CAJ | 학술논문

分析研究不同杂交肉牛背最长肌肉氨基酸含量.试验选择年龄、体质量和体况接近的安格斯、利木赞、西门塔尔牛与本地黄牛的杂交公牛18头;按不同杂交牛种分为1组(AG×L)、2组(LM×L)、3组(SM×L),每组为6头,各组随机选择3头屠宰,取其背最长肌为实验材料.结果表明:1)不同杂交肉牛粗蛋白(CP)及总氨基酸(TAA)、必需氨基酸(EAA)和风味系游离氨基酸(FAA)含量为试验1组>2组>3组;其氨基酸组成即EAA/TAA和EAA/UAA(非必需氨基酸)为试验1组>3组>2组(P>0.05).2)氨基酸评分,根据FAO/WHO模式比例,其蛋氨酸、缬氨酸是限制性氨基酸,其他必需氨基酸含量均高于FAO/WHO标准值.
분석연구불동잡교육우배최장기육안기산함량.시험선택년령、체질량화체황접근적안격사、리목찬、서문탑이우여본지황우적잡교공우18두;안불동잡교우충분위1조(AG×L)、2조(LM×L)、3조(SM×L),매조위6두,각조수궤선택3두도재,취기배최장기위실험재료.결과표명:1)불동잡교육우조단백(CP)급총안기산(TAA)、필수안기산(EAA)화풍미계유리안기산(FAA)함량위시험1조>2조>3조;기안기산조성즉EAA/TAA화EAA/UAA(비필수안기산)위시험1조>3조>2조(P>0.05).2)안기산평분,근거FAO/WHO모식비례,기단안산、힐안산시한제성안기산,기타필수안기산함량균고우FAO/WHO표준치.
This study was undertaken to analyze amino acid contents of longissimus dorsi muscles in three different crossbreeds (AG × L, LM × L and SM × L) of a local yellow cattle breed with Angus, Limousin and Simmenta, respectively. Six male cattle with similar age, body weight and body condition were selected from each crossbreed. After fattening, three cattle were randomly picked from each crossbreed and slaughtered and longissimus dorsi muscles were collected to analyze amino acid contents. Comparisons of three cattle crossbreeds showed the following decreasing order of the contents of crude protein (CP), essential amino acids (EAA), total amino acids (TAA) and flavor-active free amino acids in longissimus dorsi muscles:AG × L >LM × L>SM × L. In the case of EAA/TAA and EAA/UAA ratios, the decreasing order was AG × L >SM × L>LM × L. According to the FAO/WHO amino acid scoring pattern, methionine and valine were limited amino acids in beef longissimus dorsi muscles regardless of breed and the contents of other EAA were correspondingly higher than the FAO/WHO standards