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Table 2 Number of stillborn puppies per litter in relation to litter size and duration of parturition (hours from birth of the first to the last puppy).

From: Canine neonatal mortality in four large breeds

  Litter size Duration of parturition (hours)
No. stillborn puppies per litter n of litters x ¯ MathType@MTEF@5@5@+=feaafiart1ev1aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacPC6xNi=xH8viVGI8Gi=hEeeu0xXdbba9frFj0xb9qqpG0dXdb9aspeI8k8fiI+fsY=rqGqVepae9pg0db9vqaiVgFr0xfr=xfr=xc9adbaqaaeGacaGaaiaabeqaaeqabiWaaaGcbaGafmiEaGNbaebaaaa@2D64@ SD n of litters x ¯ MathType@MTEF@5@5@+=feaafiart1ev1aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacPC6xNi=xH8viVGI8Gi=hEeeu0xXdbba9frFj0xb9qqpG0dXdb9aspeI8k8fiI+fsY=rqGqVepae9pg0db9vqaiVgFr0xfr=xfr=xc9adbaqaaeGacaGaaiaabeqaaeqabiWaaaGcbaGafmiEaGNbaebaaaa@2D64@ SD
0 65 6.9 2.9 55 7.0 4.2
1 12 8.7 1.9 10 10.6 4.2
2 8 8.4 2.5 7 9.1 2.6
3 9 9.1 2.4 9 18.2 7.8
>3 4 10.3 3.9 3 22.7 6.6
Sum/mean 98 7.6 2.9 84 9.5 6.9