Cow Inbreeding Trends

Cow Inbreeding Trends Menu

Trend in Inbreeding Coefficients for Holstein or Red & White

Calculated August 2008

Birth Year	Cows	Percent Inbreeding	Expected Future Inbreeding
2008	329342	5.38	5.33
2007	866780	5.32	5.30
2006	1125456	5.24	5.25
2005	1433246	5.15	5.20
2004	1448003	5.05	5.13
2003	1388043	4.94	5.05
2002	1350886	4.83	4.98
2001	1307114	4.68	4.87
2000	1308421	4.55	4.77
1999	1233324	4.40	4.67
1998	1174267	4.27	4.61
1997	1143548	4.12	4.52
1996	1092432	3.94	4.39
1995	1126838	3.72	4.21
1994	1137545	3.50	4.10
1993	1131316	3.28	4.00
1992	1144902	3.04	3.85
1991	1155513	2.83	3.68
1990	1148496	2.53	3.49
1989	1120331	2.27	3.34
1988	1120820	2.03	3.13
1987	1095684	1.86	2.96
1986	1057253	1.69	2.79
1985	1046357	1.52	2.63
1984	1023085	1.34	2.50
1983	1030093	1.20	2.39
1982	1014950	1.06	2.26
1981	981922	0.96	2.08
1980	936990	0.87	1.90
1979	872794	0.81	1.75
1978	802894	0.75	1.63
1977	763962	0.70	1.58
1976	705731	0.68	1.51
1975	643557	0.63	1.42
1974	614531	0.58	1.36
1973	590072	0.53	1.33
1972	567075	0.50	1.29
1971	542230	0.46	1.23
1970	518464	0.41	1.18
1969	496451	0.38	1.14
1968	485010	0.33	1.07
1967	469848	0.29	1.01
1966	448727	0.26	0.97
1965	431215	0.22	0.95
1964	423249	0.18	0.93
1963	411883	0.13	0.92
1962	403667	0.06	0.89
1961	401507	0.00	0.88
1960	384996	0.00	0.87