Mean ± SE number of times, during a 3-min observational period, heifers were observed showing each of five ear positions (and when ear position could not be scored), as well as four body movements.
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Mean ± SE number of times, during a 3-min observational period, heifers were observed showing each of five ear positions (and when ear position could not be scored), as well as four body movements.
创建时间：
2024-10-10
