中草药添加剂对生长肥育猪横纹肌肌纤维特性及肉质的影响

 选用20 kg左右的“杜长大”三元杂交猪80头,随机分成对照组、试验组,测定添加中草药添加剂对横纹肌肌纤维特性和肉质品质的影响。结果表明,试验组的大理石纹评分比对照组提高了23.33%（P＜0.01）、肌间脂肪的含量增加了52.77%（P＜0.01）、嫩度改善了13.53%（P＜0.05）;而失水率、贮存损失分别降低了5.03%（P＜0.05）和20.35%（P＜0.05）.试验猪的肌纤维直径比对照组降低了7.98%(P＜0.05)、而密度增加了4.70%(P＜0.05).结果提示,添加中草药添加剂对肉质的改善的作用与横纹肌肌纤维直径的减少、肌间脂肪含量的增加有关。

Effect of Chinese Herb Feed Additives on the Characteristics of Striated Muscle Fiber and Meat Features in Growing and Finishing Pigs

16 growing and finishing pigs (Duroc×Landrace×Yorkshire, 20kg initially) were assigned into control and treated group set with four replicate pens per treatment by weight and sex. Fed basic diet supplemented with Chinese herb feed additives or antibiotic/chemical compound drug. The results indicated that comparing to control group,Chinese herb feed additives increased the grade of marbling, the content of intramusclar fat and the tenderness of treated pigs by 23.33%(P＜0.05), 52.77% (P＜0.01) and 13.53% (P＜0.05) respectively. The water lose ratio and the ratio of storing lose decreased by 5.03% and 20.35% respectively (P＜0.05). It also found that the muscle fiber diameter of eye muscle decreased by 7.98%(P＜0.05)and the muscles fiber density increased by 4.79%(P＜0.05). The results indicated that the effect of Chinese herb feed additives on improving the meat features in growing and finishing pigs may be relationship to the decrease of straited muscle fiber diameter and the increase of intramusclar fat.