{"Equipment":"<ul>\t<li>\t\tLaboratory Balance</li></ul>","Procedure":"<ul>\r\n<li>Place a cage containing mice on an operation table</li>\r\n<li>Remove a mouse from its cage.&nbsp; Determine and record its weight.</li>\r\n<li>Return the mouse to the cage or continue with a procedure.</li>\r\n</ul>","Purpose":"<p>\r\n\tThe body weight test measures the weight of the mouse in a time series, allowing monitoring of its evolution; also, it is required in many other procedures.</p>\r\n","Notes":"<p>The body weight of each mouse is to be measured weekly, from the 4<sup>th</sup> until the 16<sup>th</sup> week. Optional additional weighs may also be recorded.</p>"}