If you want to mix them in with the older hens, have the chicks in a little chicken tractor(or separate pen)just outside the older flocks run, when they are old enough to be outside. You can put your chicks outside when they are about 3 or 4 weeks old, but they still might need a heat lamp.
Inhalation is the process of bringing air into the lungs while exhalation is the process of pushing the air out of the lungs. Inhalation helps the body bring in oxygen and exhalation helps the body expel carbon dioxide. Continue Reading.
In summary, inhalation causes the heart rate to be higher and exhalation results in a reduction in heart rate. We see this most readily as a cyclic compression and retraction of the R wave to R wave intervals - i.e. - the R waves are compressed during inhalation and retract during exhalation. B. Sinus Arrest : Sinus arrest is also called sinus pause or sinus block. Sinus arrest occurs when the sinoatrial node stops firing.