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Table 3 Treatment by parity effect on number stillborn and stillbirth rate from Experiment 2

From: Glucosamine supplementation during late gestation alters placental development and increases litter size

  Treatment
Paritya Glucosamine Glucose
  Number stillborn Stillbirth rate Number stillborn Stillbirth rate
2 1.0 ± 0.3 (20)b 0.06 ± 0.02 0.8 ± 0.3 (20) 0.06 ± 0.02
3 1.4 ± 0.3 (30) 0.08 ± 0.02 1.0 ± 0.3 (30) 0.07 ± 0.01
4 0.9 ± 0.4 (15) 0.06 ± 0.02 1.3 ± 0.4 (16) 0.07 ± 0.02
5 1.8 ± 0.4 (14) 0.09 ± 0.02 1.8 ± 0.5 (11) 0.11 ± 0.03
6 1.8 ± 0.4 (14) 0.10 ± 0.03 2.2 ± 0.4 (15) 0.11 ± 0.03
7 2.1 ± 0.3 (23) 0.14 ± 0.03 1.5 ± 0.3 (23) 0.10 ± 0.02
8 2.6 ± 0.4 (12) 0.22 ± 0.04 1.2 ± 0.4 (12) 0.09 ± 0.03
  1. aFor both traits, the interaction contrast comparing the interaction between treatments and parities 2 through 6 combined versus parities 7 and 8 combined was statistically significant (P < 0.05), indicating that more stillborn piglets occurred in the glucosamine-treated parity 7 and 8 sows compared to earlier parity sows. Least squares means for the treatment by parity interaction for number of stillborn piglets and stillbirth rate from Exp. 2 are presented
  2. bNumbers of observations are in parentheses