Table 3.

Summary of pregnancy outcome indicators from Canadian cow-calf herds reported in submitted annual herd calving records (n = 565) for the C3SN between 2019 and 2022.

	Number females calving			Percent of pregnant cows that aborted			Percent of calves dead within 24 h			Percent of calving females with twins
	Cows	Heifers	Total	Cows	Heifers	Total	Cows	Heifers	Total	Cows	Heifers	Total
Total herd records	N = 565	N = 520	N = 565	N = 559	N = 519	N = 559	N = 563	N = 523	N = 563	N = 564	N = 523	N = 564
Mean	165	33	196	1.6%	2.9%	1.8%	2.5%	3.9%	2.7%	3.1%	1.4%	2.9%
SD*	151	35	180	1.9%	9.3%	2.5%	2.3%	5.7%	2.2%	2.6%	3.3%	2.3%
2.5th percentile	27	3	32	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%
5th percentile	33	4	39	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%
25th percentile	65	11	78	0.0%	0.0%	0.5%	1.0%	0.0%	1.2%	1.3%	0.0%	1.3%
Median	120	22	138	1.1%	0.0%	1.3%	2.1%	1.7%	2.2%	2.6%	0.0%	2.4%
75th percentile	226	43	261	2.2%	3.1%	2.3%	3.4%	6.0%	3.8%	4.2%	1.3%	3.9%
95th percentile	407	97	490	4.7%	10.0%	4.7%	6.5%	14.3%	6.9%	7.9%	7.1%	7.1%
97.5th percentile	615	131	754	6.5%	16.7%	6.9%	8.3%	20.0%	8.3%	9.8%	9.1%	8.7%

Values for herds from Western and Eastern Canada are reported separately in Supplementary Tables S3a,b.

*Standard deviation.