Bad air causes stress in rabbits, which can lead to many health problems if not rectified immediately. I diffuse Essential Oils in my rabbitry to keep the air free of odors and air-born bacteria. This is effective to reduce stress caused by bad air in the rabbitry. I also have an exhaust fan that moves the air every hour in the winter without cooling the barn too much. This same fan runs constantly in the summer to keep the rabbitry cooler.
Rabbits are very intolerant of any kind of microorganisms in their drinking water.
It is very important to have your water tested before setting up a rabbitry. When a Doe is placed with a male rabbit called a Buck they copulate which causes the Doe's ovaries to release eggs into the uterus. The Doe gestates for 28-31 days. Most larger breeds gestate for the full 31 days. If a doe should go over the 31 days, she should be left for no longer than 2 additional days.