Nofima Mat, As, Norway.
J Appl Microbiol. 2010 Oct;109(4):1265-73. doi: 10.1111/j.1365-2672.2010.04766.x. Epub 2010 Aug 19.
We have tested the effect of various combinations of formic acid and sorbate on Campylobacter jejuni colonization in broiler chickens to reduce the colonization of this zoonotic pathogen in broiler chicken flocks.
Chickens were offered feed supplemented with different concentrations and combinations of formic acid and/or potassium sorbate. We found little or no effect on the Camp. jejuni colonization levels in chickens that were given feed supplemented with formic acid alone. A combination of 1.5% formic acid and 0.1% sorbate reduced the colonization of Camp. jejuni significantly, while a concentration of 2.0% formic acid in combination with 0.1% sorbate prevented Camp. jejuni colonization in chickens. This inhibition was replicated in two independent trials with a combination of three different Camp. jejuni strains.
Our results show a novel and promising intervention strategy to reduce the incidence of Camp. jejuni in poultry products and to obtain safer food.
To ensure food safety, a reduction of the carcass contamination with Camp. jejuni through reduced colonization of this pathogen in broiler chicken flocks is important. A range of organic acids as additives in feed and drinking water have already been evaluated for this purpose. However, no studies have yet shown a complete inhibition of Camp. jejuni colonization in broiler chickens.
我们测试了甲酸和山梨酸钾的不同组合对肉鸡空肠弯曲杆菌定植的影响，以减少肉鸡群中这种人畜共患病病原体的定植。
鸡只喂食添加了不同浓度和组合的甲酸和/或山梨酸钾的饲料。我们发现，单独添加甲酸对鸡空肠弯曲杆菌定植水平几乎没有影响。1.5%甲酸和 0.1%山梨酸钾的组合显著降低了空肠弯曲杆菌的定植，而 2.0%甲酸与 0.1%山梨酸钾的组合可防止鸡空肠弯曲杆菌的定植。这一抑制作用在两项独立试验中使用三种不同的空肠弯曲杆菌菌株的组合得到了复制。
我们的结果表明，这是一种新颖且有前途的干预策略，可以降低禽肉产品中空肠弯曲杆菌的发生率，获得更安全的食品。
为了确保食品安全，减少肉鸡群中空肠弯曲杆菌对这种病原体的定植，从而降低鸡体的污染，这一点很重要。已经有一系列的有机酸作为饲料和饮用水中的添加剂用于这一目的。然而，目前尚无研究表明完全抑制了肉鸡中的空肠弯曲杆菌定植。
