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Washington [US], April 26 : Pet rabbits have greater levels of the stress hormone corticosterone and show activity rebound when housed in small hutches with little exercise, according to a new study by the University of Bristol Vet School.The RSPCA-funded study emphasises the need of allowing pairs of pet rabbits to exercise outside of their home enclosure, even if they are kept in hutches bigger than the standard size.Rabbits are a popular choice for many families, with an estimated 900,000 rabbits kept as pets in the UK. Several studies have looked at the housing needs of rabbits kept in laboratories and for meat, but very few studies have explored the housing needs of pet rabbits and these studies have only focused on single rabbits. mal welfare orgsations recommend pet rabbits live in pairs.The aim of the study, published in Applied mal Behaviour Science, was to investigate the effects of common hutch sizes and access to an exercise area on the welfare of pet rabbits kept in pairs.Twenty pre-established pairs of adult neutered rabbits (one male, one female) were kept for eight weeks in standard housing. Ten pairs were in small wooden hutches (0.73 square metre) and ten in large hutches (1.86 square metre). The exercise area was a run - measuring 3 x 1 metre - attached to the hutches, and the rabbits had either unlimited access to it or access was restricted to three hours at midday.Each pair had access to each run for three weeks. Behaviour was observed at dawn, dusk and midday, and faecal samples were collected for corticosterone analysis at the end of each access period.In a subsequent study, ten of the rabbit pairs were given 24 hours access to the run, and their behaviour recorded.The study showed rabbit pairs were more active when run access was restricted to three hours. Irrespective of the hutch size, physical activity including play jumps increased significantly when the pairs with restricted access were released into the run. The researchers suggest this activity rebound demonstrates the rabbits' need to move every day, and their welfare is compromised when they can only do so at midday.The research team found there is a significant interaction between hutch size and run access on activity and stress hormone levels, which were highest in the pairs kept in small hutches with restricted run access. When rabbits had unrestricted access to the run, midday was the rabbits' least active time.Drs Nicola Rooney and Suzanne Held, senior authors of the paper from the University of Bristol Veterinary School, said: "Rabbits are active and need to be able to hop, run, jump, dig and stretch out fully when lying down. Restricting rabbits' opportunity to get away from each other and to move to times of day, when they would not naturally be as active, is likely to contribute to the activity peaks and high stress hormone levels in the pairs in the smaller hutches with limited access to a run."Housing guidelines for rabbits need to highlight the importance of allowing pet rabbits the freedom to exercise in the morning and afternoon, even if they are kept in hutches larger than the traditional hutch size."The study suggests hutch sizes of around a 0.75 square metre floor area should not be recommended for rabbit pairs, even if they have access to an exercise area for three hours per day during the middle of the day.The research's recommendations have been incorporated in RSPCA and other mal charities rabbit care advice on housing.RSPCA rabbit welfare expert Dr Jane Tyson said: "The findings of this research are highly welcomed confirming what many of us have known for so long, that keeping rabbits in small hutches with limited opportunities to exercise compromises their welfare."Rabbits are often misunderstood mals but the findings from the study show that housing rabbits in an enclosure consisting of a sheltered area with constant access to a larger space is critical."Not only does this allow rabbits to have more room for exercise, it provides them with choice and control over their environment so they can perform the behaviours they want to, when they want to."The findings of the study have also influenced the UK Rabbits Strategy for rabbit welfare that will be published later this year.Disclaimer: This post has been auto-published from an agency feed without any modifications to the text and has not been reviewed by an editor

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University of bristol vet school, Latest News

Lifestyle :Study: Pet rabbits desire freedom to exercise

Washington [US], April 29 : In a recent study conducted by the University of Bristol Vet School, it was ... ...

Lifestyle :Pet rabbits require freedom to exercise: Study

Washington [US], April 26 : Pet rabbits have greater levels of the stress hormone corticosterone and show activity rebound ... ...