Departamento de Producción Animal, Universidad Politécnica de Madrid, Ciudad Universitaria, 28040 Madrid, Spain.
Meat Sci. 2012 Mar;90(3):715-20. doi: 10.1016/j.meatsci.2011.11.001. Epub 2011 Nov 9.
The effects of gender and castration of females (IF, intact females; CF, castrated females; CM, castrated males) on performance and carcass and meat quality were studied in crossbred pigs (Landrace×Large White dams×Duroc sires) slaughtered at 119.2 (experiment 1) or 131.6 (experiment 2) kg body weight. Intact females had better feed conversion and less carcass fat than CF and CM. Trimmed shoulder yield was higher for CM than for CF with IF being intermediate. Primal cut yield and meat quality were similar for all treatments. Proportion of linoleic acid in backfat was lower in CF than in IF or CM and the differences were significant when pigs were slaughtered at 131.6kg. The higher fat content and the fatty acid profile favor the use of castrated females and males over intact females for the production of heavy pigs destined to the dry-cured industry.
本研究旨在探讨性别和雌性去势（IF，未去势雌性；CF，去势雌性；CM，去势雄性）对杂交猪（长白母猪×大白公猪×杜洛克公猪）性能、胴体和肉质的影响。这些猪在体重为 119.2kg（试验 1）或 131.6kg（试验 2）时进行屠宰。与 CF 和 CM 相比，IF 具有更好的饲料转化率和更少的胴体脂肪。CM 的肩部修剪产量高于 CF，IF 则介于两者之间。初级切块产量和肉质在所有处理中相似。背脂中亚油酸的比例在 CF 中低于 IF 或 CM，当猪在 131.6kg 时屠宰时，差异具有显著性。较高的脂肪含量和脂肪酸谱有利于使用去势雌性和雄性猪来生产体重较大、适合干腌肉工业的猪。
