. 2021 Dec 31;12(1):94. doi: 10.3390/ani12010094

Table 5.

Descriptive statistics of farrowing duration and litter size of different parities.

Parities	Number of Litters	Farrowing Duration (Minute)	CV (%) ¹	TNB ²	NBA ³	NBD ⁴
1	89	212.65 ^d ± 61.90	29.12%	10.83 ^c ± 2.35	10.59 ^c ± 2.34	0.16 ^c ± 0.40
2	6915	243.01 ^c ± 67.68	27.85%	11.45 ^b ± 2.51	11.17 ^b ± 2.48	0.23 ^b ± 0.53
3	7477	247.23 ^bc ± 67.23	27.19%	11.89 ^a ± 2.42	11.59 ^a ± 2.40	0.24 ^b ± 0.55
4	5078	250.23 ^bc ± 65.84	26.31%	11.99 ^a ± 2.44	11.66 ^a ± 2.39	0.26 ^ab ± 0.60
5	3559	251.10 ^bc ± 67.23	26.79%	11.81 ^a ± 2.42	11.51 ^a ± 2.39	0.26 ^ab ± 0.60
6	3065	252.01 ^b ± 68.35	27.12%	11.52 ^b ± 2.34	11.20 ^b ± 2.33	0.26 ^ab ± 0.56
7	6018	260.40 ^a ± 68.02	26.12%	11.03 ^c ± 2.38	10.65 ^c ± 2.34	0.32 ^a ± 0.65

¹ CV represents coefficient of variation of duration of farrowing. ^a–d Values within a column with different superscripts differ significantly at p < 0.05. ² TNB represents total number of born. ³ NBA represents number born alive. ⁴ NBD represents number born dead.