One of my colleagues found mice showing the irregular cycle in ventilating cages. When he put those mice back to conventional cages, they started the regular cycle!!! Also we know that the ventilating system affects pregnancy efficiency - females needs longer time to become pregnant because of their irregular cycle as well as smaller litter size from those pregnant moms.
I strongly recommend you to use the conventional system from these reasons. Or you can ask the animal facility to shut off the air flow. |
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