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Investigation of the effects of the age at first calving of Holstein cows on the milk yield of the first parity.
Investigation of the effects of the age at first calving of Holstein cows on the milk yield of the first parity.
2018
Zhang Bin
Liu He
Shi Kai
Wang Yu
Liu Jian-xin
Liu HongYun
Keywords:
milk production
Biology
Animal science
Ice calving
Parity (mathematics)
Animal breeding
milk yield
Correction
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