關於微量元素的迷思 - 鳥
By Hedy
at 2012-11-01T20:22
at 2012-11-01T20:22
Table of Contents
相信大部分有心養好自家寶貝的人,都知道任何動物都需要微量元素
例如:鈣、磷、鎂、鋅.....維他命
維他命問題比較不大,除了A、D、K、E等脂溶性維他命過量會累積之外
其他都為水溶性,吃多可自行帶謝掉。(而且穀物中大多皆有這些維他命)
微量金屬元素,大部分人都會提供,生化鈣、碘塊、礦物塊、紅土、墨魚骨......
主要多為提供鈣質,尤其是母鳥下蛋更要注意。
這學期跑去修了一堂動物飼養管理學,今天聽教飼料學的老師說
動物所以需的微量元素,以鈣、磷、氯化鈉(鹽)為最大宗
(ps:鈣磷比要正確,不然會導致無法吸收鈣質)
聽到鹽心裡就有個大疑惑,因為很多人說,不要給人吃的食物
除了怕吃到些些動物不能吃的東西外,最怕的應該是鹽分攝取過量
會對腎造成負擔。
所以下課就去問問題啦~~
以下對話內容(精簡版)。
我:動物知道自己該攝取多少微量元素嗎?
老師:動物很聰明,他們知道自己缺甚麼,吃夠了就不會一直吃
我:那為什麼會有鹽分攝取過多造成腎臟負擔的問題?
老師:因為比例問題,例如:某動物他知道自己缺A物質,所以他想攝取
但是因為飼料或是人提供的食物中,不是只有A物質,還有其他BCD......
動物為了獲得足量的A物質,所以超量攝取了其他物質。
結論:所以,如果飲食中完全沒有鹽,是會營養不良的,適量提供鹽是必要的。
但不建議直接加在飲食中,另外提供會比較好(她會自己攝取所需份量)。
其時會問這個問題是因為,我家虎皮會搶人的東西吃
上至水果,下至牛肉麵,他通通想嘗一口,甚至爬到垃圾桶去挖
曾經有一次,不小心掉了乾的海帶芽
結果被她發現,她們吃得很開心,我心裡想,海帶含有很多微量元素,偶爾餵一下
應該還好。
結果前幾天,心血來潮拿了一小塊放進嘴裡,靠...邊邊走,怎麼這麼鹹。
我覺得她還蠻愛鹽的,之前吃麥麥薯條掉的鹽粒,他也會去偷撿(我都儘量不認她碰)
雖然我有提供生化鈣、墨魚骨、紅土、亞馬遜河土...但是每次只要到了生蛋前一陣子
他們都會開始在牆角挖垃圾灰塵亂吃,一直都不知道問題出在哪?
現在開始懷疑可能是鹽......
不過又有新問題,就是這些紅土、亞馬遜河土、碘鈣塊.......
這些東西的微量元素中沒有鹽嗎?(os:應該有吧)
不知道有沒有人有其他經驗,或是我有講錯要補充的?
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