The color may vary from tan to reddish-orange, the latter color being due to the presence of porphyrin and bilirubin derivatives. Diets such as these are nutritionally complete and do not require supplementation. Rabbits are coprophagous. They consume soft, moist fecal pellets produced at night. Reproduction Female rabbits are called does, male are called bucks.
Domestic rabbits have no regular estrus cycle.
The most common breeding system is quite simple - take the doe to the buck s cage and leave them together for up to 30 minutes. If the doe is receptive, mating will occur soon after pairing. The average gestation period is 32 days. The average litter size is 7-8. The young weigh 30-100 grams at birth, are hairless, and have closed eyelids.