Table 1.

Estimation of the prevalence of diarrhea in yaks in Hongyuan on the plateau.

Farms	No. of yak calves (prevalence %)	No. of adult yaks (prevalence %)	Total No. of yak (prevalence %)
1	20–25 (10%–20%)	40–50 (2%–8%)	60–75 (5%–20%)
2	80–100 (25%–30%)	220–250 (5%–18%)	300–350 (10%–20%)
3	30–40 (5%–8%)	20–25 (0)	50–65 (2%–10%)
4	25–30 (2%–4%)	40–50 (0)	65–80 (0%–4%)
5	150–200 (15%–20%)	200–220 (5%–10%)	350–420 (10%–15%)
6	30–50 (10%–15%)	30–40 (2%–5%)	60–90 (5%–10%)
7	20–30 (5%–10%)	20–25 (2%–4%)	40–55 (4%–10%)
8	20–35 (10%–15%)	30–35 (5%–10%)	50–70 (8%–12%)
9	60–70 (20%–30%)	50–60 (5%–10%)	110–130 (15%–20%)
10	20–25 (10%–15%)	30–40 (3%–5%)	50–65 (8%–10%)
Total	455–605 (15%–25%)	680–795 (5%–10%)	1,135–1,400 (10%–15%)