Seroprevalence and risk factors of Brucella ovis in domestic sheep in Wyoming, USA

BMC Veterinary Research

Table 3 Total blood samples collected from 2423 sheep in 18 flocks in Wyoming, USA

Flock	Total number of sheep		Number of blood samples		Required sample size	Total samples
Flock	Rams	Ewes	Rams	Ewes	Required sample size	Total samples
1	50	1600	23	N/A	38	23
2	75	2300	50	196	142	246
3	10	35	10	N/A	10	10
4	210	6000	185	157	148	342
5	15	120	9	16	72	25
6	40	1000	40	N/A	32	40
7	105	2500	90	144	143	234
8	12	400	9	N/A	12	9
9	400	8000	393	64	149	457
10	100	2000	66	N/A	61	66
11	202	6000	202	N/A	87	202
12	55	2100	55	N/A	41	55
13	25	80	15	20	62	35
14	70	730	67	69	128	136
15	35	950	32	92	135	124
16	250	9500	187	188	149	375
17	50	1250	35	N/A	38	35
18	NA	NA	9	N/A	NA	9
Total			1477	946	1447	2423

ISSN: 1746-6148