Hakim Hakimullah, Toyofuku Chiharu, Ota Mari, Suzuki Mayuko, Komura Miyuki, Yamada Masashi, Alam Md Shahin, Sangsriratanakul Natthanan, Shoham Dany, Takehara Kazuaki
Laboratory of Animal Health, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8, Saiwai-cho, Fuchu- shi, Tokyo 183-8509, Japan.
The United Graduate School of Veterinary Science, Gifu University, 1-1, Yanagido, Gifu 501-1193, Japan.
J Vet Med Sci. 2017 May 3;79(5):815-817. doi: 10.1292/jvms.17-0029. Epub 2017 Mar 19.
Alkaline agents are well-known for their disinfection capacities against pathogens even at the presence of organic materials, but the durability of their bactericidal efficacies under field conditions is unknown. Therefore, within the present study, two alkaline agents, namely bioceramic (BCX) derived from chicken feces and food additive grade Ca(OH) (FdCa(OH)) derived from natural lime stone, were evaluated for the persistence of their bactericidal efficacies in litter, under simulated field conditions. BCX powder mixed at 50% concentration in litter or FdCa(OH) powder at 20% concentration in litter lost their bactericidal efficacies at 3 days post exposure of chicks, and thereafter, both mentioned alkaline agents could not inactivate bacteria down to the acceptable level (≥3 log CFU/ml reduction).
碱性制剂以其即使在存在有机物质的情况下对病原体的消毒能力而闻名，但它们在野外条件下杀菌效果的持久性尚不清楚。因此，在本研究中，评估了两种碱性制剂，即源自鸡粪的生物陶瓷（BCX）和源自天然石灰石的食品添加剂级Ca(OH)（FdCa(OH)）在模拟野外条件下在垫料中杀菌效果的持久性。在雏鸡接触后3天，以50%浓度混入垫料中的BCX粉末或以20%浓度混入垫料中的FdCa(OH)粉末失去了它们的杀菌效果，此后，上述两种碱性制剂都不能将细菌灭活至可接受水平（减少≥3 log CFU/ml）。
