التعريف: The duration of the development from fertilized, deposited or implanted egg to hatching/birth. Corresponds to egg incubation duration in oviparous animals and to gestation period duration in viviparous animals.
التعريف: A food product made of meat, the skeletal muscle and associated fat, and other edible tissues such as organs, livers, skin, brains, bone marrow, kidneys, or lungs
التعريف: Age when primary nutritional dependency on the mother ends and independent foraging begins to make a major contribution to the offspring’s energy requirements.
