Seasonal variation of some minerals in milk of large herds

[摘要] The samples of bulk milk from seven large herds were analyzed each decade over one year. On the basis of 284 samples the seasonal variation of Ca, P, CI, Na, K, Zn and ash content was studied in milk of black-white Friesien and...

[学科分类] 工程和技术（综合）

[关键词] milk;minerals;seasonal variation