Prevent Mathematica from playing an animation upon loading

When I load a notebook that I’ve previously saved containing lots of animations, Mathematica will automatically begin playing all of them. (Typically, I’m animating plots, so my code would look something like this:


This leads to a lot of lag and it is time-consuming to have to pause them all before I can continue working. Is there an option or method to prevent Mathematica from automatically playing animations when loading a notebook?