Animal and Veterinary Research Centre (CECAV), AL4AnimalS, Universidade de Trás-os-Montes e 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.
Theriogenology. 2024 Jan 15;214:89-97. doi: 10.1016/j.theriogenology.2023.10.016. Epub 2023 Oct 13.
Immunocastration can be an alternative to surgical castration in Bísaro pigs when there is a need to keep animals on the farm until at least 8 months old. As an autochthonous breed, some particularities must be addressed when doing immunocastration, for which 3 different protocols were tested and two control groups were made with surgically castrated males (SC) and boars (Bo). Two protocols were made in prepubertal pigs, with two (E2) and three inoculations (L3) in the first cycle, and another in adults (A2) with only two inoculations. Physicochemical parameters and boar taint compounds quantification and sensory analysis of the meat from the studied pigs were assessed. Immunocastration provided intermediate values between surgically castrated pigs and entire males, with low levels of boar taint compounds. The L3 group provided closer results to SC, which was also corroborated by the sensory analysis. Although the other two protocols had no significant differences with Bo, there was a positive tendency towards them. As is, the L3 protocol was promising as a good alternative to surgical castration, maintaining the characteristic attributes of the Bísaro pig meat.
免疫去势可以作为比萨拉猪在需要将动物留在农场直到至少 8 个月大时的手术去势的替代方法。作为一个本土品种，在进行免疫去势时必须注意一些特殊性，为此测试了 3 种不同的方案，并设立了两组手术去势公猪（SC）和公猪（Bo）对照组。两种方案在未成熟的猪中进行，第一周期进行两次（E2）和三次接种（L3），另一种在成年猪中进行（A2），仅进行两次接种。评估了研究猪的肉的物理化学参数和公猪异味化合物的定量和感官分析。免疫去势提供了介于手术去势猪和整个公猪之间的中间值，公猪异味化合物水平较低。L3 组提供了更接近 SC 的结果，这也得到了感官分析的证实。尽管其他两种方案与 Bo 没有显著差异，但它们有积极的趋势。因此，L3 方案有望成为手术去势的良好替代方案，保持了比萨拉猪的肉质特征属性。
