Objects re-initalization in c#

Question

Is it considered 'good practice' to re-use objects in c#.
For example:
      Say you have a class called Anima and create an oject of type animal called monkey:

Animal monkey = new Animal(paramA);
monkey = new Animal(paramB);

Answer 1

Yep, that sound about right. The previous instance you now lose reference to should be caught up in the next Garbage Collection cycle.