How to keep guinea pigs warm in winter when raising them outdoors:

1. When the temperature drops in winter, guinea pigs need to be moved from outdoors to indoors. Generally speaking, when the temperature is as low as 20°C, guinea pigs are prone to colds. Therefore, when the temperature drops in winter, guinea pigs need to be moved from outdoors to indoors.

2. Build a small house for the guinea pig outdoors that can protect it from wind and rain and keep it warm. You can build a small house for the guinea pig outdoors that is weatherproof and warm, and control the temperature between 20 and 25 degrees.

3. When taking the guinea pig to play outdoors, you need to put on warm clothes for the guinea pig. If you take the guinea pig out to play temporarily, you can put the guinea pig in warm clothes.

4. You can put the guinea pig in the owner's arms and go out. If the guinea pig cannot wear warm clothes, you can put the guinea pig in the owner's pocket to ensure that the guinea pig is not blown by the wind and does not get cold.

5. Pay attention to feeding guinea pigs more fat-rich foods to store enough fat for the winter. Fatty meat is the best thermal insulation product. Feeding guinea pigs food rich in fat can store enough fat for the winter.