Meira Márcio, Afonso Isabel M, Casal Susana, Lopes Júlio Cesar, Domingues Jéssica, Ribeiro Virgínia, Dantas Rui, Leite José V, Brito Nuno V
Escola Superior Agrária, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun'Álvares, 4900-347 Viana do Castelo, Portugal.
CISAS, Escola Superior Agrária, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun'Álvares, 4900-347 Viana do Castelo, Portugal.
Animals (Basel). 2022 Sep 30;12(19):2640. doi: 10.3390/ani12192640.
The "Branca" breed is a dual-purpose Portuguese autochthonous chicken breed, produced in extensive systems and in small flocks, especially in the Entre Douro and Minho regions. A total of 40 birds (n = 20/sex) were slaughtered between 38 and 42 weeks (males) and 110 and 120 weeks (females), and carcass and meat quality parameters were evaluated. The results showed significantly higher weights and differences for males between sexes and pieces ( ≤ 0.05) in the meat physicochemical composition. Water holding capacity (WRC), moisture and ash contents were influenced by sex. They were higher in males in the breast and drumstick and lightness (L*) and lipid content were higher in females ( ≤ 0.05). The breast meat presented greater lightness, moisture, ash and protein contents, while the drumstick showed a higher pH value, redness (a*) and lipid content, in both sexes ( ≤ 0.05). Regarding the nutritional properties, "Branca" meat revealed a good proportion of minerals and the female meat showed, in both pieces ( ≤ 0.05), significantly lower values for total saturated fatty acids (SFAs) and higher values for monounsaturated fatty acids (MUFAs). Breast meat was richer in n-3-PUFAs (C22:5n-3 and C22:6n-3) in both sexes ( ≤ 0.05). Considering the results obtained, it can be concluded that "Branca" breed meat is a healthy food characterized by a good general nutritional profile.
“布兰卡”品种是一种葡萄牙本土两用鸡品种，采用粗放式养殖系统，以小群饲养，尤其多见于杜罗河和米尼奥地区。共屠宰了40只鸡（雌雄各20只），雄性鸡屠宰时周龄为38至42周，雌性鸡为110至120周，并对胴体和肉质参数进行了评估。结果显示，肉的理化成分在性别和部位之间存在显著更高的重量差异（P≤0.05）。持水能力（WRC）、水分和灰分含量受性别影响。鸡胸肉和鸡腿肉中，雄性的这些指标更高，而亮度（L*）和脂质含量在雌性中更高（P≤0.05）。在两性中，鸡胸肉的亮度、水分、灰分和蛋白质含量更高，而鸡腿肉的pH值、红度（a*）和脂质含量更高（P≤0.05）。在营养特性方面，“布兰卡”鸡肉矿物质比例良好，雌性鸡肉在两个部位（P≤0.05）的总饱和脂肪酸（SFA）值显著更低，单不饱和脂肪酸（MUFA）值更高。两性鸡胸肉中的n-3多不饱和脂肪酸（C22:5n-3和C22:6n-3）含量都更高（P≤0.05）。综合所得结果可以得出结论，“布兰卡”品种鸡肉是一种健康食品，总体营养状况良好。
