沙门氏菌病:食品安全的拮抗剂

Globally it is estimated that almost 94 million cases of salmonella poisoning are registered every year. 这使它成为食品安全斗争中的头号敌人. Poultry meat and eggs are some of the most commonly linked food products linked to salmonellosis outbreaks. New control measures to reduce the impact of this bacterium on global health are constantly being implemented by countries and regions: and with clear effects. However that doesn’t mean it is always easy to meet these requirements when you are poultry production professional. 

一个经常被忽视的工具:水卫生

Successful control programs consider the whole poultry production pyramid - starting from breeders down to broilers and even all the incoming feed materials, 生产过程中使用的水和其他材料. One of the tools available to manage the incidence of Salmonella in your poultry  is the use of liquid products in the last days of broiler production via water that aim to manage the incidence of Salmonella intestinal contamination and transfer to the processing plants.

值得分享的案例

An integrator in the Midwest of the US was observing increased Salmonella in their production. They self-monitor in order to ensure meeting the FSIS (Food Safety and Inspection Service) directive’s requirement of a maximum of 9.8% positive carcasses to maintain a Category 2 status (half of that for a Category 1 status; in which producers aim for). 在禽类加工过程中, 他们跟踪并把鸟从每个制作屋拉出来, do carcass wash’s and subsequently analyzed them for the presence of the pathogen. 事实证明，FSIS指南很难坚持. 

最好的A/B测试

顾客想试一试 proproce™独家NC (an organic acid based liquid product with addition of a phytochemical compound) to compare it to sodium bisulphate based product they were using at the time. The product delivered to the animals via drinking water prior to slaughter. In the period between mid-2020 and mid-2021 they intermittently used both products. The immediate results they saw when using proproce™独家NC were validated repeatedly by reverting back to sodium bisulphate. This proved that results were not due to coincidental internal pathogen reductions but were directly related to the choice of product used in the water. 还有比这更好的A/B测试方法吗? A diary:

2020年10月
proproce™独家NC was tested for one week 48 hours prior to slaughter.  结果并没有立即显现, the application time was increased to 72 hours before slaughter for another two weeks following this period (see graph). It was in this period that a clear reduction of Salmonella positive birds was observed: below the 8% which seemed so elusive before. 

2020年11月
试用期结束, the integrator reverted to sodium bisulphate for 8 weeks from 2020年11月 to January 2021. 沙门氏菌阳性发生率增加到18%以上. 

2021年1月至3月
In January 2021 the processing plant introduced additional measures to control salmonella. During this time a second trial was started which again tested both products consecutively. Results once again favored proproce™独家NC in the water for 72 hours before slaughter. 

2021年3月至7月
A third, 长时间试验, was conducted with proproce™独家NC in the water for 72 hours before slaughter. Again, 沙门氏菌水平得到改善, and then levels increased again when proproce™独家NC was removed for 2 weeks in July. This producer is still using proproce™独家NC to this date.

总之

Thanks to proproce™独家NC the percentage of Salmonella positives was reported at 4.平均97%，显著减少了48.1% compared to the baseline results during the entire period from August 2020 to July 2021. In this operation the product was clearly able to control the Salmonella contamination of broiler carcasses.

如有要求可提供参考资料.