Table 1 Criteria to discriminate pig farming systems. Criteria to discriminate pig farming systems using farm scales as defined in the Standard for Good Agricultural Practices for Pig Farm in Thailand in 2009
From: Spatial analysis and characteristics of pig farming in Thailand
Categories | Definitions | Approximate number of pigs |
|---|---|---|
Smallholder | Raising boar and sow or finishing pig or piglet or combination of different ages that has the livestock weight less than six unitsa | <50 headb |
Large-scale farm | ||
 Small | Raising boar and sow or finishing pig or piglet or combination of different phases of age that has the livestock weight between 6 and 60 unitsa | 50–500 head |
 Medium | Raising boar and sow or finishing pig or piglet or combination of different phases of age that has the livestock weight between 60 and 600 units. | 500–5000 head |
 Large | Raising boar and sow or finishing pig or piglet or combination of different phases of age that has the livestock weight more than 600 units | >5000 head |