<p>Respiratory rate (n = 40) and vaginal temperature (n = 15) of primiparous Holstein cows supplemented (RPM) or not (CON) with rumen-protected methionine during summer.</p>
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Respiratory rate (n = 40) and vaginal temperature (n = 15) of primiparous Holstein cows supplemented (RPM) or not (CON) with rumen-protected methionine during summer.
创建时间：
2026-02-26
