染料锥虫蓝对卵黄囊的胞饮作用具有明显的双向作用.The dye Trypan Blue has a remarkable biphasic effect on pinocytosis by yolk sal.卵黄囊逐渐被血管化了.The yolk sac is gradually vascularized.日粮中添加卵黄抗体和金霉素可以提高肉鸭血清IGF-I水平.Dietary chicken egg - yolk antibodies...
目前,30%的爬行动物、鸟类和鱼类面临灭绝的危险。30 percent of reptiles, birds, and fish are currently threatened with extinction.牛奶、油性鱼类和鸡蛋都含有维生素D.Milk, oily fish and egg all contain vitamin D.彼得·福雷是自然历史博物馆鱼类化石展厅的负责人。Peter Forey is curator of ...