Abstract The aim of this study was to evaluate the effect of the production system on growth performances and meat quality of suckling Messinese goat kids. At birth, 102 suckling kids were divided into two homogeneous groups for sex and body weight (3.4 kg); animals of the SES group were fed exclusively with spontaneous pasture and kept in the stable during the evening; animals of the ES group were fed exclusively with spontaneous pasture, characterised by the presence of Quercus suber, and kept exclusively outdoors. From birth to weaning, kids were weighed every10 days. At slaughter, carcase yields and meat quality traits on the Longissimus dorsi muscle were studied. Data were subjected to ANOVA. ES group showed the highest final body weight (10.53 kg vs. 9.40 kg; p < .001). As regard the meat traits, ES group showed the lowest final pH (5.63 vs. 5.96; p < .001), the lowest value of Hue (46.24 vs. 62.64; p < .005) and the highest values of cooking loss (ES 25.53% vs. SES 19.60%; p < .05) and shear force (ES 5.04 kg/cm2 vs. SES 3.63 kg/cm2; p < .05). Chemical composition showed similar values in both groups. Meat fatty acid composition showed the highest values of MUFA (45.89% vs. 40.90%; p < .05) and PUFA (0.14% vs. 0.11%; p < .05) and the lowest of ω – 6/ω – 3 ratio (4.89 vs. 6.98; p < .05) and Thrombogenic Index (1.64 vs. 1.98; p < .05) in the ES group. The results confirm the favourable characteristics of goat meat and the relation between the typical production system of goats in the Nebrodi area and their performances. HIGHLIGHTS The production system did not affect the weight of kids at birth, while there were significant differences in kid’s performance in relation to the breeding system. The chemical composition of the LD muscle was not affect by the production system. The production system significantly influenced the fatty acid composition of the meat. The meat quality parameters studied reflect the modern guidelines for a healthy diet recommend, that reduce the animal fat consumption, especially if rich in saturated fatty acids, and could be a tool to identify and characterise a product with Protected Designation of Origin (PDO) as ‘capretto Messinese’.

中文翻译：

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生产制度对乳山羊幼仔生长性能及肉质性状的影响

摘要 本研究的目的是评估生产系统对乳山羊幼仔生长性能和肉质的影响。出生时，102名乳婴被分为性别和体重（3.4公斤）两个同质组；SES组的动物只用自发牧场喂养，晚上饲养在马厩里；ES 组的动物完全用自发牧场喂养，特点是存在 Quercus suber，并且只在户外饲养。从出生到断奶，孩子每 10 天称重一次。在屠宰时，研究了背最长肌的胴体产量和肉质特性。数据经过方差分析。ES 组显示出最高的最终体重（10.53 kg 与 9.40 kg；p < .001）。在肉类性状方面，ES 组的最终 pH 值最低（5. 63 对 5.96；p < .001）、色相的最低值（46.24 对 62.64；p < .005）和蒸煮损失的最高值（ES 25.53% 对 SES 19.60%；p < .05）和剪切力（ES 5.04） kg/cm2 与 SES 3.63 kg/cm2；p < .05）。化学成分在两组中显示出相似的值。肉类脂肪酸组成显示出最高的 MUFA（45.89% 对 40.90%；p < .05）和多不饱和脂肪酸（0.14% 对 0.11%；p < .05）和最低的 ω – 6/ω – 3 比率ES 组的（4.89 对 6.98；p < .05）和血栓形成指数（1.64 对 1.98；p < .05）。结果证实了山羊肉的优良特性以及内布罗迪地区典型的山羊生产系统与其性能之间的关系。亮点 生产系统不会影响孩子出生时的体重，而与育种系统相关的孩子的表现存在显着差异。LD肌肉的化学成分不受生产系统的影响。生产系统显着影响了肉的脂肪酸组成。研究的肉类质量参数反映了现代健康饮食指南建议，减少动物脂肪的消耗，特别是如果富含饱和脂肪酸，并且可以作为识别和表征具有受保护原产地名称 (PDO) 的产品的工具'capretto Messinese'。