Odds ratios (OR) and 95% confidence interval (CI) for the effects of calf sex, and age at the first calving on the incidence of dystocia in Holstein cows (n = 112,443).
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Odds ratios (OR) and 95% confidence interval (CI) for the effects of calf sex, and age at the first calving on the incidence of dystocia in Holstein cows (n = 112,443).
创建时间:
2021-01-04




