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Table 6 Multivariable model for live born piglets in the next farrowing including DN/SN, year and parity with random sow effect, during the period 2013–2016 (N = 2,039)

From: The effect of double nursing, an alternative nursing strategy for the hyper-prolific sow herd, on herd performance

Factor Category Coefficient 95% CI Count
Previous nursing type SN reference   1,791
DN −0.95 −1.36–−0.52 248
Year of previous weaning 2013 0.17 −0.19–0.54 638
2014 0.32 0.00–0.64 784
2015 reference   617
Previous parity 2 1.12 0.60–1.65 442
3 1.37 0.85–1.89 424
4 1.23 0.70–1.75 378
5 0.96 0.43–1.49 325
6 0.80 0.26–1.33 283
7 reference   187