Centro Tecnológico de la Carne de Galicia, Rúa Galicia No 4, Parque Tecnológico de Galicia, San Cibrán das Viñas, 32900 Ourense, Spain.
Meat Sci. 2014 Jan;96(1):195-202. doi: 10.1016/j.meatsci.2013.06.024. Epub 2013 Jun 22.
The Celta pig is a native breed adapted to the north of Spain and extensive production system. The objective was to study the effects of sex and crossbreeding on carcass characteristics and meat quality. Samples were taken from longissimus dorsi muscle of 52 pigs of three different groups [Celta pure breed (C), Celta crossed with Landrace (C×L) and Celta crossed with Duroc (C×D)]. Non-significant effects of sex on growth were found for all animals in the trial. Cross with Landrace and Duroc grew faster than Celta pure breed and reached the target carcass weight of 150 kg in the least time (113 and 68 days before, respectively). Concerning carcass characteristics, Duroc cross had better carcass quality (higher killing out percentage, carcass compactness index loin and ham percentage and less fat) than the Celta pure line. Regarding meat quality, crossbreeds had less intramuscular fat, lower shear force and hardness than Celta pure line. With regard to fatty acid profile, there was a predominance of MUFA, followed by SFA and PUFA in all animals. Crossbreeding affected the proportion of oleic acid, having the highest percentages (46.75%) in Duroc cross.
长白猪是一种适应西班牙北部和广泛生产系统的本地品种。目的是研究性别和杂交对胴体特征和肉质的影响。从 52 头来自三个不同组的猪的背最长肌中采集样本[长白猪纯系（C）、长白猪与大白猪杂交（C×L）和长白猪与杜洛克猪杂交（C×D）]。试验中所有动物的生长均不受性别的显著影响。与长白猪和杜洛克猪杂交的猪比长白猪纯系生长速度更快，达到 150 公斤目标胴体重的时间最短（分别提前 113 天和 68 天）。就胴体特征而言，杜洛克猪杂交的胴体品质更好（更高的屠宰率、胴体紧实度指数、腰肉和火腿比例以及更少的脂肪）比长白猪纯系。就肉质而言，与长白猪纯系相比，杂交猪的肌肉内脂肪较少，剪切力和硬度较低。关于脂肪酸谱，所有动物的 MUFA 都占优势，其次是 SFA 和 PUFA。杂交影响油酸的比例，在杜洛克猪杂交中具有最高的比例（46.75%）。
