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發表於 2013-10-5 00:02:57
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Animal breeding is a branch of animal science that addresses the evaluation (using best linear unbiased prediction and other methods) of the genetic value (estimated breeding value, EBV) of domestic livestock. Selecting animals for breeding with superior EBV in growth rate, egg, meat, milk, or wool production, or have other desirable traits has revolutionized agricultural livestock production throughout the world. The scientific theory of animal breeding incorporates population genetics, quantitative genetics, statistics, and recently molecular genomics and is based on the pioneering work of Sewall Wright, Jay Lush, and Charles Henderson.(http://en.wikipedia.org/wiki/Animal_breeding)
動物育種強調家畜各遺傳性狀的價值評估.選擇生產性狀具有優越價值的動物進行育種
生產性狀分為基因型及表現型
一般能夠預估的是基因型(與生俱來的;源自父母)
而表現型則是外在環境因子(氣溫,營養,飼養管理...........)對基因型表現強度的影響
因此,大家談的是基因型的育種
但別忘了,營養,畜舍,管理.................都會影響育種結果(表現型).因此,選育時,在該種環境,營養.....下選育出經濟性狀最優的種畜
設在屏東(臺灣最南邊),因此,選育出來經濟性狀最優的種畜,可能是在熱帶還能表現出優良經濟性狀的種畜
希望這種種畜在臺灣屏東以北地區的表現應該會較育種地更佳的成績才是
建議大家用學習的心繼續觀賞
可能是未來臺灣種豬的一個重要源頭 |
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