Monthly population parameters for the Swiss cattle population.
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D: dairy; B: beef; F: female; M: male; X: calf, Y: subadult, Z: adult. Small letters indicate rates (s: slaughter, m: mortality, f: fattening, tr: transition to next age class). μ1: average birth rate; μ2: average mortality rate;Monthly population parameters for the Swiss cattle population.
创建时间：
2015-12-02
