Activity and rumination changes as predictors of calving in primiparous and multiparous Holstein cows

K. Macmillan,M. Gobikrushanth,M. G. Colazo

Livestock Science（2022）

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摘要

•Dairy cows were fitted with a collar-mounted automated activity monitor.•Rumination decreased starting at 10 h before calving.•Activity increased starting at 8 h before calving.•Activity was greater in primiparous compared to multiparous cows.•Behaviour change before calving was delayed in multiparous cows.

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关键词

Automated activity monitor,Primiparous,Multiparous,Dairy cows

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