Rodent Improv

Pet rats are kept in groups in wire cages. Each pet rat should have a space of at least 2 cubic feet. The spacing between wires depends on the size of  the rats kept, it should be less if  baby rats are kept in the pet cage. Paper based cat litters may be used in the cage, which should be cleaned at least once a  week.

Rats are omnivorous animals, and need both plant and animal sources of  food. Most mixed grain diets available at pet stores do not provide adequate nutrition. Lab blocks are recommended and fruits may be given to the rats as treats.

Since pet rats are clean, quick learners and sociable, domesticated rats are becoming  popular pets in homes. Originally, rats were domesticated by rat catchers, who trained them and are now available at pet shops and specialized rat breeders.

Most pet rats are brown rats, white laboratory or black rats. They are classified according to their  size, hair type and markings on their body. Participation in rat shows is also based on these criteria. While most wild rats are of a uniform colour, domesticated rats may change colour and lose hair.

Most pet rats live for 2-3 years, though rats have lived for more than 7 years in laboratories, where they receive good nutrition. On an average rats weigh about 400 g, and  the male rat is heavier than the female rat. Tailless rats have been developed through selective breeding. However, this is controversial, since the tail is required by the rat  for balancing and adjusting body temperature.

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