Werner Daniela, Baldinger Lisa, Bussemas Ralf, Büttner Sinje, Weißmann Friedrich, Ciulu Marco, Mörlein Johanna, Mörlein Daniel
Institute of Organic Farming, Johann Heinrich von Thuenen Institute, Trenthorst 32, 23847 Westerau, Germany.
Department of Animal Sciences, University of Goettingen, Kellnerweg 6, 37077 Göttingen, Germany.
Animals (Basel). 2021 Jan 25;11(2):298. doi: 10.3390/ani11020298.
The study aimed to test a very early immunization of pigs to prevent boar taint with regard to its practicability and influence on production performance, its reliability in ensuring good meat and fat quality, and animal welfare. Immunization was already conducted at piglet production stage and could be easily integrated into routine vaccination (week 3) and weaning practices (week 7). The fattening and slaughter performance of the animals was not affected by the immunization regime and was within the usual range. In addition, there were no abnormalities in animal behavior and the prevalence of injuries caused by aggressive interactions. All animals were classified as infertile on the basis of the histological examination of the testicles. However, the testosterone levels measured at slaughter were significantly higher in animals of the early immunization regime than in animals subjected to the standard immunization regime. Androstenone and skatole levels as the main components of boar taint were, on average, higher and varied to a greater extent in early immunized animals. Furthermore, the comparison of the immunization scheme did not result in significant differences for meat quality and for fatty acid composition.
该研究旨在测试仔猪早期免疫预防公猪膻味的可行性、对生产性能的影响、确保良好肉脂品质的可靠性以及动物福利。免疫在仔猪生产阶段就已进行，并且可以轻松融入常规疫苗接种（第3周）和断奶操作（第7周）。动物的育肥和屠宰性能不受免疫方案的影响，处于正常范围内。此外，动物行为没有异常，攻击性互动导致的受伤发生率也没有异常。根据睾丸的组织学检查，所有动物均被归类为不育。然而，早期免疫方案的动物在屠宰时测得的睾酮水平显著高于接受标准免疫方案的动物。作为公猪膻味主要成分的雄烯酮和粪臭素水平，早期免疫动物的平均水平更高且变化幅度更大。此外，免疫方案的比较在肉质和脂肪酸组成方面没有产生显著差异。
