Re: [問題] 魚的成長速度跟缸裡的密集程度有關嗎?
魚隻個別因素還是最大的
只要有養魚應該都會有明顯感受
像我丈人 同時養好幾隻七彩神仙 有些長很快很大
有些就是不長 同一缸條件一模一樣
我自己 同時養三隻黑魔鬼
有一隻長超快 另外兩隻就速度差不多
買來的時候三隻都三公分左右
一年後最快那隻已經十公分了=.=
其他才五六公分左右而以
你那朋友可能剛好死過一群後 比較弱的都死了
剩下來的都是超強魚種 所以長特別大不意外XD
話說我想養殖業都是這樣育種的
你把那些長得很快的魚集中繁殖
下一代又繼續過濾出長超快的魚 繼續繁殖
如此好幾代 就能養出長超快的魚種
台灣的雞肉長超快 其實是靠育種來的
從蛋變成肉雞只要三星期就能出貨 成長超快
從來就不是靠打針 這謠言到現在還是一堆人相信 無解
開玩笑幾萬隻雞怎麼打XD
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