[Nutritional prophylaxis of hypovitaminosis in Mauritania. Cattle rearing and beta-carotene].

: Some traditional plants known for their resistance to the desert weather, has been studied for their level in beta-carotene. They are called Spartima maritima and Panicum turgidum. We hope with these plants and others, elaborate some zootechnic project. It will be very useful for all the sahel zone from Atlantic to Pakistan.