英语翻译42Two of them only demonstrated a significant improvemen

英语翻译42
Two of them only demonstrated a significant improvement of the
feed conversion (Figure 4b).
Figure 4 Effect of increasing levels of copper in the diet of growing finishing pigs (25 to ca. 100 kg body weight) on average daily body weight gain (4a) and feed conversion (4b).
The grey areas indicate the levels of copper inclusion higher than 175mg/kg feed
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其中两人只表现出了明显改善饲料转化(图4b).图在生长肥育猪饲料4铜增加的程度的影响(25给CA.体重100公斤)的体重平均每天增加(第4a )和饲料转化(4b)条.表明的灰色地带列入铜比175mg/kg饲料更高的水平

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