white lab mice

[Marybrienzo]

I have a paper due and I have been racking my brain, so I am asking for input on the subject of obesity in white lab mice has been related to increased problems with infertility. A new high fiber diet ration what used on a group of obese white lab mice to see if they can induce weight loss in the mice and then increase their fertility. What should I use as a control group. I have to design a simple experiment to test the relationship between weight loss and increased fertility in white lab mice.
Thanks

[mith]

Continue the obesity inducing diet?

[MrMistery]

Mithril is right. Keep a few mice nice, fat and chubby. Here is some "research" on the matter
http://www.albinoblacksheep.com/flash/guineapig