Ahokpossi A G A Christie, Bonou A Gabriel, Tona Kokou, Karim Issaka Youssao Abdou, Ameyapoh Yaovi
Regional Center of Excellence on Avian Sciences, University of Lomé, Lomé, Republic of Togo.
Laboratory of Animal Biotechnology and Meat Technology, University of Abomey-Calavi, Abomey-Calavi, Republic of Benin.
Vet World. 2023 Jan;16(1):194-203. doi: 10.14202/vetworld.2023.194-203. Epub 2023 Jan 28.
The Goliath chicken is a slow-growing chicken with a high slaughter weight but whose carcass characteristics and meat quality have not yet been documented. This study aimed to evaluate the effect of age at slaughter and sex on the carcass characteristics and technological and sensory meat quality of Goliath chickens raised in southern Benin.
Data on the carcass characteristics and technological and sensory quality of meat were collected from 80 chickens raised in confinement and divided into two groups. The first group was reared for 12 weeks of age and the second group was for 20 weeks of age. The animals were individually weighed using an electronic balance (Terraillon 5000g) and then slaughtered. The different parts of the chicken carcass was weighed using the same method.
The live, hot carcass, cold carcass, wing, thigh, and tail weights of males were significantly greater than those of females (p < 0.01). The wishbone muscle and thigh and tail assembly pH was lower in the 20-week-old chickens than in the 12-week-old chickens. The brightness and red index of the wishbone of the 20-week-old chickens were significantly higher than those of the 12-week-old chickens (p < 0.001). The red index of the wishbone and the yellow index of the thigh and tail assembly of females were lower than those of males.
The meat of 20-week-old Goliath chickens was juicier than that of 12-week-old chickens. Thus, the carcass composition of Goliath chickens is better at 20 weeks of age, especially in males.
歌利亚鸡是一种生长缓慢但屠宰体重较高的鸡，但其胴体特征和肉质尚未有文献记载。本研究旨在评估屠宰年龄和性别对贝宁南部饲养的歌利亚鸡的胴体特征、肉的加工品质和感官品质的影响。
收集了80只笼养肉鸡的胴体特征、肉的加工品质和感官品质数据，并将其分为两组。第一组饲养至12周龄，第二组饲养至20周龄。使用电子天平（泰瑞龙5000g）对动物个体称重，然后进行屠宰。用同样的方法对鸡胴体的不同部位进行称重。
雄性的活重、热胴体重、冷胴体重、翅重、腿重和尾重显著高于雌性（p < 0.01）。20周龄鸡的叉骨肌肉、大腿和尾部组合的pH值低于12周龄鸡。20周龄鸡叉骨的亮度和红色指数显著高于12周龄鸡（p < 0.001）。雌性叉骨的红色指数以及大腿和尾部组合的黄色指数低于雄性。
20周龄歌利亚鸡的肉比12周龄鸡的肉更多汁。因此，歌利亚鸡在20周龄时的胴体组成更好，尤其是雄性。
