I adopted an Netherland Dwarf . Its abt 7weeks old. She refused to eat the first two days.Why?

NO. Absolutely feed her lettuce. You should be feeding her a mix of fresh greens, usually 1 cup per pound of body weight every day. Iceberg lettuce is horrible, maybe this is where you heard the lettuce is bad thing. Anything that is a deep green is usually great. Parsley, green leaf, red leaf, or romaine lettuce, kale, endive, mustard or dandelion greens, cilantro, clover, just to name a few are excellent veggies to feed. Pellets should be a secondary food source, and be fed minimally, a good brand without all the nuts and dyes in it and is timothy hay based. Oxbow Bunny Basics/T or any Oxbow brand is excellent, they make a young bunny mix too & organic. Timothy hay shoud be on demand, always available, and grass hays. Most rabbits need a minimum of a week to two weeks to really adjust to a new environment and start eating normally, but you want to make sure she is eating something and still pooping because if rabbits digestive tracts become stagnant you can have real problems. If you put her cage in the center of the action for a good week and don't mess with her, just give her a chance to feel safe while observing everything, things will improve real fast. Offer her apple, grapes, raisins, or banana, some bunny favorites. I guarantee you she'll snack on those if you give her time. Best of luck. Most rabbit rescue groups can give you some excellent ifo too, like the House Rabbit Society or the Rabbit R & R.

No timothy hay is an excellent choice for your rabbit. It aids in their digestive tract in a great way. You especially want them eating timothy hay during a molt, as the rabbit will digest a lot of hair. Hay alone will not provide all of the nutrients though that your bunny needs. You should also feed pellets to insure your rabbit gets those nutrients.