Bovine Inbreeding Trends

Bovine Inbreeding Trends Menu

Trend in Inbreeding Coefficients for Holstein or Red & White

Calculated August 2010

Birth Year	Cows	Percent Inbreeding	Expected Future Inbreeding
2010	366491	5.62	5.54
2009	975356	5.55	5.52
2008	1191573	5.43	5.47
2007	1453673	5.35	5.42
2006	1525954	5.26	5.34
2005	1530789	5.15	5.25
2004	1508333	5.05	5.17
2003	1424426	4.94	5.09
2002	1369436	4.83	5.02
2001	1318348	4.68	4.91
2000	1315043	4.55	4.80
1999	1236321	4.40	4.70
1998	1176583	4.27	4.64
1997	1145282	4.12	4.55
1996	1093592	3.94	4.42
1995	1127757	3.72	4.24
1994	1138221	3.50	4.13
1993	1131822	3.28	4.03
1992	1145393	3.04	3.87
1991	1155884	2.83	3.71
1990	1148831	2.53	3.52
1989	1120695	2.27	3.36
1988	1121130	2.03	3.15
1987	1095941	1.86	2.98
1986	1057544	1.69	2.81
1985	1046597	1.52	2.65
1984	1023311	1.34	2.52
1983	1030307	1.20	2.41
1982	1015128	1.06	2.28
1981	982047	0.96	2.09
1980	937141	0.87	1.91
1979	872885	0.81	1.77
1978	803006	0.75	1.64
1977	764083	0.70	1.59
1976	705819	0.68	1.52
1975	643657	0.63	1.43
1974	614640	0.58	1.37
1973	590156	0.53	1.34
1972	567141	0.50	1.30
1971	542287	0.46	1.24
1970	518517	0.41	1.19
1969	496506	0.38	1.15
1968	485042	0.33	1.08
1967	469891	0.29	1.02
1966	448753	0.26	0.98
1965	431238	0.22	0.96
1964	423262	0.18	0.94
1963	411899	0.13	0.93
1962	403687	0.06	0.90
1961	401509	0.00	0.89
1960	384993	0.00	0.88