1.Wild jungle fowl were domesticated more than 3,000years ago in China,and eggs were produced since then. 中国早在3000多年前就把野禽驯化为家禽,蛋的生产也就从那时候开始。 2.A hen lays 150 to 250 eggs a year. 一只母鸡...1.Wild jungle fowl were domesticated more than 3,000years ago in China,and eggs were produced since then. 中国早在3000多年前就把野禽驯化为家禽,蛋的生产也就从那时候开始。 2.A hen lays 150 to 250 eggs a year. 一只母鸡一年下150到250只蛋。 3.Yolk colour has nothing to do with the nutritivevalue of the egg.蛋黄的颜色和鸡蛋的营养价值无关。展开更多
文摘1.Wild jungle fowl were domesticated more than 3,000years ago in China,and eggs were produced since then. 中国早在3000多年前就把野禽驯化为家禽,蛋的生产也就从那时候开始。 2.A hen lays 150 to 250 eggs a year. 一只母鸡一年下150到250只蛋。 3.Yolk colour has nothing to do with the nutritivevalue of the egg.蛋黄的颜色和鸡蛋的营养价值无关。