In this paper, the effects of sodium humate 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。
TMX Group, parent of the Toronto Stock exchange and TMX Venture exchange, is also making good headway in wooing foreign listings to the exchanges.
TMX集团是纽约证券交易所和TMX风险交易所的母公司，目前也在积极寻求外国公司在其交易所上市。
TMX Group, parent of the Toronto Stock exchange and TMX Venture exchange, is also making good headway in wooing foreign listings to the exchanges.
TMX集团是纽约证券交易所和TMX风险交易所的母公司，目前也在积极寻求外国公司在其交易所上市。
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