Which response is described for a pig exposed to temperatures below its thermoneutral zone?

The material describes reduced blood flow to the extremities and shivering below the thermoneutral zone. Pigs may also huddle or burrow into bedding to conserve warmth, and feed consumption can increase as temperature falls. The other options describe incorrect responses: enlarged skin vessels are associated with heat loss in warmer conditions, pigs are described as releasing little skin moisture, and they do not stop heat production. **Key takeaway:** Cold responses conserve or generate heat through physiology and behavior.\n\n**Glossary:**\n- **Extremities**: Body regions such as the feet and ears, away from the core.\n- **Shivering**: Muscle activity that generates heat.\n- **Thermoneutral zone**: Temperature range associated with minimal thermoregulatory strain.