What to have on hand: supporting hospitalised small mammal patients

In my experience, optimal nutritional support is a cornerstone of successful clinical outcomes in small herbivorous mammals. For species such as rabbits, guinea pigs, chinchillas and degus, appropriate forage provision is not simply supportive care but fundamental to preventing secondary complications and promoting recovery during hospitalisation.

Veterinary professionals play a key role in ensuring these patients receive adequate fibre and nutrition during what is often a highly stressful time. This piece outlines the core nutritional requirements of small herbivores, alongside practical guidance on forage provision, feeding strategies, and key products to keep in stock to support hospitalised patients effectively.

Understanding the nutritional requirements of exotic 'small mammal' pets 

Rabbits, guinea pigs, chinchillas and degus are all hindgut fermenters with highly specialised digestive systems. Their gastrointestinal tract is adapted for the continuous processing of fibrous plant material, with the caecum playing a critical role in fermentation and nutrient absorption. As such, these species have an ongoing requirement for fibre, and any disruption to intake can rapidly lead to gastrointestinal stasis, dysbiosis and systemic compromise.

The gastrointestinal tract in these animals is in constant motion, driven largely by the intake of fibre. Both digestible and indigestible fibre fractions are essential: digestible fibre supports microbial fermentation and production of volatile fatty acids, while indigestible fibre promotes gut motility and effective passage of ingesta.

In practical terms, this means that 85-90% of the diet should consist of high-quality feeding hay. This should be complemented by a small, measured portion of nutritionally balanced nuggets to ensure micronutrient adequacy. Fresh foods also play a role, particularly for rabbits and guinea pigs, although their introduction must be carefully managed in chinchillas and degus due to increased sensitivity to dietary sugars and moisture.

Vitamin C deserves particular attention in guinea pigs, as they are unable to synthesise it endogenously. Requirements may increase significantly during periods of stress or illness, making appropriate dietary provision essential in the hospital setting.

Tips for feeding herbivorous exotic pet species in hospital

Hospitalisation presents unique challenges for maintaining adequate nutritional intake. Stress, pain, unfamiliar environments and underlying disease frequently contribute to inappetence, which can quickly exacerbate clinical conditions in these species.

A key practical recommendation is to request that owners bring in the animal’s usual diet, including their regular hay and any preferred fresh foods. As prey species, small herbivores are naturally neophobic, and familiar food items can significantly improve acceptance. Additionally, evaluating the quality and composition of the animal’s home diet can provide valuable clinical insight into potential predisposing factors for disease.

Where possible, consideration should also be given to hospitalising bonded companions together. These species are highly social, and separation can lead to stress, reduced food intake, and potential disruption of established social bonds. Maintaining companionship can therefore support both psychological wellbeing and feeding behaviour.

Encouraging intake in inappetent patients

Forage quality is critical in encouraging voluntary intake. Practices should maintain a supply of fresh, high-quality feeding hay that is fragrant, dust-free and visually appealing. Hay that is stale or dusty is unlikely to be consumed and may even contribute to respiratory irritation.

Offering a variety of forage types can also be beneficial. Some patients, particularly those that are unwell, may show a preference for softer, more palatable options such as younger grasses. Products such as dried fresh grass can be particularly useful in stimulating appetite during recovery.

In addition to hay, providing a range of safe fresh foods, including herbs and home-grown options such as dandelion leaves or grass, can encourage exploratory feeding. Growing these in-house (for example, in a window box) ensures they are free from pesticides and contaminants. As with all dietary interventions - variety is key, as individual animals often exhibit distinct flavour preferences.

The role of supportive feeding products

Supportive feeding products play an important role in managing inappetent patients. A product like Burgess Excel Dual Care offers several advantages in the clinical setting. It provides a high-fibre formulation to support gastrointestinal function, alongside elevated levels of vitamin C to meet increased demands during illness, particularly in guinea pigs.

Its versatility is also clinically useful: it can be offered as a nugget to encourage voluntary feeding or reconstituted with water for syringe feeding in patients that are unwilling or unable to eat independently. This facilitates a smoother nutritional transition as the patient recovers, while ensuring that fibre intake is maintained throughout.

Practical considerations in the hospital

Finally, the physical setup of the hospital enclosure plays an important role in supporting feeding behaviour. Space constraints are often a challenge, but efforts should be made to clearly separate feeding and toileting areas. Hay should be provided in a manner that minimises soiling, like in hay racks or elevated feeders, to maintain its appeal and hygiene.

Care should also be taken to avoid over-reliance on concentrate feeds. While nuggets can be useful, particularly in encouraging intake, excessive provision may lead to reduced hay consumption and inadequate fibre intake, ultimately compromising gastrointestinal health.

What products to keep in stock in your veterinary hospital

To effectively support hospitalised small herbivores, practices should ensure they maintain a well-considered inventory of nutritional products, including:

• High-quality feeding hay: A combination of species-appropriate options, such as Timothy hay and good-quality meadow hay, should be available. Including more palatable varieties, such as dried fresh grass, can help inappetent patients.

• Supportive feeding products: A reliable, fibre-rich formulation suitable for both voluntary and assisted feeding is essential.

• Fresh food options: A rotating selection of safe herbs and home-grown forage (e.g. dandelions, grass) can help stimulate appetite and provide dietary enrichment.

• Measured nugget feeds: Nutritionally complete pellets should be available but in moderation to ensure they don’t replace essential fibre in the diet.

Final thoughts

Effective forage provision is a fundamental component of the clinical management of small herbivorous mammals. By understanding specific nutritional needs, maintaining high-quality and varied forage options, and utilising appropriate supportive feeding strategies, veterinary practices can significantly improve outcomes for hospitalised patients.

A proactive approach to stocking and feeding not only supports gastrointestinal health but also enhances overall patient welfare, aiding recovery and reducing the risk of complications during hospitalisation.