Research, Policy and Practice
Table 4 Calculated production losses associated with PPR in sheep and goats
From: Economic losses associated with Peste des petits ruminants in Turkana County Kenya
| Â | Losses in US dollars | |
|---|---|---|
| Â | Sheep | Goat |
Mortality | Â | Â |
  L d = (G y…a × H y…a × C y…a) × (N/100) | 5,972,889 | 10,368,074 |
  L y = (P f × H a × C y) × (N/100) | 211,029 | 224,717 |
  L = L d  + L y | 6,183,919 | 10,592,791 |
Milk losses | Â | Â |
  M r = (L f × (I af − H a) × V l × T r × C m) × (N/100) | 22,619 | 69,000 |
  M y = ((L f + P f) × (I a − H a) × (365/K − 365/(K + Q)) V a × T l × C m) × (N/100) | 236,188 | 608,367 |
  M = M d  + M r  + M y | 258,807 | 677,367 |
Losses due to weight losses | Â | Â |
  W d = (G y…a × (I y…a − H y…a) × W l × W y…a × C me) × (N/100) | 428,312 | 744,959 |
  W y = ((L f + P f) × (I a − H af) × (365/K − 365/K + Q) × B × C me) × (N/100) | 41,179 | 37,003 |
  W = W d  + W y | 469,491 | 781,962 |
Opportunity cost | Â | Â |
  O c = (G y…a × (I y…a − H y…a) × (.025*C y…a)) × (N/100) | 35,479 | 63,817 |
  O = O c | 35,479 | 63,817 |
Total direct economic losses for field herd in Turkana | Â | Â |
  T L  = L + M + W + O | 6,947,696 | 12,115,938 |
Combined total loss | 19,063,633 | |