Table 1.
Farm information and manure management practices by small-scale pig farmersa with biogas digesters in Hoang Tay and Nhat Tan commune. Range values are shown in brackets.
| Hoang Tay (N = 22) | Nhat Tan (N = 20) | |||
|---|---|---|---|---|
| Toilet connected to biogas digester |
Toilet connected to biogas digester |
|||
| Yes (n = 11) | No (n = 11) | Yes (n = 10) | No (n = 10) | |
| Number of persons living at farms | 4 (2–7) | 4 (1–7) | 4.5 (3–7) | 3.6 (2–6) |
| Number of sows per farm | 2.4 (0–6) | 6.2 (2–20) | 0.9 (0–3) | 9.9 (0–40) |
| Number of fattening pigs per farm | 4.6 (0–22) | 18.4 (0–62) | 16.5 (5–26) | 41.6 (8–150) |
| Number of piglets per farm | 8.3 (0–35) | 27.6 (0–90) | 0.5 (0–5) | 24.5 (0–130) |
| Biogas volume (m3) | 10.1 (7.5–13) | 12.1 (10–14) | 11.1 (6–17) | 13.9 (7.5–20) |
| Farms using disinfectants in pigpen | 10 | 10 | 8 | 6 |
| Effluent tank present | 1 | 2 | 2 | 4 |
| Farmers applying protective measures when handling manureb | 6 | 10 | 9 | 8 |
| Farmers applying protective measures when handling effluentb | 7 | 6 | 3 | 6 |
| Farmers using personal hygiene activity after handling manure/effluentc | 9 | 11 | 8 | 10 |
| Farmers experienced reduced fly problems | 11 | 11 | 9 | 10 |
| Farmers experienced reduced smell problems | 11 | 11 | 10 | 10 |
a
Farmers include one per farm (either husband or wife).
b
Boots, clothes, gloves, and mask.
c
Shower, wash hand with water, wash hand with soap.