Table 3 The economic evaluation model of PED outbreak farms
Details | Normal production | Group B | Group A |
|---|---|---|---|
The average amount of weaned piglets per week per sow | 11.6 | Â | Â |
Number of farrowing sows per week | 120 | Â | Â |
The expected times of PED outbreak per year | / | 0.39 | 0.45 |
The expected loss of piglets (weeks) | / | 1.24 | 1.72 |
Piglets survival per year | 0 | -681 | -1,087 |
Price of highly virulent live vaccine(Y̶/pig) | / | 8 | 8 |
Price of commercial live attenuated vaccine(Y̶/pig) | / | 11 | 11 |
Price of commercial inactivated vaccine(Y̶/pig) | / | 11 | 11 |
The 10-year average price of piglets/kg in China(Y̶) | 38.49 | 38.49 | 38.49 |
Duration of PED epidemic(weeks) | / | 3.48 | 5.18 |
Average piglet weight during PED epidemic | / | 3.97 | 3.85 |
Normal piglet weight | 6 | 6 | 6 |
Number of normal piglets | 0 | -4,844 | -7,211 |
Number of abnormal piglets | 0 | 4,163 | 6,123 |
Cash inflows | 0 | -538,732.70 | -814,007.09 |
Difference between group A and group B | Â | 275,274.39 | |