【摘要】 以定远猪为母本 ,分别与瘦肉型猪种杂交所产 F1 代仔猪进行肌肉生长性状及肌肉蛋白质含量、氨基酸组分的分析与比较。结果发现 :1眼肌重、眼肌面积与蛋白质含量三者间达到较高的正相关 (r=0 .74～ 0 .85 ) ,蛋白质含量高者 ,眼肌重和眼肌面积均明显增加 ;2杂交后 ,F3代猪肌肉蛋白质含量均有提高 ,并以长白×定远杂交组合改良效果最好 ,达到 2 2 .6 % ;8杂交后 F1 代猪肌肉中赖氨酸、亮氨酸、异亮氮酸、缬氨酸含量均较对照组有不同程度提高 ,并且赖氨酸、亮氨酸、异亮氮酸与骨骼肌生长间有较强的正相关 ,其中赖氨酸与肌肉增长相关性为 r=0 .5 1～ 0 .96 ,亮氨酸、异亮氨酸与肌肉增长相关性为 r=0 .40～ 0 .80 ;4杂交后可有效提高猪瘦肉产出量 ,明显提高瘦肉率 ,并适应改进猪后躯的发育更多还原

【Abstract】 Our research was going to test the relationship between the muscle growing characteristics and component of amino acids (AA)when Dingyuan Sow crossed meat type boar. The result showed,There was the positive correlation among the eye muscle weight ,area and protein content in muscle(r=0.74～0.85),between Lysine level (r=0. 51～0. 96) or leucine (Isoleucine) level (r=0.40～0.80) and lean meat weight. The eye muscle weight and area was increased with the protein content raising. The lean meat weight was increased with the lysine or leucine. Isoleucine level getting high when crossbreed so that the output of meat and lean meat percentage was significantly increased.更多还原