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Effects of Ground Floor Type on Selected Health-Parameters and Weight of Rabbits Reared in Group Pens

1
Institute of Animal Welfare Science, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Veterinärplatz 1, 1210 Vienna, Austria
2
Institute of Pathology, Department for Pathobiology, University of Veterinary Medicine, Vienna, Veterinärplatz 1, 1210 Vienna, Austria
3
Institute of Parasitology, Department for Pathobiology, University of Veterinary Medicine, Vienna, Veterinärplatz 1, 1210 Vienna, Austria
*
Author to whom correspondence should be addressed.
Animals 2019, 9(5), 216; https://doi.org/10.3390/ani9050216
Received: 26 February 2019 / Revised: 28 April 2019 / Accepted: 2 May 2019 / Published: 4 May 2019
(This article belongs to the Section Animal Welfare)
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Simple Summary

Cage housing of growing rabbits is associated with welfare concerns. An alternative system that has already been introduced involves pens with non-wire floors. An important aspect of group pens, for which the best solution has not yet been clearly demonstrated, is the choice of floor material. We investigated effects of two ground floor types—slatted plastic floor versus concrete floor with straw litter—on health-related parameters and weight of rabbits reared in large group pens on a commercial rabbit farm, i.e., with preventive coccidiostatic, and if required, additional therapeutic medical treatment. Pens were identical in dimensions, equipment (including platforms), and initial group size (60 animals/pen). Four pens were studied per ground floor type in three consecutive rearing periods, i.e., 12 pens/ground floor type. A higher percentage of rabbits per pen had clean fur if reared on straw. No significant differences were found in parasitic burden, mortality, pathological alterations, or causes of loss. Thus, often-expressed concerns that parasitic load and mortality would be higher in groups kept on straw were not confirmed when rabbits were housed under otherwise equal conditions. Average slaughter weight was higher in rabbits reared on a slatted plastic floor, confirming previous findings of a negative impact of straw litter on weight gain.

Abstract

Cage housing of growing rabbits is associated with welfare concerns. An alternative system that has already been introduced involves pens with non-wire floors. An important aspect of group pens, for which the best solution has not yet been clearly demonstrated, is the choice of floor material. The study investigated effects of two ground floor types—slatted plastic floor versus concrete floor with straw litter—on health-related parameters and weight of rabbits reared in large group pens on a commercial rabbit farm, i.e., with preventive coccidiostatic, and if required, additional therapeutic medical treatment. Pens were identical in dimensions, equipment (including platforms), and initial group size (60 animals/pen). Four pens were studied per ground floor type in three consecutive rearing periods (in total, 12 pens per floor type). A higher percentage of rabbits per pen had clean fur if reared on straw (p < 0.05). No significant differences were found in the load of coccidial oocysts in collective faecal samples, mortality, pathological alterations, or causes of loss (p > 0.05). Thus, often-expressed concerns that parasitic load and mortality would be higher in groups kept on straw were not confirmed when rabbits were housed under otherwise equal conditions. Average slaughter weight was higher in rabbits reared on a slatted plastic floor (p < 0.05), confirming previous findings of a negative impact of straw litter on weight gain. View Full-Text
Keywords: growing rabbits; pen housing; floor; slatted plastic floor; straw litter; soiling; coccidia; causes of loss; mortality; weight growing rabbits; pen housing; floor; slatted plastic floor; straw litter; soiling; coccidia; causes of loss; mortality; weight
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Windschnurer, I.; Waiblinger, S.; Hanslik, S.; Klang, A.; Smajlhodzic, F.; Löwenstein, M.; Niebuhr, K. Effects of Ground Floor Type on Selected Health-Parameters and Weight of Rabbits Reared in Group Pens. Animals 2019, 9, 216.

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