Components of human milk 初乳Colostrum: &first milk”;i immature milk 产后4-5days 过渡乳Transitional Milk: 2weeks 成分介于初乳与成熟乳之间 成熟乳Mature Milk:Components of human milk “first milk”; immature milk 产后 4-5 days 初乳Colostrum : 过渡乳Transitional Milk: 2weeks 成分介于初乳与成熟乳之间 成熟乳 Mature Milk: