Institute of Animal Sciences, Warsaw University of Animal Sciences, Warsaw, Poland.
Department of Microbiology, Nicolaus Copernicus University in Torun, Ludwik Rydygier Collegium Medicum, Bydgoszcz, Poland.
BMC Vet Res. 2022 Aug 3;18(1):298. doi: 10.1186/s12917-022-03402-5.
High stocking densities, closed animal houses, and elevated concentrations of bacteria, fungi, and the products of their activity, including ammonia and hydrogen sulphide, have adverse health effects. Active techniques used to reduce unfavourable environmental conditions, such as ventilation, sprinkling, bedding sorbents, and nutritional treatments, are not always sufficient to improve the animals' living environment. The current paper aims to evaluate the effect of radiant catalytic ionization (RCI) on airborne microorganisms, cage microbiological status, gaseous ammonia concentrations, and the haematological status of mice in animal houses. After one week of operation of an RCI system, the number of airborne bacteria and fungi in the experimental room decreased in comparison to the first day of the experiment (p < 0.05 and p < 0.05 respectively), as did the concentrations of ammonia (p < 0.01) and dust. At the same time, the basic health parameters of the mice, determined in the blood, were very similar between the control and experimental room. RCI seems to be an ideal solution to ensure high hygiene standards in animal rooms and houses with limited use of disinfectants or antibiotic treatment of sick animals. An additional, environmental benefit is the limited amount of nitrogen released.
高饲养密度、封闭的动物房屋以及细菌、真菌及其活动产物（包括氨和硫化氢）浓度的升高，对健康有不利影响。通风、喷淋、垫料吸附剂和营养处理等主动技术用于减少不利环境条件，但并不总是足以改善动物的生活环境。本文旨在评估辐射催化电离（RCI）对动物房空气中微生物、笼内微生物状况、气态氨浓度以及小鼠血液学状况的影响。RCI 系统运行一周后，与实验第一天相比，实验室内空气中的细菌和真菌数量减少（分别为 p<0.05 和 p<0.05），氨（p<0.01）和灰尘浓度也减少。同时，在血液中测定的小鼠基本健康参数在对照组和实验组之间非常相似。RCI 似乎是确保动物房和动物舍达到高卫生标准的理想解决方案，在这些地方，限制使用消毒剂或对患病动物进行抗生素治疗。另一个环境效益是氮的释放量有限。
