Its use is primarily in dairy cattle and peri-urban areas where complementary services including milk marketing are available.

它主要用于奶牛和城市周边地区，这些地区提供包括牛奶营销在内的配套服务。

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WHO recommends that infants start receiving complementary foods at six months (180 days) of age in addition to breast milk.

世卫组织建议婴儿在6个月大时(180天)开始接受除母乳之外的补充食物。

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After the age of one, and then gradually incremental complementary, remain unchanged on the milk.

一岁以后，辅食再逐渐增量，奶量就保持不变了。

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