Liu Yanhong, Espinosa Charmaine D, Abelilla Jerubella J, Casas Gloria A, Lagos L Vanessa, Lee Su A, Kwon Woong B, Mathai John K, Navarro Diego M D L, Jaworski Neil W, Stein Hans H
Department of Animal Science, University of California, Davis, CA 95817, USA.
Department of Animal Sciences, University of Illinois, Urbana, IL 61801, USA.
Anim Nutr. 2018 Jun;4(2):113-125. doi: 10.1016/j.aninu.2018.01.007. Epub 2018 Feb 8.
A number of feed additives are marketed to assist in boosting the pigs' immune system, regulate gut microbiota, and reduce negative impacts of weaning and other environmental challenges. The most commonly used feed additives include acidifiers, zinc and copper, prebiotics, direct-fed microbials, yeast products, nucleotides, and plant extracts. Inclusion of pharmacological levels of zinc and copper, certain acidifiers, and several plant extracts have been reported to result in improved pig performance or improved immune function of pigs. It is also possible that use of prebiotics, direct-fed microbials, yeast, and nucleotides may have positive impacts on pig performance, but results have been less consistent and there is a need for more research in this area.
许多饲料添加剂在市场上销售,以帮助增强猪的免疫系统、调节肠道微生物群,并减少断奶和其他环境挑战的负面影响。最常用的饲料添加剂包括酸化剂、锌和铜、益生元、直接投喂的微生物、酵母产品、核苷酸和植物提取物。据报道,添加药理水平的锌和铜、某些酸化剂和几种植物提取物可提高猪的生产性能或改善猪的免疫功能。使用益生元、直接投喂的微生物、酵母和核苷酸也可能对猪的生产性能产生积极影响,但结果不太一致,该领域需要更多研究。