Table 1

Year	Bulls tested	Bulls positive	Prevalence (%)	Predicted prevalence F(x)=261.020047-0.129685x
1997	433	5	1.15
1998	919	18	1.96
1999	1525	41	2.69	1.78
2000	4604	76	1.65	1.65
2001	6025	78	1.29	1.52
2002	5767	73	1.27	1.39
2003	6855	43	0.63	1.26
2004	7515	44	0.59	1.13
2005	7450	79	1.06	1.00
2006	7270	57	0.78	0.87
2007	7080	50	0.71	0.74
2008	7275	45	0.62	0.61
2009	7597	98	1.29	0.48
2010	8222	17	0.21	0.35

Table 1: Trichomoniasis prevalence of individual bulls in Wyoming beef cattle between 1997 and 2010.