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试验旨在研究放牧饲养条件下桃源鸡的屠宰性能及肌肉常规品质。选取同一批饲养的24只(公母各半)7月龄平均体重为(1.98±0.20)kg、符合品种标准的桃源鸡进行屠宰和肉品质测定。结果:1桃源鸡屠宰率、全净膛率、胸肌率、腿肌率分别为91.39%、71.54%、12.24%、18.17%;公鸡全净膛率、腿肌率极显著高于母鸡(P<0.01)。2桃源鸡肉粗蛋白、粗脂肪、粗灰分、水分含量平均分别为23.43%、2.50%、1.22%、72.34%;公鸡胸肌粗脂肪含量显著低于母鸡(P<0.05),腿肌粗脂肪含量极显著低于母鸡(P<0.01)。3桃源鸡公鸡剪切力显著高于母鸡(P<0.05);4桃源鸡胸肌、腿肌的肌纤维直径平均分别为23.58、22.58μm,肌纤维密度分别为830.17、878.16根/mm2,公鸡腿肌肌纤维密度显著高于母鸡(P<0.05)。由此可知,桃源鸡具有屠宰性能好、肉质细嫩、营养丰富、肉品质好等特点,是一个优良的地方鸡种。
The purpose of the experiment was to study the slaughter performance and muscle routine quality of Taoyuan chicken under grazing conditions. Select the same batch of 24 (male and female half) 7-month-old average body weight (1.98 ± 0.20) kg, in line with the standard varieties of Taoyuan chicken slaughtering and meat quality determination. Results: 1 Taoyuan chicken slaughter rate, total eviscerated rate, breast muscle rate and leg muscle rate were 91.39%, 71.54%, 12.24% and 18.17% respectively. <0.01). The content of crude protein, crude fat, crude ash and water of Taoyuan chicken were 23.43%, 2.50%, 1.22% and 72.34% respectively on average. The content of crude fat in breast muscle of chicken was significantly lower than that of hen (P <0.05) Extremely significantly lower than that of hens (P <0.01). The shearing force of Taoyuan chicken was significantly higher than that of hen (P <0.05). The average muscle fiber diameters of breast and leg muscle of Taoyuan chicken were 23.58 and 22.58μm, the muscle fiber density were 830.17 and 878.16 roots / mm2 respectively, Muscle fiber density was significantly higher than that of hens (P <0.05). Thus, Taoyuan chicken with slaughter performance, tender meat, nutritious, good quality meat and other characteristics, is an excellent local chicken species.