鸡蛋都是双黄蛋好吗

2024-11-19 17:33:38
推荐回答(2个)
回答(1):

沈阳农业大学动物遗传教研室杨桂琴老师认为,鸡鸭中专门有一种是高产双黄蛋的,这是由家禽的遗传原因造成的,双黄率高成为稳定的遗传基因之一,代代相传,如星杂288蛋鸡双黄率为2.77%,高邮鸭双黄率为1%-14%。像高邮鸭造成的双黄鸭蛋已经成为著名的品牌。如果是普通鸡下双黄蛋很可能是青年母鸡,生殖机能旺盛,营养过于丰富所导致。 针对市场上集中出售的双黄鸡蛋,大连韩伟集团董事长韩伟认为,这很可能是有人到一些大的鸡场专门收购双黄鸡蛋,然后想卖个好价钱。通常母鸡每天下一个鸡蛋,当鸡群受到惊吓,比如有飞机经过、有狗叫、有汽车鸣笛时,母鸡狂奔乱飞,腹压突增,压破“卵泡缝痕”,母鸡会瞬间下两个蛋黄,24小时内包裹在蛋清中,产生双黄蛋。正常鸡场出现双黄蛋的几率在0.5%左右,因为双黄蛋看起来会大一些,比较容易辨认,但它们都与正常鸡蛋混在一起出售。而如果一个鸡场经常出现大量的双黄蛋,韩伟认为,很可能鸡群的饲养环境有问题。杨桂琴考虑,并不排除有使用促排卵素的可能。 很难说更有营养 说到双黄蛋与普通鸡蛋哪一个更有营养,大医附属二院营养师王兴国说,“双黄蛋”受青睐是因为它比较难得,有的民俗中将“双黄蛋”视为可给人们带来吉利祥和的“祥瑞食品”,在购买的鸡蛋中偶而发现一个“双黄蛋”比较欣喜。但从营养而言,一个鸡蛋的营养成分中蛋清占28%、蛋黄占72%。蛋清主要含蛋白质。蛋黄主要含卵黄磷蛋白、脂卵黄磷蛋白、磷脂、甘油三酯、胆固醇。市民不能受市场炒作跟风走

回答(2):

双黄蛋通常指一个鸡蛋中有两个蛋黄的鸡蛋,营养价值相对较高,适量进食对于人体健康有利。但不建议一次进食过多,以免导致不良反应。
双黄蛋与普通鸡蛋相比,营养价值相差不大,都含有蛋白质、卵磷脂、叶酸、钙、钾、镁、磷、黄体素、叶酸、胆固醇等多种营养成分,适量进食双黄蛋,有助于补充身体所需的营养物质,同时也可以为人体提供能量,对身体健康有一定好处。
需要注意的是,双黄蛋中含有一定的胆固醇、蛋白质成分,应该避免进食过多。如果双黄蛋吃多了,可能会导致胆固醇过高,增加心血管疾病的风险,还可能出现腹胀、腹痛等消化不良症状,甚至引起肥胖。
因此,鸡蛋适量食用就好,多种营养的摄入还是要依靠丰富多样的饮食。

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