In this paper, the effects of sodiumhumate on laying performance of Nick(Parent Stock) egg genus chicken aged 48 weeks was studied.
为研究腐植酸钠对蛋种鸡生产性能的影响,选用48周龄尼克红父母代蛋鸡进行试验。
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The biological feed additive of the present invention contains sodiumhumate in 50-80%, oilcake 15-40 and rice husk in 2-15% as well as inorganic elements and vitamins.