Reference Experience and Countermeasures for Dairy Herd Improvement Program Extension in China
GUO Huiyuan1, LUO Yi2, REN Fazheng1,3, MENG Zhaoxiang2, FAN Chunlin2,
Journal of Agricultural Science and Technology . 2017, (5): 1 -11 .  DOI: 10.13304/j.nykjdb.2016.747

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