Pig-to-pig transmission accounts for 90 percent of the disease problems that Brian Caldwell, a Wells, Minn., swine practitioner, sees.
Biosecurity is probably the most effective method to prevent disease. And prevention is easier than curing a disease, says Caldwell.
The most common types of pig-to-pig transmission occur from:
- Breeding stock.
- Finishing pigs.
- Internal multiplication programs.
- Immune status variations over time.
- Health variations within pig groups.
Other sources of disease introduction, besides pig-to-pig transmissions, include manure transmissions, aerosol transmissions and other vectors.
Understanding and considering these factors are important as you design and implement a biosecurity program for your herd.