Table 7.
Household-level impacts of biosecurity interventions reducing the proportion of birds lost to disease by 10, 25, 50, and 75% in flocks of 1–20 and 21–50 birds.
| Proportion of disease losses prevented | ||||
|---|---|---|---|---|
| Impact at household level | 10% | 25% | 50% | 75% |
| Flocks of 1–20 birds | ||||
| Number of deaths avoided | 0.67 | 1.67 | 3.35 | 5.02 |
| Number of egg losses avoided | 4.12 | 10.30 | 20.61 | 30.91 |
| Value of avoided losses in TZ Sh. | 3,291 | 8,227 | 16,455 | 24,682 |
| Value of avoided losses in number of birds1 | 0.50 | 1.25 | 2.50 | 3.76 |
| Increase in household income (%) | 0.15 | 0.37 | 0.75 | 1.12 |
| Flocks of 21–50 birds | ||||
| Number of deaths avoided | 0.79 | 1.98 | 3.96 | 5.93 |
| Number of egg losses avoided | 3.31 | 8.28 | 16.55 | 24.83 |
| Value of avoided losses in TZ Sh. | 3,870 | 9,675 | 19,350 | 29,025 |
| Value of avoided losses in number of birds1 | 0.56 | 1.40 | 2.80 | 4.19 |
| Increase in household income (%) | 0.13 | 0.32 | 0.64 | 0.96 |
1
Having reached average age/weight for sale.