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[EN] The aim of the present study was to compare a new housing (NC) for rabbit does and their kits that complies with German welfare regulations with established wire mesh cages (CC) on a commercial rabbit farm. Rabbit does were single-housed from five days antepartum until weaning at 31 d postpartum either in large pens (80×80 cm with an open top) with slatted plastic flooring (11 mm slats and 11 mm gaps), nestbox, elevated platform (15% perforated) and different manipulable materials (NC) or in cages (70×50×30 cm) with wire mesh flooring (12×70 mm holes and 3 mm wire diameter), nestbox and one gnawing stick (CC). Skin lesions, weight development, fertility, morbidity, cleanliness and kit performance of 272 rabbit does in a total of six batches were investigated. While there was no difference in performance of their kits, rabbit does showed an impaired performance with less weight gain and less body weight at weaning, lower fertility, more injuries and a higher incidence of mastitis and diarrhoea at the end of the rearing period in NC housing compared to CC housing. Additionally, soiling of hind feet was higher in NC than in CC housing. Overall, the poor hygienic conditions may have affected the animals’ health and make an improvement in the new housing system necessary, especially with regard to the floor design., This study was funded by the Agricultural European Innovation Partnership (EIP-AGRI) in a framework of the project “Rawecoh-Le”. The authors wish to thank the participating farm staff and colleagues for their assistance, and especially Harald Ulbrich and Kai Göbel for their technical support in data collection.

At 33 d of age, 376 crossbred rabbits of both genders were housed in sex-mixed groups in 16 open-top collective pens (1.68 m2) in a factorial arrangement, with 2 types of flooring (wooden slats vs. plastic grid, W vs. P) and 2 stocking densities (12 vs. 16 animals/m2). Behavioural recordings (time budget), reactivity towards unknown humans (tonic immobility and human approach tests) and environment (open-field and novel object tests) and hair and faeces sampling for corticosterone analysis were performed during the 8th wk of age and at a pre-slaughter age (during the 11-12th wk of age). The effects of age and gender were also taken into account. Rabbits housed in W pens rested more in the crouched position (41.4 vs. 35.5% of the observed time) (PP=0.05), running (PP=0.01) than those housed in P pens. The percentage of rabbits that interacted with humans during the human approach test (24.0 vs. 48.1% of rabbits in the pen; Pvs. 87.2; Pvs. 72.5%; Pvs. 12.5 ng/g; PPP