成熟乳：产后 14天后所分泌的乳汁称为成熟乳，实际上要到30天左右才趋稳定。
产后两周内，初乳逐渐变成熟乳。
The colostrum gradually changes to mature milk during the first two weeks after birth.
母乳脂肪含量与母体血浆脂质水平在初乳期呈正相关。 在过渡乳期及成熟乳期无相关性；
There was a positive correlation between maternal plasma and milk lipid levels in colostrum stage.
伴随着中国乳业潜在市场空间逐步转变为实际的市场需求，中国乳品行业进入成熟竞争阶段。
Follows the Chinese dairying potential market transforms gradually into the reality market demands, the Chinese dairying industry enters the mature competition stage.
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