Prevention of Salmonella Infection in Layer Hen Fed with Microbial Fermented Citrus Shell

Abstract

Nowadays many people use antibiotics to protect processed foods from many pathogenic bacteria. The abuse of antibiotics, however, can run the risk of creating resistant forms of bacterium. Our study focus is on making new substances that can not only replace antibiotics but also be friendly to the environment. In our experiments, we used fermented citrus fruit, soil microbes and coenzyme Q10 as probiotics and prebiotics. Chickens in the experimental group were fed these substances via oral route while those in the control group were not. After specific time periods, blood and feces samples were collected to test for Salmonella spp.. It is interesting that fermented citrus fruit was the most effective in suppressing this bacterium. Furthermore, dissection of the experiment group chickens shows that their livers did not change to a yellow color, in contrast to the control group. The results confirmed our proposal that the chickens fed with these materials can be protected from infection by Salmonella and other pathogens. These probiotics and prebiotics are highly practical because they are natural substances that can be easily recycled in the environment. It can also be used as an animal feed ingredient because of its safety.

Synergistic Effect of Brazilein in Combination with Hygromycin-b against Staphylococcus aureus

“…에서는 식품과 관련한 MRSA (methicillin-resistant S. aureus) 의 오염이 보고되고 있으며 1996년에는 vancomycin에 대하여 저하된 감수성을 나타내는 S. aureus가 일본에서 발견된 이 후, 여러 나라에서 vancomycin 내성 S. aureus (vancomycinresistant S. aureus, VRSA)가 나타나기 시작하면서 슈퍼박테 리아로 불리기 시작하였다 (Kang et al, 2010;Kim et al, 2010;Shin and Seong, 2006). MRSA와 VRSA 같은 슈퍼박테리아는 출현 이후 지역사회에 빠르게 증 가되고 광범위하게 노출되어있어 그 심각성이 점차 높아지 고 있으며, 일반 S. aureus와 달리 cephalosporin, ampicillin, nafcillin 등과 같은 β-lactam 계열 항생제를 비롯하여 aminoglycoside 및 macrolides 계열의 항생제에 대해서도 내성 을 지니고 있는 균주로 발전되어 감염증 치료에 큰 어려움을 겪고 있는 실정이다.…”