 

分 类 号：S816[农业科学—饲料科学]