Considerations. The most common organisms in the normal bacterial flora that inhabits the large intestine are anaerobes (Bacteroides, gram-positive rods, and gram-positive cocci), gram-negative enteric organisms, and Enterococcus faecalis. Using differential selective media and enrichment cultures, normal flora can be differentiated.
Rabbits by nature are cold weather animals. They can easily tolerate temperatures at 32 degrees Fahrenheit or lower providing they have shelter from the wind and wet conditions. They have trouble tolerating temperatures above 85 degrees Fahrenheit and must be kept out of direct sun light during the summer months.
For best health, pet rats are best kept in temperatures between 60 and 95 degrees Fahrenheit. This is to avoid the respiratory a â¦ ilments.   Pet rats can live in colder temperatures, but their lifespan will be decreased. If it freezes, your rat might die right away, especially if they do not have adequate insulated shelter, and other rats to snuggle with.