呼伦贝尔草原短尾羊股二头肌和 背最长肌常规营养素特征

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Abstract：Atotalof214 samplesof the biceps femorisandlongissmusdorsi musclesofHulunbuirgrasslandshort-tailed sheepas wellassheepandgoatsfromtheoterregionsofOrdos，Alxa，NingxiaandYulinwerecollectedfordetermiationof proximatenutrients（mostureashfatandprotein）nddescriptivestatisticsandcusteraalysisreconducted.Resultsowdthe moisture，protein，fat and ash contents in the muscles of grassand short-tailed sheep were （75.86±2.96）% ， （20.88±2.90）% （2.91±2.26）% ，and （1.65±0.78）% ，respectively.The moisture content was lower than the limit （≤78%） stipulatedbythe Chinese national standardPermited levelofmoistureinmeatoflivestockand poultry（GB18394-2O20）.Themusclesof sheepinthe Hui Sumu wetlandandthe Yimin Sumu grassland-forestecotone showed significantly higher moisturecontents （P<0.05 and P<0.01 ，respectively） but lower intermuscular fat contents （P<0.01 ）thandidthoseinEast Sumuof the Sini River. Moisture content was significantly higher （P<0.01 ）and ash and protein contents were significantly lower （P<0.01） ）inthemuscles oflambsthanadult sheep （P<0.01 ）.Themuscles of grassland short-tailed sheep showed no significant differencein protein contentcomparedwithother breedsin Hulunbuir （P>0.05 ，butsignificantlyhigher

收稿日期：2024-12-31

基金项目：内蒙古自治区教育厅一流学科科研专项（YLXKZX-NND-015）；鄂温克自治区农牧和科技局项目（鄂财字[2022]42号）

第一作者简介：苏贞（2000—）（ORCID：0009-0003-1365-6420），女，硕士研究生，研究方向为营养与食品安全。（剩余13708字）