Botelho-Fontela Sofia, Ferreira Sílvia, Paixão Gustavo, Pereira-Pinto Ricardo, Vaz-Velho Manuela, Pires Maria Dos Anjos, Payan-Carreira Rita, Patarata Luís, Lorenzo José M, Silva José A, Esteves Alexandra
Animal and Veterinary Research Centre (CECAV), AL4AnimalS, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal.
CISAS-Center for Research and Development in Agrifood Systems and Sustainability, Instituto Politécnico de Viana do Castelo, 4900-347 Viana do Castelo, Portugal.
Animals (Basel). 2023 Dec 27;14(1):102. doi: 10.3390/ani14010102.
Traditional outdoor pig farming is renowned for its emphasis on animal welfare and the production of highly valued, quality meat. While seasonality is known to impact certain animals, particularly those raised outdoors, there is a lack of research on Bísaro boars, a native Portuguese breed. This research study was conducted on a total of 20 male entire Bísaro pigs, reared in outdoor pens from 4 to 13 months old, and subsequently slaughtered. The animals were divided into two groups: one slaughtered in winter (Wi, = 9), and the other in summer (Su, = 11). The objective was to evaluate testicular morphometry, boar taint compounds, and meat quality traits, including sensory analysis and fatty acid profile. Testicles from the Su group exhibited reduced volume, indicating diminished functionality during that season. While no significant differences were observed in the boar taint compound analysis, panelists could discern a more intense aroma and flavor of boar taint in the Su meat. Other meat quality traits showed no significant variations, but the fatty acid profile displayed higher values in the Wi group. This study reveals that Bísaro boars experience reproductive seasonality, leading to variations in boar taint compounds across the seasons. This information is crucial for farm planning.
传统的户外养猪方式以注重动物福利和生产高价值的优质猪肉而闻名。虽然季节性已知会影响某些动物，尤其是户外饲养的动物，但对于葡萄牙本土品种比萨罗公猪却缺乏相关研究。本研究共对20头雄性完整比萨罗猪进行，这些猪在户外围栏中饲养，年龄从4个月到13个月，随后进行屠宰。这些动物被分为两组：一组在冬季屠宰（Wi，n = 9），另一组在夏季屠宰（Su，n = 11）。目的是评估睾丸形态测量、公猪异味化合物以及肉质特性，包括感官分析和脂肪酸谱。夏季组的睾丸体积减小，表明该季节睾丸功能下降。虽然在公猪异味化合物分析中未观察到显著差异，但评审员能够辨别出夏季猪肉中更浓烈的公猪异味香气和风味。其他肉质特性没有显著差异，但冬季组的脂肪酸谱值更高。这项研究表明，比萨罗公猪存在繁殖季节性，导致不同季节公猪异味化合物有所变化。这一信息对农场规划至关重要。
