Housing
Guinea pigs need a weatherproof, predator proof hutch raised off the ground and positioned out of direct sunlight and wind. Allow plenty of room i.e. at least 120cm long x 60cm wide x 60cm high for two guinea pigs.
In cold weather, the hutch should be moved into a shed or porch but do not place the hutch in a garage where exhaust fumes could be toxic to the guinea pigs. There should be two connecting compartments: one for the day and one for night retreat with a solid wall. Guinea pigs like their own separate sleeping compartments.
Ideally, the hutch should be within a secure wire enclosure where the guinea pigs can graze and exercise. Tubes, boxes, logs and flowerpots placed in the run provide interesting hiding places for guinea pigs.
Bedding
Bedding should be soft and dust free e.g. shavings, straw, shredded paper. Soiled bedding should be removed daily and all bedding should be removed before cleaning the hutch once weekly.
Feeding
Guinea pigs are naturally grazing animals, so it is important that they have an unlimited access to grass and good quality, non-dusty hay. The fibre provided by grass and hay is essential to prevent dental disease and to keep the digestive system healthy.
Guinea pigs lack the enzyme required for the production of vitamin C, therefore it is essential that their diet contains enough vitamin C. Growing, pregnant or sick guinea pigs have increased vitamin C requirements. The best sources of vitamin C are fresh vegetables and fruit e.g. dark green leafy vegetables such as spinach, broccoli, kale, cabbage, herbs (e.g. parsley), dandelion leaves, red and green peppers, apples, carrots, tomatoes and even kiwi fruit.
A small amount of dry, concentrated guinea pig-specific food should be fed twice daily. Complete pelleted diets are preferred to coarse mixes to prevent selective feeding which can lead to nutritional deficiencies. Specially formulated guinea pig diets contain additional vitamin C, but they cannot replace the vitamin C provided by fresh vegetables and fruit.
Don’t be surprised to see your guinea pig eating its own faecal pellets or caecotrophs. This is a normal process called coprophagy and optimises nutrient utilisation.