Research, Policy and Practice
Table 2 PPR disease parameters, age structure, weight and sale value of sheep and goats in Turkana County 2010
From: Economic losses associated with Peste des petits ruminants in Turkana County Kenya
| Â | Median (10th and 90th percentiles) | |||
|---|---|---|---|---|
Parameter for the sheep | New born lambs ( imethek ) | Older lambs ( nanyang ) | Middle age sheep ( amethek nakale ) | Adult sheep ( amethek naapolon ) |
  G y…a = age structure sheep median proportion (%) | 15.84 (8.27, 22.40) | 20.79 (13.83, 28.34) | 24.00 (17.83, 34.63) | 37.37 (28.01, 50.20) |
  W y…a = average live weight per age group | 2.5 | 4.5 | 10 | 30 |
  C y…a = TLU value for each age group sheep (US$) | 1.5 | 2.7 | 6.0 | 18.0 |
  H y…a = relative mortality due to PPR in the age groups | 17.00 (5.40, 31.00) | 17.00 (6.45, 34.90) | 16.00 (7.33, 37.15) | 20.00 (7.80, 34.90) |
  I y…a = relative incidence of PPR in the age groups | 20.00 (7.00, 38.00) | 20.00 (10.00, 40.36) | 19.00 (9.87, 40.03) | 25.00 (11.40, 40.78) |
  I af = relative incidence of PPR in the lactating groups |  |  |  | 25.00 (11.40, 40.78) |
Parameters for the goats | Newborn kids ( ikale ) | Older kids ( namenaoei ) | Middle age goats ( akale ) | Adult goats ( akine ) |
  G y…a = age structure goat median proportion (%) | 18.75 (12.00, 24.44) | 20.2 (14.77, 29.96) | 21 (17.46, 27.06) | 38 (25.24, 53.20) |
  W y…a = average live weight per age group | 2.5 | 5 | 12.5 | 35 |
  C y…a = TLU value for each age group goat (US$) | 1.5 | 3.0 | 7.5 | 21.0 |
  H y…a = relative mortality due to PPR in the age groups | 14.21 (6.05, 28.56) | 17.00 (5.50, 25.5) | 16.32 (6.50, 26.5) | 16.66 (7.45, 35.00) |
  I y…a = relative incidence of PPR in the age groups | 17.79 (8.50, 32.13) | 20.47 (8.43, 31.00) | 20.00 (9.50, 30.00) | 20.88 (10.41, 36.00) |
  I af = relative incidence of PPR in the lactating groups |  |  |  | 20.88 (10.41, 36.00) |