Coliform Counts in Various Bedding Materials

Growth of environmental mastitis pathogens in various bedding materials.

The objective of the study was to determine whether, under controlled conditions, bedding materials vary in their ability to support growth of different environmental pathogens independent of the presence of feces, urine, or other contamination. Five sterilized bedding materials (fine hardwood chips, recycled dried manure, chopped newspaper, softwood sawdust, and chopped straw) and three bacter...

Sand or Sawdust? Bacterial counts in bedding

Fungi in used bedding materials.

Few workers have been concernied with the occurrence of bacteria and fungi withini used beddinig, bedding materials, anid upholstered furniture. Such organisms may be present in the raw materials, added during normal use and storage, multiply under certaiin conditions of humidity, and may be transferred to new felt when new and used materials are garnetted. Conant et al. (1935) studied the mold...

Evaluation of cage micro-environment of mice housed on various types of bedding materials.

A variety of environmental factors can affect the outcomes of studies using laboratory rodents. One such factor is bedding. Several new bedding materials and processing methods have been introduced to the market in recent years, but there are few reports of their performance. In the studies reported here, we have assessed the cage micro-environment (in-cage ammonia levels, temperature, and humi...

Mechanical model testing of rebreathing potential in infant bedding materials.

Rebreathing of expired air may be a lethal hazard for prone sleeping infants. This paper describes a mechanical model to simulate infant breathing, and examines the effects of bedding on exhaled air retention. Under simulated rebreathing conditions, the model allows the monitoring of raised carbon dioxide (CO2) inside an artificial lung-trachea system. Resulting levels of CO2 (although probably...